How do i bind to a collection

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  - 1
    - How to retrieve TimeSpan from typed DataSet? I keep getting an InvalidCast exception when trying to do this: DataRow row = dtP.Rows.Find(projectID); bakInterval = new TimeSpan(); bakInterval = (TimeSpan)row[colBI]; //colBI is a string const Error Message: "Specified cast is not valid". As far as I know, the rowBI column is in fact a TimeSpan. Below is how the dtP table is created. The last line shows colBI created as a TimeSpan type. DataTable tblProject = database.Tables.Add("TableProject"); DataColumn project_ID = tblProject.Columns.Add("Project_ID", typeof(Int32)); project_ID.AllowDBNull = false; project_ID.Unique = true; project_ID.AutoIncrement = true; project_ID.AutoIncrementSeed = 1; project_ID.AutoIncrementStep = 1; tblProject.PrimaryKey = new DataColumn[] { tblProject.Columns[0] }; tblProject.Columns.Add("ProjectName", typeof(string)); tblProject.Columns.Add("BackupInterval", typeof(TimeSpan)); I can cast ProjectName to a string, and Project_ID to an int, but I can't cast BackupInterval to a TimeSpan. What am I doing wrong? Thanks in advance. Tag: How do i bind to a collection Tag: 125819
  - 2
    - Parameters --____YQDEHJGDEEXNVAEPSDFB____ Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Why should we use the parameter object when it seems like duplicated code. = The info is described in SQL Server as int, varchar, etc. so why do we = have to redundantly use the parameter object when inserting a record = rather than passing the parameter in an SQL query insert code? Just = curious??? --____YQDEHJGDEEXNVAEPSDFB____ Content-Type: multipart/related; boundary="____BUYAVGJDUGVQCUVJQAVX____" --____BUYAVGJDUGVQCUVJQAVX____ Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; charset=3Diso-8859-1"= > <META content=3D"MSHTML 6.00.2900.2802" name=3DGENERATOR></HEAD> <BODY style=3D"MARGIN: 4px 4px 1px; FONT: 10pt Tahoma"> <DIV>Why should we use the parameter object when it seems like duplicated = code.  The info is described in SQL Server as int, varchar, etc. so = why do we have to redundantly use the parameter object when inserting a = record rather than passing the parameter in an SQL query insert code? = Just curious???</DIV></BODY></HTML> --____BUYAVGJDUGVQCUVJQAVX____-- --____YQDEHJGDEEXNVAEPSDFB____-- Tag: How do i bind to a collection Tag: 125808
  - 3
    - not associated with a trusted sql connection Hi in my page i am getting the following error Message "Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection." String This only happens in ASP.net and doesn't happen in windows applications how can i stop it from happening. regards Tag: How do i bind to a collection Tag: 125806
  - 4
    - Is this a Bug in Visual Studio 2005?? Try the following in VS 2005: Add a SQLCommand object to a Windows Form Set the connection to the Northwind Database Change the "CommandType" to "StoredProcedure" In the "CommandText" property, select "CustOrderHist" from the combobox. The "Parameters" collection property does not get populated. Clear the "CommandText" property and press Enter. Manually type in "CustOrderHist" in the "CommandText" property and press Enter. The "Parameters" collection now gets populated correctly. Why doesn't the Parameters collection get populated when a stored proc is chosen from the combo box? Is this a bug or am I missing something? Cheers, Larry. Tag: How do i bind to a collection Tag: 125805
  - 5
    - Using SqlTransaction with MSSQL Trans? Hello all, I got seven sp's that uses transactions: BEGIN TRAN ... ROLLBACK TRAN ... COMMIT >From ado.net I need to execute all of these using transaction: SqlTransaction tran = conn.BeginTransaction() ... tran.Commit() ... tran.Rollback() Q: will a commit in sp's be rollbacked by ado.net's rollback? i.e. do ado.net and mssql use the same transactions-counter? Tag: How do i bind to a collection Tag: 125803
  - 6
    - NUNIT vs VSTS ?? Which is better ? Hi, I am trying to figure out best testing tool for my project. I have narrowed down my requirements to two tools NUNIT and VSTS unit. But I have used neither and I have to use only one of them. Hence can someone who has used them before share his/her experience on them so that I can get a better idea and make a proper choice ? Any link or suggestions are also welcome. Thanks and Regards, Parag MTS,Persistent Systems Private Limited Tag: How do i bind to a collection Tag: 125792
  - 7
    - Column 'Column' does not belong to table 'Table' Hello I have a dataset which is successfully being filled. However whenever i try to access a givewn row of one of the tables in the dataset i get the error "Column 'ContactId' does not belong to table 'SalesAgent'" Except that it does and if i use an ordinal reference i can access the value of the column. If i print the schema sure enough the column is called ContactId. I have also noticed that if i hover the cursor over the contactrow i can access a treeview which lists all columns in the contactrow and then tells me that none of them belong to table salesagent. This was a conversion from 1.1 to 2.0. Any ideas? Thanks Lenny Tag: How do i bind to a collection Tag: 125791
  - 8
    - How can cancel a validator I am use a RequiredFieldValidator to valid a Text box, and there are two Buttons on the forms, one for OK and one for Cancel, both are Asp.Net controls. When a user press Cancel to cancel the input, the RequiredFieldValidator also require user must enter the value. How can I do? Tag: How do i bind to a collection Tag: 125789
  - 9
    - c# - AcceptChanges - What's it used for? Hi, Can anybody tell me when you would use DataSet.AcceptChanges. If you use it, then all the new records are reset to be seen as original records (unchanged), and hence cannot be updated into the datasource. Therefore I've been using the update method which does both Accet changes (rebuilds the row numbers in the data table) & saves to datasource. I can understand RejectChanges as this would discard new rows before the update, but why AcceptChanges? When would you use it? Thanks for any ideas on this Ant Tag: How do i bind to a collection Tag: 125787
  - 10
    - Moving data from Access to SQL Server using ADO.NET Hi, I was looking for long time for a fast and reliable way to upload Access table into an empty SQL Server table. Finaly I came with a way that seems to be working fine but I'd like to get confirmation from this group that there are no hidden problem going that way. In short I used system.data.OledbConnection with Jet provider to get DataReader to the Access source and fed the system.data.SqlClient.BulkCopy object with that reader to bulk upload the changes. Here is a sample code: Can someone point out if this method will work in "all" cases ? What are the hidden problems I should expect ? Thanks, Einat using System; using System.Text; using System.Data; using System.Data.SqlClient; using System.Data.OleDb; using System.Runtime.InteropServices; namespace AccessDataTransfer { class Program { static void Main(string[] args) { String Sourcedb = "c:\\1.mdb"; String DestConnectionStr = "Data Source=localhost;Integrated Security=SSPI;Initial Catalog=gil2"; String TableName = "Foo"; if (args.Length >= 1) { if (args[0] == "/?") { PrintHelp(); return; } Sourcedb = args[0]; } if (args.Length >= 2) { DestConnectionStr = args[1]; } if (args.Length >= 3) { TableName = args[2]; } TransferTableData( Sourcedb, DestConnectionStr, TableName ); } // // Transfer data deom Access table to SQL server table. The table is asummed to be created on the sql server side. // // static void TransferTableData( String AccessSourcedb, String DestinationConnectionStr, String TableName ) { int Start = GetTickCount(); //Connection to the destination // SqlConnection DestConnection = new SqlConnection(DestinationConnectionStr); DestConnection.Open(); SqlCommand Cmd = DestConnection.CreateCommand(); //Connection to source // OleDbConnection OledbSrcConnection = new System.Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + AccessSourcedb); OledbSrcConnection.Open(); // Reader to source // OleDbCommand OleDbCommand = new OleDbCommand("SELECT * FROM " + TableName); OleDbCommand.Connection = OledbSrcConnection; OleDbDataReader OleDbDataReader = OleDbCommand.ExecuteReader(); //bulk upload to destination // SqlBulkCopy bulkCopy = new SqlBulkCopy(DestConnection, System.Data.SqlClient.SqlBulkCopyOptions.KeepIdentity,null); bulkCopy.BulkCopyTimeout = 100000000; bulkCopy.DestinationTableName = TableName; bulkCopy.WriteToServer(OleDbDataReader); int End = GetTickCount(); Console.WriteLine("all rows were uploaded in {0} miliseconds", End - Start); } [DllImportAttribute("kernel32.dll", SetLastError = true)] private static extern int GetTickCount(); static private void PrintHelp() { System.Console.WriteLine("AccessDartaTransfer.exe <AccessSourcefile> <SQL server connection string> <TableDef to transfer>"); } } } Tag: How do i bind to a collection Tag: 125778
  - 11
