Databinding a check list box

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  - 1
    - Need some help on forms Hey, YO...., I NEED SOME HELP HERE ! Actually, I got some info from a good guy called ScottT, but I need more. You see, I'm kind of stuck in here. I need to connect two forms. But the problem is... I don't know the codes. What I wanna do is click a button from the first form to go to the second form & then click a button from the second form to go to the third form & then etc etc. Also I wanna have a certain form which connected to all the other forms & can click a button from that certain form to go to all the other forms. That's all. Why can't anybody just help me ? I'm a newcomer to the field & I need help so ...so ...much. Tag: Databinding a check list box Tag: 132040
  - 2
    - StoredProc commits results in QueryAnalyzer but not in ADO.NET I'm hoping someone can help! I have a stored procedure in an MSDE database. When I use Query Analyser to run this stored procedure the correct results appear in the database. My stored procedure returns resultCode. The stored procedure includes a single BEGIN TRANSACTION [...] COMMIT TRANSACTION Within my application, I execute the follow code I recieve the correct result code but the information is NOT updated in teh database. I have tried with and without ADO transactions. public int CreateFrame(string BRKEY, string INSPKEY, string USERKEY) { //System.Data.OleDb.OleDbTransaction frameTransaction; int returnValue = 0; _command.Parameters["@brkey"].Value = BRKEY; _command.Parameters["@userkey"].Value = USERKEY; _command.Parameters["@inspkey"].Value = INSPKEY; try { if (_command.Connection.State == System.Data.ConnectionState.Closed) _command.Connection.Open(); } catch (Exception ex) { System.Diagnostics.Trace.WriteLine(ex.Message); returnValue=-99; } if (returnValue !=0) return(returnValue); //frameTransaction = _command.Connection.BeginTransaction(); //_command.Transaction = frameTransaction; try { _reader =_command.ExecuteReader(); _reader.Close(); returnValue = (int)_command.Parameters["@returnCode"].Value; //frameTransaction.Commit(); _command.Connection.Close(); _command.Dispose(); } catch (Exception exception) { //frameTransaction.Rollback(); System.Diagnostics.Trace.WriteLine(exception.Message); returnValue=-99; } finally { if (_command != null) _command.Dispose(); } return(returnValue); } my parameters and my command and connection objects are created in the initializer to my class My users begin testing in 2 days and I'd like to have this functionality working. HELP! 8-) Tag: Databinding a check list box Tag: 132039
  - 3
    - CSV header conating "." dot and after loading it into dataset its converting into "#" CSV header conating "." dot and after loading it into dataset its converting into "#" LIKE. First.Name First # Name waiting for your reply Tag: Databinding a check list box Tag: 132037
  - 4
    - How to know the first sheet name of an Excel I use the codes below to import the first sheet of an Excel file into a DataSet. But if the name of the first sheet is not "Sheet1", the SelectCommand will fail. How can I know the sheet name of the first Sheet in an Excel file? string sConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + savePath + "; Extended Properties=" + (char)34 + "Excel 8.0;IMEX=1;" + (char)34; string sSelect = "SELECT * FROM [Sheet1$]"; OleDbConnection objConn = new OleDbConnection(sConnectionString); objConn.Open(); OleDbCommand objCmdSelect = new OleDbCommand(sSelect, objConn); OleDbDataAdapter objAdapter1 = new OleDbDataAdapter(); objAdapter1.SelectCommand = objCmdSelect; objAdapter1.Fill(ds, "XLData"); objConn.Close(); Tag: Databinding a check list box Tag: 132034
  - 5
    - How to determinate if a string in the Field names of a dataTable? Hi, I have a dataTable with some fields. How can I determinate if a string in the Field names of a dataTable? Tag: Databinding a check list box Tag: 132032
  - 6
    - Using Oracle.ClientAccess.Data with System.Data.Common I am trying to return a datatable using the Oracle driver. In order to return a dataset from the stored proc I need a cursor type to receive the data. How is this possible with the Common namespace since it does not have a cursor or refcursor type? John Tag: Databinding a check list box Tag: 132029
  - 7
    - Trying to restore a .bak in C# Can I run a SQL command like: RESTORE DATABASE NewDB FROM DISK = 'ApplicationStartupPath\SQLSE2005\DevDB.bak' WITH RECOVERY, MOVE 'DevDB_Data' TO 'C:\\Program Files\\Microsoft SQL Server\\MSSQL.1\\MSSQL\\Data\\NewEB_Data.mdf', MOVE 'DevDB_Log' TO 'C:\\Program Files\\Microsoft SQL Server\\MSSQL.1\\MSSQL\\Data\\NewDB_Log.ldf' while connected to the master db installed by default in SQLSE 2005? If not how the heck do I run this command to restore this db for the client when they install the app? Tag: Databinding a check list box Tag: 132024
  - 8
    - SqlTypes Decimal Hi, I'm using .Net Framework 2.0. I Querying an Sql 2000 Database to fill a Dataset, the user dynamically choses what tables to query to fill the dataset. I need to provide information to the user about the tables, information such as the type and size of the columns. Though at start this seemed to be quite simple to do, I have now came to a problem when working with decimal columns. how can I get the number of digits that a decimal column suports? I have tried using sqlTypes when filling the table but not have been able to get this info. Can SomeBody Help me Please. Carlos Pedro Tag: Databinding a check list box Tag: 132022
  - 9
    - Stored Proc problem Hi, I am having stored proc which returns 2 resultsets, now i want to call this stored proc within another stored proc, but i want to use only the second resultset from the previous stored proc. So please tell me how can i do this.?? Thanks in advance, Regards, Manoj Singh. Tag: Databinding a check list box Tag: 132018
  - 10