    - What's up with the VS.NET 2005 Dataset Designer? Why has the VS.NET 2005 dataset designer changed so much from the 2003 designer? The 2003 designer gave you so much more power over the way the dataset was represented in XML. It seems like the designer has gone to a much more Database-centric approach, rather than an XML-centric approach. While I can understand a need for this for users who use datasets as way to work with remote databases, we typically use datasets as convenient ways to store structured data on the local disk (using the ReadXml and WriteXml commands on the dataset). In our case, a traditional database is never involved. As a result it is very nice to have control over how the XML is stored. It seems like all this control has been removed or hidden from the VS.NET 2005 dataset designer. Here's what I've found: - You can no longer define if columns are stored as elements or attributes. It seems to default to elements (which result in larger XML files) - Nested elements/tables are cumbersome. You can define a nested table as a DataRelation but it requires a common key between the two tables. Seems like a foreign key in the child element is repetitive and a waste of space. In the 2003 designer you could just drag a child table unto a parent table and be done with it. - I always liked the ability to set the table primary key and have the Dataset code generator create a function called "FindByXXXX". VS.NET 2005 doesn't seem to do this when you use a dataset generated by the 2005 designer. Is there a way within VS.NET 2005 to get these features back? The 2005 XSD designer seems to still have all this, but I can't seem to find a way to convert the XSD file into a dataset. In 2003 you could right click the screen and select "Generate Dataset". Where has all this gone???? -alpha Tag: How do i bind to a collection Tag: 125777
  - 12
    - login routine with information returned from database Hi i am creating a login routine that i have overloaded and wondered how i could return some data back to my program or even if i am going about the right way of achieving what i want to do. The function takes some parameters the server name, the database, the username and the stored procedure name the other overloaded function takes the same parameters plus a password and two optional parameters for the username and password input parameters for the stored proc defaulted at @username and @password. Then the function opens a data reader using cmd.executereader if the datareader has rows then it returns true if not it returns false. It is meant to be a generic login dll for use in my apps either windows or asp. Sometimes i may need to return the full name of the user or one or two other parameters how could i do this i was thinking about having some public property's but i am unsure of how to go about setting them. I keep getting an error invalid attempt to read when no data is present. When i call dr.hasrows does this then empty my datareader i remember from my course manual that a datareader is readonly forward only? Is this a good way of doing things or have i got the idea mixed up The code is below, by the way i am coming from a predominately ASP background into .net so i know little of it really Public Overloads Function LoginCheck(ByVal Username As String, ByVal Password As String, _ ByVal Server As String, ByVal DBName As String, ByVal StoredProc As String, ByVal numReturns As Integer, Optional _ ByVal Param1 As String = "@Username", Optional ByVal Param2 As String = "@Password") As Boolean Dim conn As SqlConnection = Nothing Dim dr As SqlDataReader = Nothing Dim cmd As New SqlCommand Dim P1 As New SqlParameter(Param1, SqlDbType.VarChar) Dim P2 As New SqlParameter(Param2, SqlDbType.VarChar) Try conn = New SqlConnection("data source=" & Server & "; integrated security=true; initial catalog = " & DBName) cmd.CommandText = (StoredProc) cmd.CommandType = CommandType.StoredProcedure cmd.Connection = conn 'set up the paramaters P1.Value = Username P1.Direction = ParameterDirection.Input P2.Value = Password P2.Direction = ParameterDirection.Input cmd.Parameters.Add(P1) cmd.Parameters.Add(P2) conn.Open() dr = cmd.ExecuteReader If dr.HasRows Then Select Case numReturns Case 0 'do nothing Case 1 Return1 = dr("Fullname").ToString Case 2 End Select Return True Else Return False End If Catch ex As Exception Console.WriteLine(ex.Message) If Not dr Is Nothing Then dr.Close() End If If Not conn Is Nothing Then conn.Close() End If Finally If Not dr Is Nothing Then dr.Close() End If If Not conn Is Nothing Then conn.Close() End If End Try End Function Dim m_Return1 As String Public Property Return1() As String Get Return m_Return1 End Get Set(ByVal Value As String) m_Return1 = Value End Set End Property Tag: How do i bind to a collection Tag: 125765
  - 13
    - Data Validation and Import Strategy I would appreciate some input and advice on the following situation. I have a number of data files which I need to place the data into my database. Much of the data in the files are, of course, related and I need to validate the data before putting it into the database. An additional requirement is that I need to report what lines in these files are incorrect and kick those out with a reason. My idea is to do the following. Create a data set of the database schema, verify the data by attempting to load the data into those tables, and report any errors. Then, import the correct data into the database using bulk copy. In .net 1.1 it seemed that DataSet/DataTable couldn't handle large amounts of data, and I heard that .net 2.0 has fixed this. So, perhaps I can load all of the data into the DataSet at once, else, I can either commit data to the database X amount at a time. OR, I could validate the data, and remove the data from the DataSet. Then import all the data into the database that is valid. Does anyone see a problem with this or have a better solution? Thanks. Tag: How do i bind to a collection Tag: 125756
  - 14
    - DataBound ListBox selects first item I am fairly new at developing, but have decided to implement an application that uses a comboBox to populate a listbox, Both comboBox and ListBox are DataBound. For example: if a type of car is selected in the comboBox the list box will show that type and the user can then select from the listbox which car to look at. The problem occurs in the listBox, it selects the first item in the listbox, on Form load. I assume the selectedIndex changes while it is populating. I have tried setting the SelectedIndex to -1, but it does not appear to make any difference. Is there a way to stop the selection automatically, so that the user can make the selection. Thank you for your time Tag: How do i bind to a collection Tag: 125750
  - 15
    - SQL Syntax error I have something like that SqlCommand cmd = new SqlCommand(sqlText, connection); SqlDataReader data = cmd.Execute(); while (data.Read()) { ..do my stuff } When sqlText is invalid the error does not occur on cmd.Execute (as I would expect) but on data.Read(). Is it the correct DotNet behaviour or some stupid setup on my PC? Thanks MH Tag: How do i bind to a collection Tag: 125744
  - 16
    - Problem with ODP.Net and TNSNames I am using asp.net (Framework 1.1) with Oracle 9i and ODP.Net version 9.2.0.401. I am developing using a local copy of IIS version 5.1. When I use a connection string to connect to Oracle utilising a data source in my TNSNames.ora file initially everything is fine and I can connect without any problem. After about 2 minutes as I move from page to page and requery the database I seem to loose the connection with the error "ORA-12154: TNS:could not resolve service name". I am using the following line in my web.config file to create the connection string:- <add key="Main.ConnectionString" value="data source=dev.ora;User Id=xxxx;Password=xxxx;persist security info=false;Pooling=true;Connection Lifetime=120;Min Pool Size=0;Incr Pool Size=1;Decr Pool Size=1;Max Pool Size=20;"/> Interestingly if I change this to the relevant data source entry within my TNSNames file:- <add key="Main.ConnectionString" value="data source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=xxxxxx)(PORT=xxxx)))(CONNECT_DATA =(SERVICE_NAME = dev.xxx.xxx.xx)) );User Id=xxxx;Password=xxxx;Pooling=true;Connection Lifetime=120;Min Pool Size=0;Incr Pool Size=1;Decr Pool Size=1;Max Pool Size=20;"/> Then I do not have any problems. I would prefer to use TNSNames rather than entering the datasource directly. Has anyone any ideas why I loose the connection? Tag: How do i bind to a collection Tag: 125743
  - 17
    - newbie: why does DataSet AutoIncrement advance by 2? I create a DataSet called database and add a table to it as shown below. Why does the AutoIncrement value advance by 2 every time I add a record? How do I get it to advance by 1? DataTable tblProject = database.Tables.Add("TableProject"); DataColumn project_ID = tblProject.Columns.Add("Project_ID", typeof(Int32)); project_ID.AllowDBNull = false; project_ID.Unique = true; project_ID.AutoIncrement = true; project_ID.AutoIncrementSeed = 1; project_ID.AutoIncrementStep = 1; tblProject.PrimaryKey = new DataColumn[] { tblProject.Columns[0] }; //other columns added here... Tag: How do i bind to a collection Tag: 125738
  - 18
    - Internal .Net Framework Data Provider error 12 Hi NG, i use the oldedbExecuteReader Method on an Access DB and get a System.InvalidOperationException with the message :"Internal .Net Framework Data Provider error 12" Do anybody now what the framework will tell me ? I cant't find a desciption of the error. The error ocurs sometimes and somitimes not. Thanks Maik Tag: How do i bind to a collection Tag: 125737
  - 19
    - .net and DB Data layer : Best Practice I am converting an app. from PHP to .net. I know that you can create an xsd and then have the system generate code to load data into a dataset. I assume that you use this and an a data adapter to talk to the DB. However, is this the "optimal" or recommended way to add, update, etc. information? Or should one create code to accept the data and then pass it to a stored procedure? I do not dislike the adapter way, but I can see that it could introduce problems and the programmer can loose control which may cause errors or data integrity violations. Comments? Thanks Tag: How do i bind to a collection Tag: 125728
  - 20
    - Sychronize Key between Database and Dataset on Insert Hi, I'm sure this has been asked many times before, but I haven't had a lot luck finding an answer; not googling the question right. So I apologize before hand. I have a TableAdapter whose insert command uses a store procedure. When I call TableAdapter.Update() passing in the table the database gets updated, but the primary key in of the DataTable doesn't match the one in the database. I've read some responses about selecting the "Refresh Dataset" option under Advanced Options in the Dataset Designer, but I only see that option when using a SQL statement and not a stored procedure. I prefer to ues the stored procedures. Is there an option I can configure on the TableAdapter that I missed? What's the simplient way to handle this? Cheers, Aeden Tag: How do i bind to a collection Tag: 125724
  - 21
    - Search button to filter a Dataset Hi all, I hope someone can help with this relatively simple problem. I am building a timesheet application using ASP.NET C# with Visual Studio 2003.As it is only a protoype application, my database has been made in MSDE. I have a 'View Resources' page, the purpose of which is to show all employees, taken from that table in the database. This works fine, up to a point. I have a DataGrid, which is done with a DataSet and a DataAdapter. I now want the user to be able to 'filter' the DataGrid, using a text box for input, and a 'search' button. I have tried different ways of doing this but can't get it to work. I imagine that it is achieved by running some kind of different SQL statement (with a % LIKE % operator) in the btnSearch_Click method, and re-binding the Data Grid after the filter has finished. So for example the user could enter 'John' in the 'First Name' text box and click 'search', and the Data Grid would refresh accordingly with all records LIKE 'John'. My Page_Load code looks like this currently ------------------------------------------------------------------------- this.sqlDataAdapter1.Fill(this.dsResources1); DataGrid1.DataBind(); sqlConnection2.Close(); this.DataGrid1.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.GridPageIndexChanged); -------------------------------------------------------------------------------------------- Hope someone can help, I'm sure the btnSearch_Click method is where I need to put the code. Thanks in advance, Al Tag: How do i bind to a collection Tag: 125717
  - 22
    - OutOfMemoryException on DataTables Hi, In my application I have text(flat) file as input and I have to generate an XML file. The maximum input text file size can be 900MB and gererated xml may result 2+ GB. Based on the first column value from the text file, the row will be moved to any of those 23 DataTable which are created onfly. For eg. 01;- data for Table 1- 02;- data for Table 2- 03;- data for Table 3- 04;- data for Table 4- 04;- data for Table 4- 04;- data for Table 4- 04;- data for Table 4- 04;- data for Table 4- Based on the child relation, I have to create XML node, after stripping the parent-child relation column. I am using XmlTextWriter to write the xml data, which are fetched from tables based on select with different condition. The server uses 2GB RAM memory When the application process a 500MB file, it throws OutOfMemoryException. In the task manager, the utilised memory when the system throws OutOfMemoryException is 2.15 GB. But in my desktop, for the surprise, the system has 512 MB and when I load several application, the process memory reached 1GB without any OutOfMemoryException issues. Can you one help me in this regard. Thanks in advance With Regards venkatg Tag: How do i bind to a collection Tag: 125710
  - 23
    - GridView and reader source Hi, I can give a DataTable to gridview and in one line data are displayed int the gridview using : dgvEmployee.DataSource = myDataTable.; When I use a dataReader instead, do "dgvEmployee.DataSource = myReader;", nothing is displayed in the gridview. Does that mean that GridView dosnt or can not bind to a data reader Thanks for your help Tag: How do i bind to a collection Tag: 125708
  - 24
    - DataAdapter + DataRow + Inserting a record ########################################################################### private void btnAdd_Click(object sender, System.EventArgs e) { OleDbConnection con = new OleDbConnection(str); con.Open(); string qry = "select * from t_contact"; OleDbDataAdapter da = new OleDbDataAdapter(qry,con); DataSet ds = new DataSet(); da.Fill(ds,"t_contact"); DataTable dt = new DataTable(); dt = ds.Tables["t_contact"]; DataRow dr ; dr = dt.NewRow(); dr["FirstName"] = txtFirstName.Text; dr["LastName"] = txtLastName.Text; dr["E-Mail"] = txtEMail.Text; dr["PhoneNumber"] = txtPhoneNumber.Text; ds.Tables["t_contact"].Rows.Add(dr); textBox2.Text = ds.GetXml(); da.Update(ds,"t_contact"); } ########################################################################### __________________________________________________________ here e-mail is the primary key.Unable to insert record in the database. __________________________________________________________ The error coming is : System.Data.OleDb.OleDbException: Syntax error in INSERT INTO statement. at System.Data.Common.DbDataAdapter.Update(DataRow[] dataRows, DataTableMapping tableMapping) at System.Data.Common.DbDataAdapter.Update(DataSet dataSet, String srcTable) at Contact_new.Form1.btnAdd_Click(Object sender, EventArgs e) in c:\documents and settings\administrator\my documents\visual studio projects\projects\contact_new\form1.cs:line 234 Tag: How do i bind to a collection Tag: 125701
  - 25
    - Typed datasets 3-tier application We are in the middle of a project that requires both a web GUI and web services. We have elected to go with a 3-tier (data, business, presentation) model using typed datasets as the data layer. We are not using either the sql data source or the object data source on the page, just rolling our own, old school style. The customer(s) will are all business partners with reliable and fast connects and there is no expectation of ever having a consumer direct option. We are posting this since we have been unable to find any real examples of this type of implementation and are looking for help in poking / filling the holes. Who knows you may be looking for an example, so here goes..... Data Layer Straight vs2005 generated typed datasets for all updatable data access. For read only reporting and display data access we will use untyped datasets. We have not had much success with data readers so we will shy away from them if possible. You can generate a strongly typed dataset so we won't bore you with the details. Business layer Accepts requests from pres layer or web service layer and interacts with the data layer. Any necessary validation, conditional enforcement, or other business logic is checked / applied. In many cases this is just a pass through if we have done a good job with required fields, getting and setting nulls for value types, and client side validation. In others, especially calls from the web services, there will be a bit of processing going on in the Biz obj. This layer is not creating a business object from the typed dataset, only interacting with the datasets as they pass through. Presentation layer Is "Aware" of the typed datasets, but has no idea where they come from, and is limited to reading data from them and plugging data into them. All data access must go through the biz layer, even if just a pass through or simple lookup. The pages are smart enough to do most of the required field checking and input validation, however any conditional biz logic or other complex enforcement is left to the biz object. We are currently storing the typed datasets in the viewstate. As mentioned before the users all have reliable connectivity. We don't load any data that we are not willing to put on the page so there are no data security issues. All of our updatable datasets are dealing with 1 or 2 rows data so they don't really bloat the viewstate all that badly. We have implemented several pages and so far it seems to be working. The typed dataset is living up to the billing of reducing both design and run time errors due to the increased use of intellisense. The performance so far is great and we are already reaping the benefits of reusable code blocks, both in the data and biz layers. So there it is - shoot it down before it multiplies. We think we are on the right track - but since we built the track - what else would we think? I would be glad to provide some code samples upon request Thanks in advance. Tag: How do i bind to a collection Tag: 125697
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    - Dynamic SQL generation is not supported against a SelectCommand that does not return any base table information Hi, I have data access tier designed in such a way, just by changnging application settings, same lines of code is made to work with both MS SQL Server or MS Access. Code works fine with MS SQL Server. however while executing following code lines on MS Acess ds = new DataSet(); oAdapter.SelectCommand.CommandText = this.SelectCommand; oAdapter.SelectCommand.Connection = oConn; if (idbType == (int) ApplicationConstants.DBType.SQLServer) { oAdapter.DeleteCommand = sqlCommandBuilder.GetDeleteCommand(); oAdapter.InsertCommand = sqlCommandBuilder.GetInsertCommand(); oAdapter.UpdateCommand = sqlCommandBuilder.GetUpdateCommand(); } else if (idbType == (int) ApplicationConstants.DBType.Access) { oAdapter.DeleteCommand = oleCommandBuilder.GetDeleteCommand(); oAdapter.InsertCommand = oleCommandBuilder.GetInsertCommand(); oAdapter.UpdateCommand = oleCommandBuilder.GetUpdateCommand(); } return oAdapter.Fill(ds); It throws out the following error System.InvalidOperationException was unhandled Message="Dynamic SQL generation is not supported against a SelectCommand that does not return any base table information." But i have defined primary keys on all tables in Access databasel, just like what i have in MS Sql database. Just to avoid this error i can not use explict Insert, Delete or Update command for Adapter as the same lines of code (above) has to work with 15 diff tables. Any suggestions to this? Thanks & Regards Ganesh Tag: How do i bind to a collection Tag: 125691