    - SqlCommandBuilder - not setting my identity column I ran into a problem when I tried to use SqlCommandBuilder to generate my insert statement. The problem was the identity column wasn't being set when I called Update. It was set correctly in the database, it just wasn't updating my inserted DataRow. This caused issues when I went to add rows in other tables that keyed off the one I just inserted because I didn't have the primary key. Long story short... I searched high and low and was finally able to piece it together between what I found in these newsgroups and the MSDN documentation. I thought I'd share how simple it ended up being because I saw some crazy work-arounds in all my searching. There were two key things that I kept missing somehow. 1. calling RefeshSchema to clear the command builders handy work and then resetting the insert command with my mods to the originally generated one. 2. setting UpdatedRowSource to FirstReturnedRecord. It ended up being so simple... sheesh! The hours I spent searching. I hope someone else gets some value out of this. Rob // Set up _tblMain = new DataTable(TBL_PENDING_MAIN); _cmdBuilderMain = new SqlCommandBuilder( new SqlDataAdapter("SELECT * FROM " + TBL_PENDING_MAIN, _conn)); _cmdBuilderMain.DataAdapter.FillSchema(_tblMain, SchemaType.Mapped); // Later after adding a row to the table... // take care of the pesky bug in the command builder // (doesn't get the identity colomn) SqlCommand cmd = _cmdBuilderMain.GetInsertCommand(true); _cmdBuilderMain.RefreshSchema(); // Clears the generated commands cmd.CommandText += "; SELECT SCOPE_IDENTITY() AS PIF_ID;"; cmd.UpdatedRowSource = UpdateRowSource.FirstReturnedRecord; _cmdBuilderMain.DataAdapter.InsertCommand = cmd; _cmdBuilderMain.DataAdapter.Update(_tblMain); // now _tblMain.Rows[0]["PIF_ID"] is correctly set!! Tag: Databinding a check list box Tag: 132014
  - 11
    - database writing efficiency I need to log 400 values every second into an access database. Previously I did this in C++ using OLEDB and after a lot of experimentation, I minimized the peak CPU usage by writing out the data in a separate thread every 10ms. Now I have to do this in C# and I am uncertain as to the most efficient method (I am primarily concerned with CPU usage). My current methodology is below. One inefficiency I recognize but Iâ??m not sure how to fix is that Iâ??m storing the data in memory as well as the database but I only really need it in the database. Another specific question I have is which database adaptor is fastest with access and which update override is fastest (maybe rows is better than tables?) Thanks, Jeff { string strSQL; OleDbCommandBuilder cmdBuilder; DataSet dsIOChannelData; m_dbConnection = new OleDbConnection(strConnection); strSQL = "SELECT TimeStamp, ChannelID, Value FROM tblIOChannelData"; daIOChannelData = new OleDbDataAdapter(strSQL, m_dbConnection); cmdBuilder = new OleDbCommandBuilder(daIOChannelData); cmdBuilder.QuotePrefix = "["; cmdBuilder.QuoteSuffix = "]"; cmdBuilder.SetAllValues = true; dsIOChannelData = new DataSet(); m_dbConnection.Open(); daIOChannelData.Fill(dsIOChannelData, "tblIOChannelData"); dtIOChannelData = dsIOChannelData.Tables[0]; } public void LogIO() { long lStartTicks; long lElapsedTicks; double dInverseTicksPerMS; OleDbDataAdapter dbAdaptor; DataTable dtIOChannelData; loadIOLogDataTable(out dbAdaptor, out dtIOChannelData); dInverseTicksPerMS = 1.0 / TimeSpan.TicksPerMillisecond; m_bActiveLog = true; while (m_bActiveLog) { lStartTicks = DateTime.Now.Ticks; for (int i = 0; i != 400; ++i) dtIOChannelData.Rows.Add(DateTime.Now.ToOADate(), 77.5, 5); dbAdaptor.Update(dtIOChannelData); lElapsedTicks = DateTime.Now.Ticks - lStartTicks; Thread.Sleep(Math.Max(0, 1000 - (int)(lElapsedTicks * dInverseTicksPerMS + 0.5))); } m_dbConnection.Close(); } Tag: Databinding a check list box Tag: 132010
  - 12
    - Datatable size in memory Does anyone know of a way to estimate how much memory a datatable is using? Are they any user-friendly tools that I can find this info out? Thanks Tag: Databinding a check list box Tag: 132004
  - 13
    - ADO.NET 2.0 - Simple question for you... I have an ASP.NET 2.0 website. I want to write a function in ADO.NET 2.0 (VB.NET) that does the following: 1. Opens up a connection to my SqlExpress db. (The connectionstring is in the <connectionStrings> section of my web.config) 2. Runs a query, storing results in a datatable. 3. Closes connection Can anyone assist? Thanks! Tag: Databinding a check list box Tag: 132002
  - 14
    - MS Access modules Hullo all: Is there a nifty way to retrieve a list of the macros / code modules in an MS Access database using ADO.NET, a la OleDB.OleDBConnection.GetOleDbSchemaTable for retrieving tables and views? Thanks much, zdrakec Tag: Databinding a check list box Tag: 132001
  - 15
    - Simple SQL INSERT I have a SQL INSERT statement. I'm pretty well-versed in SQL but NOT in VB.NET / ASP.NET. I would like to know what VB code is for inserting a new row into a database. I have a SQL Table established already. I would like to know the code required to insert a new row to that SQL Table. I don't have any connection strings established yet, I don't have anything. Can you please take pity on a poor .NET Newb and tell me what I should be doing? I've tried several examples and have yet to successfully insert a record. I think I need to know how to establish the connection, and then write (insert) a new record to that connection. Thanks in advance. This stuff can be very overwhelming. Tag: Databinding a check list box Tag: 131988
  - 16
    - Simple SQL INSERT I have a SQL INSERT statement. I'm pretty well-versed in SQL but NOT in VB.NET / ASP.NET. I would like to know what VB code is for inserting a new row into a database. I have a SQL Table established already. I would like to know the code required to insert a new row to that SQL Table. I don't have any connection strings established yet, I don't have anything. Can you please take pity on a poor .NET Newb and tell me what I should be doing? I've tried several examples and have yet to successfully insert a record. I think I need to know how to establish the connection, and then write (insert) a new record to that connection. Thanks in advance. This stuff can be very overwhelming. Tag: Databinding a check list box Tag: 131987
  - 17
    - DataGridViewComboBoxColumn seperate items I'd like to have separate items in the DataGridViewComboBoxColumn for each row, For an example look at the vs2005 query builder. Column(0) is the fieldName and contains a list of the fields from the table named in column(2). If the table selected in column(2) of a particular row is changed the available items in column(0) reflect the available fields for that table. And if there isnâ??t a table selected in column(2) then the items available in column(0) is the full field list for all table. How would I do something similar (really really similar)? Tag: Databinding a check list box Tag: 131986
  - 18
    - downloading of a file from internet explorer Hi, Generally we will download the files using internet exlorer defalut download manager.By using C# or VB.Net how will we get the file information which we are trying to download from the Internet explorer. Is it possible. If any one helps thanks in advance. if any one have Code it will be very helpful. Regards, kamal. Tag: Databinding a check list box Tag: 131985
  - 19
    - DataRelation problem Hi, I want to use DataRelation object for setting up relationship between two different datatable, but i want to use multiple columns to set up relation between two tables. For example. DataRelation dRelationOrgInd = new DataRelation("OrgInd", ds.Tables["OrgList"].Columns["iIDOrganization, iIDSeries"], ds.Tables["IndList"].Columns["iIDOrganization, iIDSeries"], true); dRelationOrgInd.Nested = true; ds.Relations.Add(dRelationOrgInd); I want to use something above mention code, but i am not able to set up multiple columns in datarelation object for single table. ...I am using C# 2.0 Please tell me how can i achieve the same. Thanks in advance. Regards, Manoj Singh. Tag: Databinding a check list box Tag: 131984
  - 20
    - Problem with a readonly table in a dataset (data source) in VS 200 I created a data source that point to an Access database with 3 tables in it. My problem is that the tables are designated read only and I don't know how to change the setting so I can copy data to them. I can see the public property in the config file but I am new to Visual Studio 2005 and don't know how to fix my problem. -- cathy Tag: Databinding a check list box Tag: 131980
  - 21
    - DataSet designer in VS2005 Hi, I have two questions about the DataSet designer in Visual Studio 2005: 1. How can I make another TableAdapter under a DataTable which already has one? I'm sharing the DataSet with the DataTable between two applications, and they need separate TableAdapters... 2. I've created the DataTable with structure identical to the SQL Server table it is based on - can I easily update (not automatically, but from the designer) the DataTable to make the DataTable structure match the SQL Server table? (i.e. when a column is added or modified in the SQL Server table, I want to click a button in VS2005 so the same modification is done in the DataTable). Thanks! Regards, Nils Magnus Englund Tag: Databinding a check list box Tag: 131974
  - 22
    - Newbie and 2005 Concurrecny Hi All, Hope you all fine? Can I ask you all a quick question? I`ve been trying to get concurrency to work for my project in VB2005. I have the following code, which to be fair i`ve got so lost with but here it is: Private Sub BTADSL_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.MasterDBDataSet.EnforceConstraints = False Me.M_BTAnalogueLinesTableAdapter.Fill(Me.MasterDBDataSet.M_BTAnalogueLines) Me.S_LocationsTableAdapter.Fill(Me.MasterDBDataSet.S_Locations) Me.M_BTADSLTableAdapter.Fill(Me.MasterDBDataSet.M_BTADSL) 'USERS M_BTADSLDataGridView.DataSource = MasterDBDataSet.M_BTADSL BTAnalougeLinesIDcomboBox.DataBindings.Add("TEXT", MasterDBDataSet.M_BTADSL.BTAnalougeLinesIDColumn, "TelephoneNumber") BTAnalougeLinesIDcomboBox.DataSource = MasterDBDataSet.M_BTADSL BTAnalougeLinesIDcomboBox.DisplayMember = "M_BTADSL.S_Locations.TelephoneNumber" BTAnalougeLinesIDcomboBox.ValueMember = "M_BTADSL.BTAnalougeLinesID" LocationsIDcomboBox.DataBindings.Add("TEXT", MasterDBDataSet.M_BTADSL.LocationsIDColumn, "Location") Dim cmBTADSL As CurrencyManager cmBTADSL = Me.BindingContext(MasterDBDataSet, "BTADSL") cmBTADSL = DirectCast(BindingContext(MasterDBDataSet.M_BTADSL), CurrencyManager) 'USER Im so confused with the concurrency thing i just don`t know where to go now. Could anybody have a look and tell me what a mess i`ve made and how to solve it? If poss maybe some links? Many Thanks A very Comfused Newbie Tag: Databinding a check list box Tag: 131971
  - 23
    - SQL UPDATE for Dates ?? Hi folks, I have 2 code snippets. One works and one does not. This first hard-coded snippet works Dim queryString As String = "UPDATE [rfi] SET [dateresolved] = '8/16/2006' WHERE ([rfi].[id] = @id)" This second snippet does not work Dim dtNow As DateTime = DateTime.Now dRes = dtNow.ToShortDateString Dim queryString As String = "UPDATE [rfi] SET [dateresolved] = dRes WHERE ([rfi].[id] = @id)" dateresolved is a Date/Time data-type. The first snippet uses single quotes around the date but I would think the second snippet would be accepted as a string. If I debug the value of dRes, I receive the proper format of "8/16/2006" Any clues you can leave me with? Thanks, - Glenn Tag: Databinding a check list box Tag: 131968
  - 24
    - Auto uncrement column Im am trying to create an auto increment column in a table. Where in the code below, should I make which changes in order to do that? Adrian /* dt.Columns.Add("Key", System.Type.GetType("System.Int32")); dt.Columns["Key"].AutoIncrement = true; dt.Columns["Key"].AutoIncrementSeed = 1; dt.Columns["Key"].AutoIncrementStep = 1; dt.PrimaryKey = new DataColumn[] { dt.Columns["Key"]}; */ DataColumn auto = dt.Columns.Add("Key", typeof(int)); dt.Columns["Key"].AutoIncrement = true; dt.Columns["Key"].AutoIncrementSeed = 1; dt.Columns["Key"].AutoIncrementStep = 1; //auto.AutoIncrement = true; //auto.AutoIncrementSeed = 0; //auto.AutoIncrementStep = 15; dt.PrimaryKey = new DataColumn[] {auto}; dt.Columns.Add("ForeName", System.Type.GetType("System.String")); dt.Columns.Add("LastName", System.Type.GetType("System.String")); dt.Columns.Add("TelephoneNumber", System.Type.GetType("System.String")); Tag: Databinding a check list box Tag: 131966
  - 25
    - DataSet Designer/adding multiple tables to a dataset/ how? In the VS2005 DataSet Designer if i try to add multiple tables from an OLEDB database, i get an error: "Failed to add TableAdapter." "An item with the same key has already been added." What does this mean? How do i get around it? Tag: Databinding a check list box Tag: 131963
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    - Changing ConnectionString programmatically Have the following situation: I have an old C++ application, which I have managed to compile with /clr to make it access .net functionality. For some of the new functionality I have decided to create a C# DLL, being a very neat and handy language. I have used wizards to create the dataset, extracting data to a grid from an SQLServer with stored procedures, all generated from wizards and life is fine. Except: The connection string that I have is of course "hard coded default", so that I could get the data in in the first place. The real life connection string that I want is something that I have read from another database in the main application (C++), which I now would like the C# DLL to use as well. This connection string also contains username and password set from a user login (using SQLServer authorisation). The C++ application, originally being unmanaged does not read an app.config file. The connection string is therefore not accessible through System.Configuration.Configuration. And the MyDLL.Properties.Settings.Default.myConnectionString is readonly, and might not change things anyway. Anyone, please? Or do I have to rewrite the whole db code? Ole Tag: Databinding a check list box Tag: 131958