  - 2
    - Problem in database updation through Adapter in VB.Net.. Hi Friends, I am new to .Net. So I don't know much. I am facing a problem in updating database through ADO.Net I am creating the dataset and there is no problem in the updation and deletion or insertion in the dataset but when I am updating the database through adaptor error occures (Coloured Red). For ref the code follows: Code: Imports System.Data.OleDb Module Module1 Private Const s As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\Rabi\Database\DBTest-1.mdb;Persist Security Info=False" Public Con As OleDb.OleDbConnection Public adopt As OleDb.OleDbDataAdapter Public ds As DataSet Public sql As String Dim cmdDel As New OleDb.OleDbCommand, sDelSql As String Dim cmdIns As New OleDb.OleDbCommand, sInsSql As String Dim cmdUpd As New OleDb.OleDbCommand, sUpdSql As String Dim Param As New OleDb.OleDbParameter Public Sub Display(ByRef Table As DataTable) Dim row As DataRow Dim col As DataColumn Dim i, j As Integer For i = 0 To Table.Rows.Count - 1 row = Table.Rows(i) Select Case row.RowState Case DataRowState.Deleted Console.WriteLine("[Deleted]") Case DataRowState.Modified Console.WriteLine("[Modified]") Case DataRowState.Added Console.WriteLine("[Added]") Case DataRowState.Unchanged Console.WriteLine("[Unchanged]") End Select For j = 0 To Table.Columns.Count - 1 If row.RowState <> DataRowState.Deleted Then Console.WriteLine("{0}", row.Item(j)) End If Next Console.WriteLine() Next End Sub Public Sub Main() Try Con = New OleDb.OleDbConnection(s) sql = "Select * from Artist" adopt = New OleDbDataAdapter(sql, Con) ds = New DataSet Catch ex As Exception Console.WriteLine(ex.ToString) Console.ReadLine() End Try sDelSql = "Delete From Artist Where Id = ?" cmdDel.Connection = Con cmdDel.CommandText = sDelSql Param = cmdDel.Parameters.Add("Id", OleDb.OleDbType.Integer) Param.SourceColumn = "@ID" Param.SourceVersion = DataRowVersion.Original adopt.DeleteCommand = cmdDel sUpdSql = "Update Artist Set Name = ? Where Id = ?" cmdUpd.Connection = Con cmdUpd.CommandText = sUpdSql Param = cmdUpd.Parameters.Add("Name", OleDb.OleDbType.Char) Param.SourceColumn = "@Name" Param.SourceVersion = DataRowVersion.Current Param = cmdUpd.Parameters.Add("Id", OleDb.OleDbType.Integer) Param.SourceColumn = "@Id" Param.SourceVersion = DataRowVersion.Original adopt.UpdateCommand = cmdUpd sInsSql = "Insert Into Artist (Id,Name) Values(?,?)" cmdIns.Connection = Con cmdIns.CommandText = sInsSql Param = cmdIns.Parameters.Add("Id", OleDb.OleDbType.Integer) Param.SourceColumn = "@Id" Param.SourceVersion = DataRowVersion.Current Param = cmdIns.Parameters.Add("Name", OleDb.OleDbType.Char) Param.SourceColumn = "@Name" Param.SourceVersion = DataRowVersion.Current adopt.UpdateCommand = cmdIns Try Con.Open() If Con.State = ConnectionState.Open Then adopt.MissingSchemaAction = MissingSchemaAction.AddWithKey adopt.Fill(ds, "Artist") Con.Close() Dim Tables As DataTableCollection Dim Table As DataTable Dim Cols As DataColumnCollection Dim Col As DataColumn Dim Rows As DataRowCollection Dim Row As DataRow Tables = ds.Tables Table = Tables("Artist") Rows = Table.Rows Cols = Table.Columns Console.WriteLine("Original Table Looks Like") Display(Table) Console.ReadLine() Console.WriteLine("Id 1 delete") Rows.Find(1).Delete() Console.WriteLine("deleted") Display(Table) Console.ReadLine() Console.WriteLine("Id 2 Modify") Row = Rows.Find(2) Row.BeginEdit() Row("Name") = "Mantu" Row.EndEdit() Console.WriteLine("Updated") Display(Table) Console.ReadLine() Console.WriteLine("Id 1 Add") Row = Table.NewRow Row("Id") = 4 Row("Name") = "Deepak" Rows.Add(Row) Console.WriteLine("Added") Display(Table) Console.ReadLine() Con.Open() adopt.Update(ds, "Artist") Console.WriteLine("Done") End If Catch ex As Exception Console.WriteLine(ex.ToString) Console.ReadLine() End Try End Sub End Module The Exact error what I got is : "System.Data.OleDb.OleDbException: Parameter ?_1 has no default value. at System.Data.Common.DbDataAdapter.Update(DataRow[] dataRows, DataTableMapping tableMapping) at System.Data.Common.DbDataAdapter.Update(DataSet dataSet, String srcTable) at ADONetTest.Module1.Main() in D:\Rabi\DotNetPrac\ADONetTest\ADONetTest\Module1.vb:line 176" This String is generated by "Ex.ToString" Tag: How do i bind to a collection Tag: 125689
  - 3
    - Problem in database updation through Adapter in VB.Net.. Hi Friends, I am new to .Net. So I don't know much. I am facing a problem in updating database through ADO.Net I am creating the dataset and there is no problem in the updation and deletion or insertion in the dataset but when I am updating the database through adaptor error occures (Coloured Red). For ref the code follows: Code: Imports System.Data.OleDb Module Module1 Private Const s As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\Rabi\Database\DBTest-1.mdb;Persist Security Info=False" Public Con As OleDb.OleDbConnection Public adopt As OleDb.OleDbDataAdapter Public ds As DataSet Public sql As String Dim cmdDel As New OleDb.OleDbCommand, sDelSql As String Dim cmdIns As New OleDb.OleDbCommand, sInsSql As String Dim cmdUpd As New OleDb.OleDbCommand, sUpdSql As String Dim Param As New OleDb.OleDbParameter Public Sub Display(ByRef Table As DataTable) Dim row As DataRow Dim col As DataColumn Dim i, j As Integer For i = 0 To Table.Rows.Count - 1 row = Table.Rows(i) Select Case row.RowState Case DataRowState.Deleted Console.WriteLine("[Deleted]") Case DataRowState.Modified Console.WriteLine("[Modified]") Case DataRowState.Added Console.WriteLine("[Added]") Case DataRowState.Unchanged Console.WriteLine("[Unchanged]") End Select For j = 0 To Table.Columns.Count - 1 If row.RowState <> DataRowState.Deleted Then Console.WriteLine("{0}", row.Item(j)) End If Next Console.WriteLine() Next End Sub Public Sub Main() Try Con = New OleDb.OleDbConnection(s) sql = "Select * from Artist" adopt = New OleDbDataAdapter(sql, Con) ds = New DataSet Catch ex As Exception Console.WriteLine(ex.ToString) Console.ReadLine() End Try sDelSql = "Delete From Artist Where Id = ?" cmdDel.Connection = Con cmdDel.CommandText = sDelSql Param = cmdDel.Parameters.Add("Id", OleDb.OleDbType.Integer) Param.SourceColumn = "@ID" Param.SourceVersion = DataRowVersion.Original adopt.DeleteCommand = cmdDel sUpdSql = "Update Artist Set Name = ? Where Id = ?" cmdUpd.Connection = Con cmdUpd.CommandText = sUpdSql Param = cmdUpd.Parameters.Add("Name", OleDb.OleDbType.Char) Param.SourceColumn = "@Name" Param.SourceVersion = DataRowVersion.Current Param = cmdUpd.Parameters.Add("Id", OleDb.OleDbType.Integer) Param.SourceColumn = "@Id" Param.SourceVersion = DataRowVersion.Original adopt.UpdateCommand = cmdUpd sInsSql = "Insert Into Artist (Id,Name) Values(?,?)" cmdIns.Connection = Con cmdIns.CommandText = sInsSql Param = cmdIns.Parameters.Add("Id", OleDb.OleDbType.Integer) Param.SourceColumn = "@Id" Param.SourceVersion = DataRowVersion.Current Param = cmdIns.Parameters.Add("Name", OleDb.OleDbType.Char) Param.SourceColumn = "@Name" Param.SourceVersion = DataRowVersion.Current adopt.UpdateCommand = cmdIns Try Con.Open() If Con.State = ConnectionState.Open Then adopt.MissingSchemaAction = MissingSchemaAction.AddWithKey adopt.Fill(ds, "Artist") Con.Close() Dim Tables As DataTableCollection Dim Table As DataTable Dim Cols As DataColumnCollection Dim Col As DataColumn Dim Rows As DataRowCollection Dim Row As DataRow Tables = ds.Tables Table = Tables("Artist") Rows = Table.Rows Cols = Table.Columns Console.WriteLine("Original Table Looks Like") Display(Table) Console.ReadLine() Console.WriteLine("Id 1 delete") Rows.Find(1).Delete() Console.WriteLine("deleted") Display(Table) Console.ReadLine() Console.WriteLine("Id 2 Modify") Row = Rows.Find(2) Row.BeginEdit() Row("Name") = "Mantu" Row.EndEdit() Console.WriteLine("Updated") Display(Table) Console.ReadLine() Console.WriteLine("Id 1 Add") Row = Table.NewRow Row("Id") = 4 Row("Name") = "Deepak" Rows.Add(Row) Console.WriteLine("Added") Display(Table) Console.ReadLine() Con.Open() adopt.Update(ds, "Artist") Console.WriteLine("Done") End If Catch ex As Exception Console.WriteLine(ex.ToString) Console.ReadLine() End Try End Sub End Module The Exact error what I got is : "System.Data.OleDb.OleDbException: Parameter ?_1 has no default value. at System.Data.Common.DbDataAdapter.Update(DataRow[] dataRows, DataTableMapping tableMapping) at System.Data.Common.DbDataAdapter.Update(DataSet dataSet, String srcTable) at ADONetTest.Module1.Main() in D:\Rabi\DotNetPrac\ADONetTest\ADONetTest\Module1.vb:line 176" This String is generated by "Ex.ToString" Tag: How do i bind to a collection Tag: 125688
  - 4
    - Problem with ADO.NET and dao pia in the same project I have a wierd problem working with ADO.NET and DAO PIA in the same project - it seems that ADO.NET is causing the DAO objects to be destructed. Once I open ADO.NET connection, the DAO objecucts seems destructed (at least thier native part) and I get Unhandled Exception: System.Runtime.InteropServices.COMException (0x800A0D5C): O bject invalid or no longer set. The funny thing about it is that it happened only in release build when run outside of the VS 2005 IDE. The repro code is below. Any idea how to work around this problem ? Thanks, Einat using System; using System.Text; using dao; using System.Data; using System.Data.SqlClient; using System.Runtime.InteropServices; namespace AccessDataTransfer { class Program { static void Main(string[] args) { String Sourcedbstr = "c:\\1.mdb"; String DestConnectionStr = @"Data Source=localhost;Integrated Security=SSPI;Initial Catalog=pubs"; String TableName = "Foo"; //dao connection dao.DBEngineClass engineClass = new DBEngineClass(); dao.Workspace workSpace = engineClass.CreateWorkspace("WorkSpace", "Admin", "", WorkspaceTypeEnum.dbUseJet); dao.Database Sourcedb = workSpace.OpenDatabase(Sourcedbstr, Type.Missing, true, null); dao.Recordset SourceRecordSet = Sourcedb.OpenRecordset(TableName, Type.Missing, Type.Missing, Type.Missing); //ADO.NET connection that invalidate the DAO objects SqlConnection DestConnection = new SqlConnection(DestConnectionStr); DestConnection.Open(); Now manipulate dao object and fails TableDef tblDef = Sourcedb.TableDefs[TableName]; //fails here } } } Tag: How do i bind to a collection Tag: 125687