  - 2
    - what ado.net object to use problem I need to accomplish this tasks: 1. i need to query sql database 2. check if null, if not continue 3. check a certain column if null,if not continue 4. filter or split the data into two sets, these 2 will be the datasources of two gridview. i can use datareader to query sql database, check if its null (using datareader.hasrows), and check if certain column if null; however i cant use datareader to filter rows into 2 sets. To achieve this, datatable has select method or dataview has rowfilter method. Now how do i transfer data from datareader to datatable or dataset/dataview? As much as possible i want a single database query so the web app will be faster. Thanks. Tag: Databinding a check list box Tag: 131957
  - 3
    - Add money to your Paypal account with OPRAH r(;x3 Read this message until the end, and you will find out how the money flows in easy !!!!. Follow the steps and it WILL work. Trust me !!!!!. It's NOT illegal and it is NOT a scam !!!!!. PROVEN ON OPRAH! Reported in the Wall Street Journal!!!! The only thing you need is : - E-MAIL ACCOUNT - PREMIER (FREE) or BUSINESS PAYPAL ACCOUNT - $6 on this account (The only investment) - 30 minutes of your time There is no limit on how much money you can recieve, and you haven't got anything to lose with this Business program. I will explain how it works !!!!!. Follow these 4 easy steps and it WILL work !!!!!. STEP 1 : SIGN UP FOR A FREE PAYPAL ACCOUNT !!!!!. Paypal is a free and safe way to pay and receive money on the Internet. Creating a account is as easy as creating a MSN account. Copy and paste the next line in your Internet browser and sign up. HTTP://WWW.PAYPAL.COM Be sure to sign up for a FREE Premier or Business account and not for a Personal account. You cannot receive CREDITCARD payments with a Personal account and we can't have that. Do we !!!!!. STEP 2 : SENT $6 TO YOUR PAYPAL ACCOUNT This is your only investment to receive the money with ease. With your Paypal account, send $1 to each e-mailadres listed below. !!!!! IMPORTANT !!!!! Be sure to use this SUBJECT : *PLEASE PUT ME ON YOUR EMAIL LIST* when you send the money. 1) martine@pilote.net 2) dexxatol@netcourrier.com 3) armygirl8568@hotmail.com 4) comjii@starband.net 5) sinnek@bellsouth.net 6) nsi@nelasat.com STEP 3 : PUT YOUR E-MAIL ADDRESS ON THE BOTTOM OF THE LIST After you have send $1 to each e-mail address, put your e-mail address on the 6th place. Remove e-mail address number 1, and move each e-mail address 1 step up the ladder. !!!!! IMPORTANT !!!!! BE SURE THAT THE E-MAIL ADDRESS YOU USE IS THE SAME AS YOU USED TO SIGN UP AT PAYPAL. Remember that this is LEGAL. You are creating a service : an e-mail servicelist. STEP 4 : UPLOAD OR COPY THIS MESSAGE TO NEWSGROUPS, FORUMS ETC AND EMAIL IT TO ALL YOUR FRIENDS! There are 32,000 newsgroups. Upload or copy this message to at least 200 newsgroups or forums etc, but ........ remember that the more your upload the more people will see your message and the MORE MONEY WILL FLOW IN. How to upload to newsgroups and forums? : After you have followed step 1,2,3 and 4, save this message (and copy so you can use it again). Use your Internet browser and Outlook Express or another newsreader and try to find FORUMS, NEWSGROUPS, BULLETIN BOARDS, DISCUSSION GROUPS, CHAT SITES and ONLINE COMMUNITIES. Use GOOGLE or use a NEWSERVER. Use every option to post this message. Download PostXpert to send 1 message to more NEWSGROUPS at the same time. !!!!! REMEMBER !!!!! The more you post this message the more MONEY WILL FLOW IN. Why does this Business program work so well !!!!!. Lets asume that from the 200 (or more) messages that you have posted, only 5 people respond, you will have your $6 back that you have invested. Those 5 people will each send at least 200 messages with your e-mailadres on number 4. That's 6 x 6 x $1 = $36. The next 25 people will also send 200 messages with your adres on number 3. That's 36 x 6 x $1 = $216. The next 216 people also send 200 messages with your name on number 2. That's 216 x 6 x $1 = $1296!. Those 1296 people again also send 200 messages with your name on number 1. That will give us a total of 1296 x 6 x $1 = $7,776. Now the last tier! 7776 x 6 x $1 = $46,656!!!!!! This is only a EXAMPLE with 6 reactions. You WILL get MORE responses than that. Remember that most newsservers will leave the posted messages on there servers for about 2 weeks. If you will post your message again, it WILL again start from the beginning. So you can repeat this over and over again. Everyday MILLIONS of people are ONLINE and reading these messages, JUST LIKE YOU RIGHT NOW. I also was sceptical in the beginning and have read a lot of these messages. I also thought that it was bullshit. Until I thought : What the hell!, only $6. What's $6 and a couple of minutes of my time to solve my money problems. !!!!! REMEMBER !!!!! Follow every step, and IT WILL WORK, TRUST ME. !!!!! !!!!! BEST WISHES AND GOOD LUCK !!!!! w)O>+;)<9UVS;F>qaGL<Uq#v`V6(F]- rM;$g+!4IIQ*827?H4 Tag: Databinding a check list box Tag: 131952
  - 4
    - SQL UPDATE with a DATE data-type Hi folks, I am doing an UPDATE to a table that has a field for a DATE data type. I am using MS Access. The UPDATE works fine but when I try to place the DATE field in the mix it blows up. The table name is rfi. Here's a code snippet... Dim dtNow As DateTime = DateTime.Now UPDATE [rfi] SET [dateresolved]=dtNow WHERE ([rfi].[id] = @id) It does not like dtNow, so I tried using dtNow.ToString ( ) which it also did not like. Next I changed the data-type for the dateresolved field from DATE to STRING and tried to put in dtNow.ToString ( ) which it still did not like. Finally, I hard coded a string in as "8/15/2006" which it accepted both as a DATE type and as a STRING type. Any ideas on what I may be missing would be appreciated. - Glenn Tag: Databinding a check list box Tag: 131951
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    - Challenging ADO.NET situation (long) I've implemented a solution that I don't really think is very efficient, but I can't really think of a better way to do it. If anyone has any suggestions or citicisms, i'd be grateful to hear them. .NET 2.0/SQL 2000 (not 2005). I have two identical databases that need to be syncronized, seperated by the internet. I've implemented a web service on one server that will return a dataset containing all the currently "active" records. I then need to import (or update) those records into the local database. The records are structured in a simple master/detail format with multiple detail tables, depending on a "type" column in the master (ie some records will use one table for a detail, other records will use another). The complication is that a) I cannot change the schema. It's defined by an off the shelf application. b) Records can be added to either database independantly, but data is always transfered from remote to local, not the other way around. and c) because of b, i caanot depend on the primary key of the master being the same on both sides (an auto-increment identity value). All data besides the primary key should be copied (or updated) from the retrieved dataset to the local database. What i've done is identified some unique rows that I can use to create a secondary (though not "official") key. The database does not constrain these values to be unique, but the application is designed in such a way that it will not allow them to violate the uniqueness. The general flow is like this. I iterate over the master table, then lookup a row in the local database based on the unquie data. I then issue an insert if no records are returned, or an update if one is, tediously copying each field from the datarow to the SqlCommand.Parameters. I then check my local database for any "active" records that do not exist in the dataset returned by the remote host, because a record may have been "closed" between updates. If I find any records not in my remote dataset, I then have to issue a web service call to the remote host to return the single record for the closed record. I then update that record with the returned data ("closing" it). Then I walk through each of the detail tables, doing a lookup in a dictionary of remote:local record mappings that created while walking the master table and insert or update any records there. These records do not have to be updated if the master record has been "closed". This is generally a lot of work, and doesn't seem very efficient. If both databases were local (or even connectable directly via SQL) then I could use a DTS package to do a lot of this much easier (and do a lot more in SQL), but because I have to retrieve the data via a web service, it makes everything more difficult. The key points that I see as inefficient (and am looking for some thoughs on how to simplify) are: 1) Getting the data from my remote dataset to the new database. Manually (and tediously) copying the columns from a datarow to cmd parameters. I tried using two datasets and copying the datarow ItemArray values, but had all sorts of troubles with the dataadapter updates and insertions) 2) having to requery the remote database multiple times for each closed row. It would be more efficient if I could send a list of keys to the remote server and have it return all those rows. Any suggestions there? Any easy way to use something like an array of integers in a SQL parameter to return a list of items in a WHERE clause? I know i could do some stuff with cursors if I had to, but it doesn't seem like it should be that hard. 3) Any general thoughs on my algorithms or any suggestions for alternative ways of achieving this? I'm not married to a web service, but it seems the most efficient. I don't want to "push" changes from the remote server, i'd rather "pull". Thanks. Tag: Databinding a check list box Tag: 131949
  - 6
    - SQL2000 error: ... When connecting to SQL Server 2005 The complete error is : An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) Our db is SQL 2000 running on a Win 2003 cluster, where there is only one instance loaded. The client app is a Windows Service written in VS2005 that runs on a Windows 2000 server. We booted the cluster last night, now we're getting the above error in the service. Anybody else ran into this? Is the name of the default instance on a cluster MyServer\MSSQLSERVER ? Thanks Tag: Databinding a check list box Tag: 131947
  - 7
    - Speed and memory usage of Dataset I will start by saying I am somewhat new to ADO.net, that said here goes. I have a dbase file with 450,000+ records, (400MB+ file size) I am loading only the UniqueID field into a DataSet and I have 2 problems. 1. It takes about 45 seconds to load 2. It is consuming about 400MB of RAM at that point. Is this kind of behaivor to be expected? Sample code: string connString = "Provider=VFPOLEDB.1;Data Source=c:\\btest\\"; connNav = new OleDbConnection(connString); connNav.Open(); dsNav = new DataSet(); daNav = new OleDbDataAdapter("select id from test", connNav); daNav.Fill(dsNav, "test"); <-- Takes about 45 seconds The ID field is numeric. There are about 220 other fields in the table (It was this way when I started here). Any help would be appriciated. Doug Tag: Databinding a check list box Tag: 131946
  - 8
    - Multi-step OLE DB operation generated errors I'm getting the dreaded "Multi-step OLE DB operation generated errors" exception when trying to connect to a local Access 97 database. My program connects fine when run on other machines, but on one computer it's giving me problems and I can't figure out why. Everything on this computer is identical to the ones that work (with respect to my program, such as file locations, connection string, etc.). The stack trace looks like this: Error at: System.Data.OleDb.OleDbConnection.Open Error at: System.Data.OleDb.OleDbConnection.CreateProvider(OleDbConnectionString constr) Error at: System.Data.OleDb.OleDbConnection.CreateProviderError(Int32 hr) Error at: System.Data.OleDb.OleDbConnection.ProcessResults(Int32 hr) Has anyone experienced something like this before? I'm guessing it's a problem with system files? Any suggestions? - Don Tag: Databinding a check list box Tag: 131944
  - 9
    - Please Help! "Relation Relation1 cannot be merged, because keys have mismatch columns." "Relation Relation1 cannot be merged, because keys have mismatch columns." I get that error when I try to merge two datasets. Both datasets have a Relation named "Relation1". It is refering to the parent key, child key? How can i figure out which columns are messed up? Thank You! Tag: Databinding a check list box Tag: 131943
  - 10