  - 5
    - Bypass ADO Hi all, out of curiosity, is there a way to bypass ADO completely and talk directly to SQL Server? Do I have to step in the unmanaged world or can I still achieve it from C#? Thanks, Lorenzo Tag: How do i bind to a collection Tag: 125681
  - 6
    - Using Widows Authentication and accesssing SQL with SQL Authentication Hi I am working on an application with .NET 2005 and SQL server 2000. I am using windows authentication for my web application authentication and trying to connect to the SQL server with SQL authentication credentials. My web.config reads as follows: web application Authentication: <authentication mode="Windows" /> <authorization> <allow users="*" />   </authorization> <identity impersonate="true" /> SQL Authentication: <connectionStrings> <add name="DevDBConnection" connectionString="Server=MyServer;database=MyDB;uid=MyUser;pwd=MyPwd;" providerName="System.Data.SqlClient" /> </connectionStrings> MY IIS directory security is set to "Integrated Windows authentication". I am validating the user againt the Active Directory for authentication and reading the user details and groups which works fine. But trying to open a connection object fails. I am getting a "{"Cannot open database requested in login 'MyDB'. Login fails.\r\nLogin failed for user 'MyUser'."}" I have tried searching for a solution to my best, but could not solve this problem. I hope some one might have come accross the same problem ahd looking forward for your help. Thanks, Valar Tag: How do i bind to a collection Tag: 125676
  - 7
    - tranferring data from Access to SQL Server Express I created a VB.Net 1.1 application that iterates through all the tables in any basic Access 2000 database passed to it and generates the same table structure in a SQL Server Express database. The structure is created fine (with minor data conversions from one to the other, e.g. yes/no --> bit, memo --> text, etc). My problem now is transferring the data over from Access to SQL Server. I thought it would be a fairly straight forward process, but I don't think I thought it through that well, unless I am missing something. I currently have the code retrieving a DataTable object from Access one at a time. The only way I can think of now to get the data into SQL Server is to create a DataAdapter for each table in SQL Server and create an InsertCommand for each of adapters. This will involve iterating through all the columns of each table, determing their data types and length, and then adding the parameters. Is this what I have to do, or is there a shorter method? Perhaps dump the Access table to a file and then use bulk import utility (bcp) for example??? Hmmm... Thanks for any help, Marcus *** Please respond to this group. I do not check this email address *** Tag: How do i bind to a collection Tag: 125675
  - 8
    - Strongly Typed Dataset (1.1) and DataRelation for Navigation Only I am trying to create a strongly typed dataset in .NET 1.1 and am having a problem with adding relations via the design time XSD editor. When you generate a relation at runtime, you have the option of specifying "createConstriants". Normally I would want to have constraints on a relationship, but I am working on a dataset where I only need it for navigation. I can't create a relation with the designer that does not enforce them. Any one know how to do this? Thanks, Eric Marvets MVP - Developer Security Tag: How do i bind to a collection Tag: 125656
  - 9
    - ORA-01460: unimplemented or unreasonable conversion requested Hi All, We are currently getting a following error ORA-01460: unimplemented or unreasonable conversion requested When we try to insert a double-byte character from our ASP.Net application through ODP.Net version 9. We have our server setting for UTF 8 encoding. This works when we insert diretly through a query or executing the stored proc with the same value using the backend. But the above error is trigerred when we try to do the insert through the ODP Parameter. The Datatype we tried include NVarchar2 and Varchar2. Note: We have made this work by passing datatype as NClob. Like to more information about this error and how to solve it? Regards, Syed. Tag: How do i bind to a collection Tag: 125649
  - 10
    - Must declare the scalar variable "@" - paramaterized sqlclient insert - HELP!! Below is my code, the error occurs when it is executed. I don't quite understand it; What am I doing wrong? Sub insertADRecords(ByVal oEntry As SearchResult) Dim iIndex1 As Integer Dim strSql, strDN, strProxyAdd, strProxy(), strMyString As String, rowsAffected As Integer strSql = "INSERT INTO Tradoc.dbo.CurrAD (objclass, cn, mailnickname, targetAddress, proxyAddresses, displayname, givenName,initials,sn,title,telephoneNumber,company,department,physicalDeliveryOfficeName,l,st,postalcode, co,adspath) VALUES (@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@))" Dim sqlCMD As SqlClient.SqlCommand = New SqlCommand(strSql, sqlConnection) 'sqlCMD.Connection() = sqlConnection sqlCMD.CommandType = CommandType.Text writeLog(strSql) 'Dim oResult As SearchResult Dim item, strtemp As String sqlCMD.Parameters.Add(New SqlParameter("@objclass", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@cn", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@mailnickname", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@targetAddress", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@proxyAddresses", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@displayName", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@givenName", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@initials", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@sn", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@title", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@telephoneNumber", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@company", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@department", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@physicalDeliveryOfficeName", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@l", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@st", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@postalcode", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@co", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@adspath", SqlDbType.VarChar, 400)) '*********************************************************** sqlCMD.Parameters("@objclass").Value = "contact" Try sqlCMD.Parameters("@cn").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("cn")(0)))) Catch ex As Exception sqlCMD.Parameters("@cn").Value = "" End Try Try sqlCMD.Parameters("@mailnickname").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("mailnickname")(0)))) Catch ex As Exception sqlCMD.Parameters("@targetAddress").Value = "" End Try Try sqlCMD.Parameters("@targetAddress").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("targetAddress")(0)))) Catch ex As Exception sqlCMD.Parameters("@targetAddress").Value = "" End Try Try sqlCMD.Parameters("@proxyAddresses").Value() = Convert.ToString(oEntry.Properties("proxyAddresses")(0)) Catch ex As Exception sqlCMD.Parameters("@proxyAddresses").Value() = "" End Try Try sqlCMD.Parameters("@displayName").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("displayName")(0)))) Catch ex As Exception sqlCMD.Parameters("@displayName").Value() = "" End Try Try sqlCMD.Parameters("@givenName").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("givenName")(0)))) Catch ex As Exception sqlCMD.Parameters("@givenName").Value = "" End Try Try sqlCMD.Parameters("@initials").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("initials")(0)))) Catch ex As Exception sqlCMD.Parameters("@initials").Value = "" End Try Try sqlCMD.Parameters("@sn").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("sn")(0)))) Catch ex As Exception sqlCMD.Parameters("@sn").Value = "" End Try Try sqlCMD.Parameters("@title").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("title")(0)))) Catch ex As Exception sqlCMD.Parameters("@title").Value = "" End Try Try sqlCMD.Parameters("@telephoneNumber").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("telephoneNumber")(0)))) Catch ex As Exception sqlCMD.Parameters("@telephoneNumber").Value = "" End Try Try sqlCMD.Parameters("@company").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("company")(0)))) Catch ex As Exception sqlCMD.Parameters("@company").Value = "" End Try Try sqlCMD.Parameters("@department").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("department")(0)))) Catch ex As Exception sqlCMD.Parameters("@department").Value = "" End Try Try sqlCMD.Parameters("@physicalDeliveryOfficeName").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("physicalDeliveryOfficeName")(0)))) Catch ex As Exception sqlCMD.Parameters("@physicalDeliveryOfficeName").Value = "" End Try Try sqlCMD.Parameters("@l").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("l")(0)))) Catch ex As Exception sqlCMD.Parameters("@l").Value = "" End Try Try sqlCMD.Parameters("@st").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("st")(0)))) Catch ex As Exception sqlCMD.Parameters("@st").Value = "" End Try Try sqlCMD.Parameters("@postalcode").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("postalcode")(0)))) Catch ex As Exception sqlCMD.Parameters("@postalcode").Value = "" End Try Try sqlCMD.Parameters("@co").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("co")(0)))) Catch ex As Exception sqlCMD.Parameters("@co").Value = "" End Try sqlCMD.Parameters("@adspath").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("adspath")(0)))) If sqlConnection.State = ConnectionState.Closed Then sqlConnection.Open() End If Try 'Here's where the error occurs, of course... rowsAffected = sqlCMD.ExecuteNonQuery() Catch ex As Exception writeLog(ex.Message) End Try sqlCMD.Dispose() End Sub Tag: How do i bind to a collection Tag: 125646