    - Please Help! "Relation Relation1 cannot be merged, because keys have mismatch columns." "Relation Relation1 cannot be merged, because keys have mismatch columns." I get that error when I try to merge two datasets. Both datasets have a Relation named "Relation1". It is refering to the parent key, child key? How can i figure out which columns are messed up? Thank You! Tag: Databinding a check list box Tag: 131942
  - 11
    - Read XML and transform result table Hi, I have the following scenario: 1. I have an application which includes a database with a DataMain table. I have a Strong Typed DataSet (MyDB)having the DataMain typed DataTable in it. 2. I have an external xml with constant fields. i've created a xsd and a typed DataSet (Products) from it as well, containing a typed DataTable named Product. What I have to do is: a. ReadXML into the Product Typed table Here is what I don't know how to do: b. Transform the Products.Product to a MyDB.DataMain so that I can persists its data do the DB (transform one DataTable into another). c. Or somehow read the xml straight into the DataMain.DataTable. the DataMain.DataTable and the Products.Product have different column names (ID = ProductID, Name = ProductName...) etc. In adition I have a field in one of the tables which type is decimal whereas what i get from the XML is long (I need to calculate a decimal value from the long by dividing by 1000000) I guess I should search for columnMapping or XSLT info but I got lost, I would appreciate some help. -- Albert Benatov Skype: abentov http://albertbenatov.com Message posted via DotNetMonster.com http://www.dotnetmonster.com/Uwe/Forums.aspx/dotnet-ado-net/200608/1 Tag: Databinding a check list box Tag: 131940
  - 12
    - Timestamps, SQLServer, VS2005, ADO datasets and concurrency checking I'm using timestamps for concurrency checking when updating SQLServer from a modified dataset. After each insert or update, the new timestamp value is needed for a subsequent update. If the timestamp is treated as a timestamp, the original concurrency check works but each subsequent update fails. Here are the statements that don't work: SELECT NetMemberID, LoginName, FriendlyName, ApprovalStatus, MD5Password, TS FROM dbo.NetMember DELETE FROM [dbo].[NetMember] WHERE ([NetMemberID] = @Original_NetMemberID) AND (TS = @Original_TS) INSERT INTO [dbo].[NetMember] ([LoginName], [FriendlyName], [ApprovalStatus], [MD5Password]) VALUES (@LoginName, @FriendlyName, @ApprovalStatus, @MD5Password); SELECT NetMemberID, TS FROM NetMember WHERE (NetMemberID = SCOPE_IDENTITY()) UPDATE [dbo].[NetMember] SET [LoginName] = @LoginName, [FriendlyName] = @FriendlyName, [ApprovalStatus] = @ApprovalStatus, [MD5Password] = @MD5Password WHERE ([NetMemberID] = @Original_NetMemberID) AND (TS = @Original_TS);SELECT TS FROM NetMember WHERE (NetMemberID = @NetMemberID) Here are the statements that do work if the timestamp is cast as an integer: SELECT NetMemberID, LoginName, FriendlyName, ApprovalStatus, MD5Password, CAST(TS AS INT) AS TS FROM dbo.NetMember DELETE FROM [dbo].[NetMember] WHERE ([NetMemberID] = @Original_NetMemberID) AND (CAST(TS AS INT) = @Original_TS) INSERT INTO [dbo].[NetMember] ([LoginName], [FriendlyName], [ApprovalStatus], [MD5Password]) VALUES (@LoginName, @FriendlyName, @ApprovalStatus, @MD5Password); SELECT NetMemberID, CAST(TS AS INT) AS TS FROM NetMember WHERE (NetMemberID = SCOPE_IDENTITY()) UPDATE [dbo].[NetMember] SET [LoginName] = @LoginName, [FriendlyName] = @FriendlyName, [ApprovalStatus] = @ApprovalStatus, [MD5Password] = @MD5Password WHERE ([NetMemberID] = @Original_NetMemberID) AND (CAST(TS AS INT) = @Original_TS);SELECT CAST(TS AS INT) AS TS FROM NetMember WHERE (NetMemberID = @NetMemberID) Any thoughts on how to use timestamps without having to cast them as integers. Thanks Tag: Databinding a check list box Tag: 131938
  - 13
    - Failed to enable constraints but please tell me sth. Hello. I'm know, there is tones of pages in google, etc. about problem: "Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints." I'v read a lot, but this solutions doesn't resolve my problem. I'm using Strongly typed datasets, and ObjectDataSources. And I can't operate with DataSet property EnforceConstrains. Lets look at my tables. I have 2 tables pools ------------ pools_id (PK, int, autoinc) pools_title (varchar(50) pools_questions ------------ pools_questions_id (PK, int, autoinc) pools_id (FK, not null) pools_questions_question (varchar(50)) pools_questions_votes (int, not null) Everything is ok, when my data looks like this: pools ------------ 1, "Title one" pools_questions ------------ 1, 1, "Yes", 3 but when i have 2 or more rows with the same value in: pools_questions.pools_id for example: pools_questions ------------ 1, 1, "Yes", 3 2, 1, "No", 10 3, 1, "Other", 4 4, 1, "Some", 5 then that data configuration throws error. When I'v designed my tables with SQL Server Management Studio Express, I setup relationship with property Enforce Foreing Key Constarints: True, and False - this doesnt work for me. Please somebody help me with this problem. Thanks in advance. Darek Tag: Databinding a check list box Tag: 131935
  - 14
    - Loop Through a Folder of Excel Workbooks in VB.NET Hi, Can anyone tell me how to Loop Through a Folder of Excel Workbooks using VB.Net? I have a folder with Excel files. Each spreadsheet has multiple worksheets. I need to read each worksheet and get the data and transfer that data to a database table. I am not sure how to loop through Excel workbooks and get the worksheet name. I would appreciate any help with this. Thank you. Tag: Databinding a check list box Tag: 131927
  - 15
    - PARAMETERS/value in SQL, how to set? I would like to use access (for testing, then ASP.NET) to execute a query which uses another query where a value must be set like ID = 2 or so. How can i do that? Here is my example, i created Table2 with an ID field and a name field (totally useless but it's they idea what matters). Query2 is a total: SELECT Count(Table2.ID) As T FROM Table2 WHERE ID = ? Now i want QUERY1 to select it and fill ? Select * FROM QUERY2 WHERE ? = 1 Of course the WHERE ? part will not work. Please don't point me to parameters stuff in ado.net, i'm aware of those it the matter of preparing selects IN selects. Thanks, Tag: Databinding a check list box Tag: 131926
  - 16
    - Locking Datatable / Data Row Hello, if you have defined a DataSet in the HttpApplicationState which is shared by all current users ... what I have to do, to make the Dataset, DataTables and DataRows thread-safe? Following my assumptions: 1) If I change a Row: lock (datarow) { datarow["xy"] = value; } 2) If I add Rows lock (datatable) { datatable.Rows.Add(..) } 3) If I use the Fill method lock (datatable) { adpt.Fill(datatable); // what happens with changed or currently locked datarows? // e.g: process 1 locks row X of datatable A thread 2 wants to lock datatable A, is process 2 waiting for process 1 to unlock row A } 4) If I make AcceptChanges to DataTable or DataRow lock (datatable) { datatable.AcceptChanges(); } 5) For datatable.Remove (lock datatable) 6) For datarow.Delete() (lock datarow) 7) For dataset.Tables.Add() (lock dataset) 8) If I do a datatable.select(...) what a have to do to make it thread-safe? Is this correct or completly wrong? in your applicatoin writes on rows can only be done by one user at the same time, reading should be possible for all users "at the same time". Maybe yo have some answers... Tag: Databinding a check list box Tag: 131921
  - 17
    - Problems using SqlConnection When my application uses OleDb-provider like... Private Sub TryOleDbConnection() Try Dim i As Integer Using cn As OleDbConnection = New OleDbConnection() cn.ConnectionString = "Provider=sqloledb;MYSERVERNAME\MYINSTANCE;Password=xxx;User ID=sa;Initial Catalog=MYDBNAME" Using cm As OleDbCommand = New OleDbCommand() cm.Connection = cn cm.CommandText = "SELECT COUNT(*) AS X FROM MYTABLE" cn.Open() i = CType(cm.ExecuteScalar, Integer) cn.Close() End Using End Using MessageBox.Show(String.Format("answer={0}", i)) Catch ex As Exception MessageBox.Show(ex.Message) End Try End Sub ...It's working fine. BUT when my application uses Sql-provider similar way like... Private Sub TrySqlConnection() Try Dim i As Integer Using cn As SqlConnection = New SqlConnection() cn.ConnectionString = "Data Source=MYSERVERNAME\MYINSTANCE;password=XXX;User ID=sa;Initial Catalog=MYDBNAME;" Using cm As SqlCommand = New SqlCommand() cm.Connection = cn cm.CommandText = "SELECT COUNT(*) AS X FROM MYTABLE" cn.Open() i = CType(cm.ExecuteScalar, Integer) cn.Close() End Using End Using MessageBox.Show(String.Format("answer={0}", i)) Catch ex As Exception MessageBox.Show(ex.Message) End Try End Sub cn.Close()-line fails with Error Message: "An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)" Database is SQL Server 2005 Express running on other (WinXP Pro UK + SP2 + latest updates) computer. I think some setting(s) is incorrect in SQL Server settings, but what might it be? I can't connect this database on other computer using Microsoft SQL Server Management Studio Express of my (client) computer using Sql Server authentication with user name and password. Using Microsoft SQL Server Management Studio Express from localhost where the database is is working fine. Tag: Databinding a check list box Tag: 131913
  - 18
    - OleDB Stored Procedure returns Data Rows I'm trying to Exceute a Stored Procedure with OleDB in C# I've looked all over the net and can't seem to find how to do it and have had minimal sucess: here is the sniplet of code i'm using: #region Create TieWindow DataSet DataSet dsTieWindow = new DataSet(); DataTable tieWindowTable = new DataTable(); tieWindowTable.TableName = "TieWindow"; tieWindowTable.Columns.Add("TieIndex"); tieWindowTable.Columns.Add("ReferenceEntity"); tieWindowTable.Columns.Add("ContainerName"); tieWindowTable.Columns.Add("TieName"); tieWindowTable.Columns.Add("StartTime"); //...... keep adding columns, etc #endregion OleDbDataAdapter adapter = new OleDbDataAdapter(); OleDbCommand cmd = new OleDbCommand(); cmd.Connection = conn; //OleDB Parameter Objects to be used for all database modification #region Create OleDb Parameters OleDbParameter oMWin = new OleDbParameter("MWin", OleDbType.Double, 8, "MWin"); OleDbParameter oMWout = new OleDbParameter("MWout", OleDbType.Double, 8, "MWout"); OleDbParameter oStopTime = new OleDbParameter("StopTime", OleDbType.Date, 8, "StopTime"); OleDbParameter oStartTime = new OleDbParameter("StartTime", OleDbType.Date, 8, "StartTime"); OleDbParameter oInterfaceType = new OleDbParameter("InterfaceType", OleDbType.Integer, 4, "InterfaceType"); OleDbParameter oImportIntoSched = new OleDbParameter("ImportIntoSched ", OleDbType.Integer, 4, "ImportIntoSched"); ///....paramter, paramater, etc #endregion cmd.CommandType = CommandType.StoredProcedure; cmd.CommandText = "beta_operational.dbo.WS_tie_get_tie_window '" + lowerBoundDate + "', '" + upperBoundDate + "','" + "PNM" + "', 0"; cmd.Parameters.Clear(); cmd.Parameters.Add(oTieIndex); cmd.Parameters.Add(oReferenceEntity); cmd.Parameters.Add(oContainerName); cmd.Parameters.Add(oTieName); cmd.Parameters.Add(oStartTime); cmd.Parameters.Add(oStopTime); //....paramter, parameter, etc dsTieWindow.Tables.Add("TieWindow"); adapter.SelectCommand = cmd; adapter.Fill(dsTieWindow); =============================================== The Error I get is this: OleDb Connection Error:System.Data.OleDb.OleDbException: Syntax error or access violation at System.Data.OleDb.OleDbCommand.ExecuteCommandTextErrorHandling(Int32 hr) at System.Data.OleDb.OleDbCommand.ExecuteCommandTextForMultpleResults(tagDBPARAMS dbParams, Object& executeResult) at System.Data.OleDb.OleDbCommand.ExecuteCommandText(Object& executeResult) at System.Data.OleDb.OleDbCommand.ExecuteCommand(CommandBehavior behavior, Object& executeResult) at System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method) at System.Data.OleDb.OleDbCommand.ExecuteReader(CommandBehavior behavior) at System.Data.OleDb.OleDbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) at System.Data.Common.DbDataAdapter.FillFromCommand(Object data, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet) at.... What am i doing wrong? Thanks in advance. Tag: Databinding a check list box Tag: 131908
  - 19
    - change the database password (Access) ok, ya got me, how do I change the database password via code? Tag: Databinding a check list box Tag: 131907
  - 20
    - Retrieving schema for a stored procedure. I am able to retrieve the schema for a set of stored procedures by running each of the stored procedures and then calling GetSchemaTable but I don't want to run the stored procedure if it is going to modify the database. How can I get the output schema for a stored procedure either without having to execute the stored procedure or changing each stored procedure so that the INSERT, UPDATE, DELETE, etc. doesn't happen (but the schema is still returned). Thank you for your suggestions. Kevin Tag: Databinding a check list box Tag: 131900
  - 21