  - 11
    - Must declare the scalar variable "@" - paramaterized sqlclient insert - HELP!! Below is my code, the error occurs when it is executed. I don't quite understand it; What am I doing wrong? Sub insertADRecords(ByVal oEntry As SearchResult) Dim iIndex1 As Integer Dim strSql, strDN, strProxyAdd, strProxy(), strMyString As String, rowsAffected As Integer strSql = "INSERT INTO Tradoc.dbo.CurrAD (objclass, cn, mailnickname, targetAddress, proxyAddresses, displayname, givenName,initials,sn,title,telephoneNumber,company,department,physicalDeliveryOfficeName,l,st,postalcode, co,adspath) VALUES (@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@))" Dim sqlCMD As SqlClient.SqlCommand = New SqlCommand(strSql, sqlConnection) 'sqlCMD.Connection() = sqlConnection sqlCMD.CommandType = CommandType.Text writeLog(strSql) 'Dim oResult As SearchResult Dim item, strtemp As String sqlCMD.Parameters.Add(New SqlParameter("@objclass", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@cn", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@mailnickname", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@targetAddress", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@proxyAddresses", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@displayName", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@givenName", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@initials", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@sn", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@title", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@telephoneNumber", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@company", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@department", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@physicalDeliveryOfficeName", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@l", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@st", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@postalcode", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@co", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@adspath", SqlDbType.VarChar, 400)) '*********************************************************** sqlCMD.Parameters("@objclass").Value = "contact" Try sqlCMD.Parameters("@cn").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("cn")(0)))) Catch ex As Exception sqlCMD.Parameters("@cn").Value = "" End Try Try sqlCMD.Parameters("@mailnickname").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("mailnickname")(0)))) Catch ex As Exception sqlCMD.Parameters("@targetAddress").Value = "" End Try Try sqlCMD.Parameters("@targetAddress").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("targetAddress")(0)))) Catch ex As Exception sqlCMD.Parameters("@targetAddress").Value = "" End Try Try sqlCMD.Parameters("@proxyAddresses").Value() = Convert.ToString(oEntry.Properties("proxyAddresses")(0)) Catch ex As Exception sqlCMD.Parameters("@proxyAddresses").Value() = "" End Try Try sqlCMD.Parameters("@displayName").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("displayName")(0)))) Catch ex As Exception sqlCMD.Parameters("@displayName").Value() = "" End Try Try sqlCMD.Parameters("@givenName").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("givenName")(0)))) Catch ex As Exception sqlCMD.Parameters("@givenName").Value = "" End Try Try sqlCMD.Parameters("@initials").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("initials")(0)))) Catch ex As Exception sqlCMD.Parameters("@initials").Value = "" End Try Try sqlCMD.Parameters("@sn").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("sn")(0)))) Catch ex As Exception sqlCMD.Parameters("@sn").Value = "" End Try Try sqlCMD.Parameters("@title").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("title")(0)))) Catch ex As Exception sqlCMD.Parameters("@title").Value = "" End Try Try sqlCMD.Parameters("@telephoneNumber").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("telephoneNumber")(0)))) Catch ex As Exception sqlCMD.Parameters("@telephoneNumber").Value = "" End Try Try sqlCMD.Parameters("@company").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("company")(0)))) Catch ex As Exception sqlCMD.Parameters("@company").Value = "" End Try Try sqlCMD.Parameters("@department").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("department")(0)))) Catch ex As Exception sqlCMD.Parameters("@department").Value = "" End Try Try sqlCMD.Parameters("@physicalDeliveryOfficeName").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("physicalDeliveryOfficeName")(0)))) Catch ex As Exception sqlCMD.Parameters("@physicalDeliveryOfficeName").Value = "" End Try Try sqlCMD.Parameters("@l").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("l")(0)))) Catch ex As Exception sqlCMD.Parameters("@l").Value = "" End Try Try sqlCMD.Parameters("@st").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("st")(0)))) Catch ex As Exception sqlCMD.Parameters("@st").Value = "" End Try Try sqlCMD.Parameters("@postalcode").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("postalcode")(0)))) Catch ex As Exception sqlCMD.Parameters("@postalcode").Value = "" End Try Try sqlCMD.Parameters("@co").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("co")(0)))) Catch ex As Exception sqlCMD.Parameters("@co").Value = "" End Try sqlCMD.Parameters("@adspath").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("adspath")(0)))) If sqlConnection.State = ConnectionState.Closed Then sqlConnection.Open() End If Try 'Here's where the error occurs, of course... rowsAffected = sqlCMD.ExecuteNonQuery() Catch ex As Exception writeLog(ex.Message) End Try sqlCMD.Dispose() End Sub Tag: How do i bind to a collection Tag: 125645
  - 12
    - Must declare the scalar variable "@" - paramaterized sqlclient insert Below is my code, the error occurs when it is executed. I don't quite understand it; What am I doing wrong? Sub insertADRecords(ByVal oEntry As SearchResult) Dim iIndex1 As Integer Dim strSql, strDN, strProxyAdd, strProxy(), strMyString As String, rowsAffected As Integer strSql = "INSERT INTO Tradoc.dbo.CurrAD (objclass, cn, mailnickname, targetAddress, proxyAddresses, displayname, givenName,initials,sn,title,telephoneNumber,company,department,physicalDeliveryOfficeName,l,st,postalcode, co,adspath) VALUES (@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@))" Dim sqlCMD As SqlClient.SqlCommand = New SqlCommand(strSql, sqlConnection) 'sqlCMD.Connection() = sqlConnection sqlCMD.CommandType = CommandType.Text writeLog(strSql) 'Dim oResult As SearchResult Dim item, strtemp As String sqlCMD.Parameters.Add(New SqlParameter("@objclass", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@cn", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@mailnickname", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@targetAddress", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@proxyAddresses", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@displayName", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@givenName", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@initials", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@sn", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@title", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@telephoneNumber", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@company", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@department", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@physicalDeliveryOfficeName", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@l", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@st", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@postalcode", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@co", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@adspath", SqlDbType.VarChar, 400)) '*********************************************************** sqlCMD.Parameters("@objclass").Value = "contact" Try sqlCMD.Parameters("@cn").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("cn")(0)))) Catch ex As Exception sqlCMD.Parameters("@cn").Value = "" End Try Try sqlCMD.Parameters("@mailnickname").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("mailnickname")(0)))) Catch ex As Exception sqlCMD.Parameters("@targetAddress").Value = "" End Try Try sqlCMD.Parameters("@targetAddress").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("targetAddress")(0)))) Catch ex As Exception sqlCMD.Parameters("@targetAddress").Value = "" End Try Try sqlCMD.Parameters("@proxyAddresses").Value() = Convert.ToString(oEntry.Properties("proxyAddresses")(0)) Catch ex As Exception sqlCMD.Parameters("@proxyAddresses").Value() = "" End Try Try sqlCMD.Parameters("@displayName").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("displayName")(0)))) Catch ex As Exception sqlCMD.Parameters("@displayName").Value() = "" End Try Try sqlCMD.Parameters("@givenName").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("givenName")(0)))) Catch ex As Exception sqlCMD.Parameters("@givenName").Value = "" End Try Try sqlCMD.Parameters("@initials").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("initials")(0)))) Catch ex As Exception sqlCMD.Parameters("@initials").Value = "" End Try Try sqlCMD.Parameters("@sn").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("sn")(0)))) Catch ex As Exception sqlCMD.Parameters("@sn").Value = "" End Try Try sqlCMD.Parameters("@title").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("title")(0)))) Catch ex As Exception sqlCMD.Parameters("@title").Value = "" End Try Try sqlCMD.Parameters("@telephoneNumber").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("telephoneNumber")(0)))) Catch ex As Exception sqlCMD.Parameters("@telephoneNumber").Value = "" End Try Try sqlCMD.Parameters("@company").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("company")(0)))) Catch ex As Exception sqlCMD.Parameters("@company").Value = "" End Try Try sqlCMD.Parameters("@department").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("department")(0)))) Catch ex As Exception sqlCMD.Parameters("@department").Value = "" End Try Try sqlCMD.Parameters("@physicalDeliveryOfficeName").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("physicalDeliveryOfficeName")(0)))) Catch ex As Exception sqlCMD.Parameters("@physicalDeliveryOfficeName").Value = "" End Try Try sqlCMD.Parameters("@l").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("l")(0)))) Catch ex As Exception sqlCMD.Parameters("@l").Value = "" End Try Try sqlCMD.Parameters("@st").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("st")(0)))) Catch ex As Exception sqlCMD.Parameters("@st").Value = "" End Try Try sqlCMD.Parameters("@postalcode").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("postalcode")(0)))) Catch ex As Exception sqlCMD.Parameters("@postalcode").Value = "" End Try Try sqlCMD.Parameters("@co").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("co")(0)))) Catch ex As Exception sqlCMD.Parameters("@co").Value = "" End Try sqlCMD.Parameters("@adspath").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("adspath")(0)))) If sqlConnection.State = ConnectionState.Closed Then sqlConnection.Open() End If Try 'Here's where the error occurs, of course... rowsAffected = sqlCMD.ExecuteNonQuery() Catch ex As Exception writeLog(ex.Message) End Try sqlCMD.Dispose() End Sub Tag: How do i bind to a collection Tag: 125644
  - 13
    - Have you stopped using ADO? Just wondering - has everyone switched to ADONet, or do you still use 'old' ADO for something? Vayse Tag: How do i bind to a collection Tag: 125643
  - 14
    - Must declare the scalar variable "@" - paramaterized sqlclient insert Below is my code, the error occurs when it is executed. I don't quite understand it; What am I doing wrong? Sub insertADRecords(ByVal oEntry As SearchResult) Dim iIndex1 As Integer Dim strSql, strDN, strProxyAdd, strProxy(), strMyString As String, rowsAffected As Integer strSql = "INSERT INTO Tradoc.dbo.CurrAD (objclass, cn, mailnickname, targetAddress, proxyAddresses, displayname, givenName,initials,sn,title,telephoneNumber,company,department,physicalDeliveryOfficeName,l,st,postalcode, co,adspath) VALUES (@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@,@))" Dim sqlCMD As SqlClient.SqlCommand = New SqlCommand(strSql, sqlConnection) 'sqlCMD.Connection() = sqlConnection sqlCMD.CommandType = CommandType.Text writeLog(strSql) 'Dim oResult As SearchResult Dim item, strtemp As String sqlCMD.Parameters.Add(New SqlParameter("@objclass", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@cn", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@mailnickname", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@targetAddress", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@proxyAddresses", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@displayName", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@givenName", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@initials", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@sn", SqlDbType.VarChar, 100)) sqlCMD.Parameters.Add(New SqlParameter("@title", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@telephoneNumber", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@company", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@department", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@physicalDeliveryOfficeName", SqlDbType.VarChar, 400)) sqlCMD.Parameters.Add(New SqlParameter("@l", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@st", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@postalcode", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@co", SqlDbType.VarChar, 50)) sqlCMD.Parameters.Add(New SqlParameter("@adspath", SqlDbType.VarChar, 400)) '*********************************************************** sqlCMD.Parameters("@objclass").Value = "contact" Try sqlCMD.Parameters("@cn").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("cn")(0)))) Catch ex As Exception sqlCMD.Parameters("@cn").Value = "" End Try Try sqlCMD.Parameters("@mailnickname").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("mailnickname")(0)))) Catch ex As Exception sqlCMD.Parameters("@targetAddress").Value = "" End Try Try sqlCMD.Parameters("@targetAddress").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("targetAddress")(0)))) Catch ex As Exception sqlCMD.Parameters("@targetAddress").Value = "" End Try Try sqlCMD.Parameters("@proxyAddresses").Value() = Convert.ToString(oEntry.Properties("proxyAddresses")(0)) Catch ex As Exception sqlCMD.Parameters("@proxyAddresses").Value() = "" End Try Try sqlCMD.Parameters("@displayName").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("displayName")(0)))) Catch ex As Exception sqlCMD.Parameters("@displayName").Value() = "" End Try Try sqlCMD.Parameters("@givenName").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("givenName")(0)))) Catch ex As Exception sqlCMD.Parameters("@givenName").Value = "" End Try Try sqlCMD.Parameters("@initials").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("initials")(0)))) Catch ex As Exception sqlCMD.Parameters("@initials").Value = "" End Try Try sqlCMD.Parameters("@sn").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("sn")(0)))) Catch ex As Exception sqlCMD.Parameters("@sn").Value = "" End Try Try sqlCMD.Parameters("@title").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("title")(0)))) Catch ex As Exception sqlCMD.Parameters("@title").Value = "" End Try Try sqlCMD.Parameters("@telephoneNumber").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("telephoneNumber")(0)))) Catch ex As Exception sqlCMD.Parameters("@telephoneNumber").Value = "" End Try Try sqlCMD.Parameters("@company").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("company")(0)))) Catch ex As Exception sqlCMD.Parameters("@company").Value = "" End Try Try sqlCMD.Parameters("@department").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("department")(0)))) Catch ex As Exception sqlCMD.Parameters("@department").Value = "" End Try Try sqlCMD.Parameters("@physicalDeliveryOfficeName").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("physicalDeliveryOfficeName")(0)))) Catch ex As Exception sqlCMD.Parameters("@physicalDeliveryOfficeName").Value = "" End Try Try sqlCMD.Parameters("@l").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("l")(0)))) Catch ex As Exception sqlCMD.Parameters("@l").Value = "" End Try Try sqlCMD.Parameters("@st").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("st")(0)))) Catch ex As Exception sqlCMD.Parameters("@st").Value = "" End Try Try sqlCMD.Parameters("@postalcode").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("postalcode")(0)))) Catch ex As Exception sqlCMD.Parameters("@postalcode").Value = "" End Try Try sqlCMD.Parameters("@co").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("co")(0)))) Catch ex As Exception sqlCMD.Parameters("@co").Value = "" End Try sqlCMD.Parameters("@adspath").Value = strQuoteReplace(Trim(Convert.ToString(oEntry.Properties("adspath")(0)))) If sqlConnection.State = ConnectionState.Closed Then sqlConnection.Open() End If Try 'Here's where the error occurs, of course... rowsAffected = sqlCMD.ExecuteNonQuery() Catch ex As Exception writeLog(ex.Message) End Try sqlCMD.Dispose() End Sub Tag: How do i bind to a collection Tag: 125639
  - 15
    - How to persist an ADO recordset from Sql Server into Access Is there a simple way to persist a recordset from a SQL Server db into a table in an Access database, for example DAO allows a "select * into tablex in 'c:\externaldb.mdb' from..." Or is a disconnected recordset the way to go, but then how do I persist this back into another table in an Access database or even a file? Thanks in advance, WayneM Tag: How do i bind to a collection Tag: 125638
  - 16
    - Binding DataGridView without default DataVeiw, it's possible? I know that when binding DataGridView to Datatable, the ADO.NET create Dataview. the problem is with large data, this process take long time and consume RAM. if i not need sorting service have a way to avoid the default dataView? Tag: How do i bind to a collection Tag: 125635
  - 17
    - Primary Key I'm dev. a app with typed datasets and I would not use a self-inc field for the primary key. Instead of I would like make my own pk control. What's the best way to make that with VS 2005 + SQL 2005? Just make a sp like the old good times? :-) Tag: How do i bind to a collection Tag: 125628
  - 18
    - Transactions with TableAdapters in ADo.Net 2.0 I have a VS2005 C# winforms app connecting to SQL2005. Having discovered the limitations of the new TableAdapter implementation, and the fact that if I use System.Transaction on updates to a DataSet with several related tables then MSDTC is automatically invoked, I've followed advice from this newsgroup and elsewhere to implement my own methods in the TableAdapter classes to apply a SQLTransaction object to each command (much as I used to do with DataAdapters in ADO 1.1). This seems to work very well, but I'm puzzled by the fact that when I trace the events in SQL Profiler I do not see any BEGIN TRAN or COMMIT statements, even though if I artificially induce a rollback the transaction is definitely completely rolled back as expected. Is there a different communication channel for transactions with SQL2005? brian smith Tag: How do i bind to a collection Tag: 125626
  - 19
    - Changing column order in typed dataset I create a typed dataset based upon a table, using the VS2005 designer. I then add a query to the table adapter with a select statement, changing the order of some columns, and removing others. When I select preview data, I see the columns in the original order of the dataset, with the columns I removed now showing up as empty. This can't be by design, can it? And if so, how can I order the columns? Since I am using stored procedures, I can drop the select stored procedure in the TDS and the resulting column order is correct, but I am now using a different table adapter. Are there any other options? Thanks, David R Tag: How do i bind to a collection Tag: 125618
  - 20
    - Binding to TextBoxes on MySQL with C# Ref: WinXP SP2, MySQL 5.0, .NET 1.1, C# I try to bind columns to TextBoxes. The column data appears in the textboxes, but if modified will not update. My code came from MySQL example, which uses a datagrid. If cols in the datagrid are modified they update fine. The following code: DataTable changes; changes = this.data.GetChanges(); x = 1; this.da.Update( changes ); this.data.AcceptChanges(); yields the error "Value cannot be null", as I guess 'changes' is null because nothing in the DataGrid has changed. So, how to get the TextBox bindings to yield non-null 'changes' FYI: 'data' is a DataTable, 'da' is MySQLDataAdapter Thanks! Tag: How do i bind to a collection Tag: 125615
  - 21
    - can't drag a dataset Hi, i'm a beginner, this is the scenario: i'm using vs2005 and c## Created a win form project. Created a ms database with some tables. created a win form who acts as parent and some others forms that inherits from it, in my parent form a put a label and a group box. Drag a dataset to a inherited form and work fine. The problem: Can not drag any other dataset to another inherited form. I did try dragging from datasource window (typed dataset), from server explorer, dragging a grid control and bindig to a table, but nothing really work. I was triying some options and if i create a new win form i can drag a dataset to it. *** Sent via Developersdex http://www.developersdex.com *** Tag: How do i bind to a collection Tag: 125612
  - 22
    - DB2CONNECTION ISSUES.. Hello I am facing a very different issue with db2 connect. DBconnection string is Database=mydatabase;UID=userid;PWD=password;pooling = false mydatabase is a system DSN created while configuring db2 node. Sometimes all of sudden i am getting this issue error "The type initializer for "IBM.Data.DB2.DB2Connection" threw an exception." at IBM.Data.DB2.DB2Connection..ctor(String connectionString) at Microsoft.Practices.EnterpriseLibrary.Data.DB2.DB2Database.GetConnection() at Microsoft.Practices.EnterpriseLibrary.Data.Database.LoadDataSet(DBCommandWrapper command, DataSet dataSet But after restarting the IIS everything works fine for 1/2 days and again starts same issue. In some developer machines i am not at all getting this issue. #1) asp.net and given permission to IWAM_USR under which worker process is running. #2) given permission to SQLLIB folder to IWAM_USR. #3)Added IWAM_USR to the db2users group. #4) Reregistered DB2client 8.1.7 plz help me out if u have any solutions.. Thanks in advance Tag: How do i bind to a collection Tag: 125609
  - 23
    - Connection String will not connect from ASP.NET I have been using the following connection string to connect to sql server from an asp.net page: packet size=4096;user id=xxxxxx;data source=w2k3bspsqldevvs;persist security info=True;initial catalog=xxxxxx;password=xxxxxx It worked perfectly well. I had a week off and now the asp.net page will no longer connect to the sql server. If I create a c# desktop app and use the connection string above then it works. If I create a new asp.net page and use the connection string then it doesn't work. I found a similar message in this group entitled "ASP.NET Connection String" - the solution was to restart the SQL Server. Unfortunately my sql server is in a cluster and never gets rebooted. Any one got any ideas? Thanks Tag: How do i bind to a collection Tag: 125596
  - 24
    - Connection String will not connect from ASP.NET I have been using the following connection string to connect to sql server from an asp.net page: packet size=4096;user id=xxxxxx;data source=w2k3bspsqldevvs;persist security info=True;initial catalog=xxxxxx;password=xxxxxx It worked perfectly well. I had a week off and now the asp.net page will no longer connect to the sql server. If I create a c# desktop app and use the connection string above then it works. If I create a new asp.net page and use the connection string then it doesn't work. I found a similar message in this group entitled "ASP.NET Connection String" - the solution was to restart the SQL Server. Unfortunately my sql server is in a cluster and never gets rebooted. Any one got any ideas? Thanks Tag: How do i bind to a collection Tag: 125595
  - 25
    - Convert UTC time to localtime in SqlDataAdapter I have the following method, that retrieves data from a SQL server and propergates the data in a datagrid. No problems there: ________________________________________________________________ Public Sub fetchBillPostings(ByVal stationName As String, ByRef BillpostingsDG As DataGrid) Dim dataadapter As New SqlDataAdapter( _ "SELECT dbo.Postings.[Time], dbo.Postings.Locator, dbo.Postings.PriceGroup, " & _ "dbo.Postings.License, dbo.Postings.Price, dbo.Postings.Currency " & _ "FROM dbo.Postings INNER JOIN dbo.Rooms ON dbo.Postings.Room =3D dbo.Rooms.Name " & _ "INNER JOIN dbo.Stations ON dbo.Rooms.Id =3D dbo.Stations.Room " & _ "WHERE (dbo.Stations.Name =3D '" & stationName & "')", sqlConn) Dim dataset =3D New DataSet("Testdataset") dataadapter.Fill(dataset, "Postings") BillpostingsDG.SetDataBinding(dataset, "Postings") ' Formater datagrid korrekt Dim ts1 As DataGridTableStyle ts1 =3D New DataGridTableStyle ts1.MappingName =3D "Postings" ts1.GridLineColor =3D Color.White ts1.HeaderBackColor =3D Color.FromArgb(62, 98, 144) ts1.HeaderForeColor =3D Color.White ts1.SelectionBackColor =3D Color.FromArgb(82, 118, 164) If Not BillpostingsDG.TableStyles.Contains(ts1.MappingName) Then BillpostingsDG.TableStyles.Add(ts1) BillpostingsDG.TableStyles.Add( _ ExtendedDataGrid.DataGridApplyAutomaticWidths(BillpostingsDG, BillpostingsDG.TableStyles(0), 10, 200)) 'formater s=E5dan at datoen ogs=E5 indeholder tid Dim dgtbc As DataGridTextBoxColumn =3D BillpostingsDG.TableStyles.Item(1).GridColumnStyles.Item(0) dgtbc.Format =3D "g" dgtbc.FormatInfo =3D New System.Globalization.CultureInfo(&H413) ' holland 's=F8g for at null bliver til blank: dgtbc =3D BillpostingsDG.TableStyles.Item(1).GridColumnStyles.Item(1) dgtbc.NullText =3D "" dgtbc =3D BillpostingsDG.TableStyles.Item(1).GridColumnStyles.Item(2) dgtbc.NullText =3D "" End If End Sub ________________________________________________________________ Now the problem is that that the time stored in dbo.Postings.[Time] is in UTC and I would like to display it with localtime (in my case +1 hour) How can I do that? As far as I can see there is something in .net 2.0 that enables you to change the datetime format in the dataset. But thats not an option here. Also note that I only need to display the data. I'm not changing anything in the datagrid and updating the SQL data. Thanks in advance for any input. Tag: How do i bind to a collection Tag: 125593

This is a multi-part message in MIME format.

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Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

I know how to bind to a property in a class like this :

this.BindingContext.Add(Class1.PropertyName, dataview, "Name");

Now i have a data Relation which can return muliple rows. Here is the =
construct

CurrencyManager cm =3D (CurrencyManager)this.BindingContext[dataview, =
"StudentsWithLastNameX"];

while( cm.Position < cm.Count)
{
this.BindingContext.Add(Class1.Stutdents, dataview, "FirstName"); =
<-------- I want to add binding to FirstName with a collection instead =
of property.
cm.Position ++;
}

Can anyone suggest how do go about doing this?

Thanks
Vivek
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charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2900.2802" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY>
<DIV><FONT face=3DArial size=3D2>I know how to bind to a property in a =
class like=20
this :</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial color=3D#008000=20
size=3D2>this.BindingContext.Add(Class1.PropertyName, dataview,=20
"Name");</FONT></DIV>
<DIV><FONT face=3DArial color=3D#008000 size=3D2></FONT> </DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Now i have a data Relation which can =
return muliple=20
rows. Here is the construct</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>CurrencyManager cm =3D=20
(CurrencyManager)this.BindingContext[dataview,=20
"StudentsWithLastNameX"];</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>while( cm.Position < =
cm.Count)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>{</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>    <FONT=20
color=3D#ff0000>this.BindingContext.Add(Class1.Stutdents, dataview,=20
"FirstName");</FONT>   <STRONG><-------- I want to add =
binding to=20
FirstName with a collection instead of property.</STRONG></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>    cm.Position =
++;</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>}</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Can anyone suggest how do go about =
doing=20
this?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Thanks</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Vivek</FONT></DIV></BODY></HTML>

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