    - refresh from DataGridView to bound DataSet I can easily programmatically add a new row to a DataSet, fill the columns with the appropriate data and the new row is in the corresponding DataGridView is conveniently updated when the DataSet changes. Is there any way to do this in the other direction? That is, if the DateGridView is enabled to allow the user to add new rows by typing in the grid, is there some way to "push" this data back to the bound DataSet so that it stays in sync with the DataGridView. It doesn't appear to update the underlying database table when I do an Update on the data adapter. roy Tag: Databinding a check list box Tag: 131889
  - 22
    - Retrieving primary key of newly added record Hi all. I have three burning ado.net questions about using the DataAdapter.Update technique of updating data (rather than calling a stored proc explicty). I can't figure them out and I'm hoping it won't be too hard for some of you ado.net gurus out there! 1. Getting the PK of a new record Using the dataset.Update method to add a new row, how can I get the primary key of the record I just added (assuming that table's primary key field is an identity/autonumber one in SQL Server - that is SQL Server automatically generates one for the next record) without doing another explicit query of SELECT Max(PK_Field) FROM TABLE query. I'm worried that if I do another explicit query, I am open to the possibility of another Insert getting in inbetween the time I added the record and checked for the maxid. I know that is not too likely, but I would really like to eliminate the possibility all together as the project scales. I want to do something like this.. DataAdapter.Update(this.DataSet.Tables[0]); (this is the new table) this.DataSet.Tables[0].AcceptChanges(); newPrimaryKey = this.DataSet.Tables[0].Rows[0][PK FIELD NAME]; I'm curious about this under a. The scenario where the dataadapter.InsertCommand is simply a dynamic sql string, "INSERT INTO MY TABLE..." where the dynamic sql was derived using the CommandBuilder object: DataAdapter.SelectCommand = new SelectCommand("SELECT * FROM Orders WHERE Order_Id = -1",CN); CommandBuilder cb = new commandBuilder(); DataAdapter.InsertCommand = cb.GetInsertCommand(); b. The scenario where it is a stored procedure. 2. Adding a new record with one round trip To add a new row with dataadapter.update, I've been in the habit of first selecting a row from a table but setting the where clause to a condition I know will not be met, so I get back an empty row, so that I can have the table information needed to create the new row. This does cause a roundtrip however. DataAdapter.SelectCommand = new SelectCommand("SELECT * FROM Orders WHERE Order_Id = -1",CN); CommandBuilder cb = new commandBuilder(); DataAdapter.InsertCommand = cb.GetInsertCommand(); DataAdapter.Fill(myDataset,"Orders"); DataRow dr= myDataset.Tables[0].NewRow; dr["Amount"] = 12.34; dr['whatever"] = "x"; myDataset.Tables[0].Rows.Add(dr); DataAdapter.Update(myDataset.Tables[0]); myDataset.Tables[0]).AcceptChanges(); The 2 round trips needed for this is nothing fatal I guess, but I'd like to avoid it if possible, without having to completely manually construct the new DataRow (ie add columns to it in code, setting (in a hard-coded way) the types, lengths, names, etc of each of them). Does anyone know of a better way? finally... 3. Handling concurrency with stored procs. So I love the way that when you do DataAdapter.Update(ds), the dataadapter automatically handles concurrency issues. By concurrency issues, I mean: Person A loads rowX Person B loads rowX Person A saves his changes (with dataadapter.update) Person B saves his chnages (with dataadapter.update) rather than Person B overwriting Person A's changes, a concurrency error will be thrown. I think SQL is generated for the DataAdapter.UpdateCommand that checks to see that all the values of the fields are the same as when the object was originally loaded by this person (UPDATE TableX where PK=1 AND value1=origvalue, value2=origvalue, etc). My question is, if I do this DataAdapter.UpdateCommand = new command("MyCustomStoredProc"); have I lost this cool feature? Is there any way I can get it back? I know that was a lot. Thanks so much in advance to anyone that can help me out. Your help is greatly appreciated!! Regards, Jeff Tag: Databinding a check list box Tag: 131887
  - 23
    - newbie - simple Master/Details question Hi all, I am a bit of "noob" when it comes to using c#.NET datagrids, and always look at them in terms of what i could have done in VB6. I have been reading around, and understand the ideas and logic of DataSets, DataRelations, and DataTables. I understand how to populate a dataset, datatable, grid etc, and have even got as displaying a combobox in cell of the datagrid. However, I do not understand how to make relationships between multiple tables appear as I want them on the screen. For example, the following code I have used to populate data into a dataset, and establish the relationships between the data tables. This works fine, no problems: sqlAdap=new SqlDataAdapter(strSearch,sqlConn); SqlDataAdapter sqlAdap2 = new SqlDataAdapter("SELECT * FROM T_Recycle_Consignment_Detail",sqlConn); ds = new DataSet(); sqlAdap.Fill(ds,"T_Recycle_Consignment_Header"); sqlAdap2.Fill(ds,"T_Recycle_Consignment_Detail"); DataRelation Tran_Detail = new DataRelation("Items", ds.Tables[0].Columns["F_Consignment_ID"], ds.Tables[1].Columns["F_Consignment_ID"]); ds.Relations.Add(Tran_Detail); Where I am stuck, is that when I click on the "+" sign on the datagrid, I first get a link to DataRelation name "Items", which when I click it, it removes the parent grid, and just displays the child record(s). Basically what I am after is the MSHFlexGrid from VB6, which my users have always found really easy to use, and to understand. Can anyone shed any light on this problem, or refer me any sites that explain this? Many thanks, James. Tag: Databinding a check list box Tag: 131880
  - 24
    - creating a folder Hi , when we accessing some application from the server then a folder has to create on the client system . When accessing the application from server the folder has to created on the client system at any where. Any solution. Thanks in advance. Regards, Kamal. Tag: Databinding a check list box Tag: 131861
  - 25
    - How to supress deleting a Row Hello I have a DataGrid that a is bound to a DataTable. Some of the rows in the DataTable should not be deleted. How can I prohibit deleting of some identified rows? The problem could be specified in the following format too: There is a DataView object that I want to prohibit deleting of some of its DataRowView objects. that is: when drv.Delete() is called (drv is the identified DataRowView) it doesn't delete the DataRowView object (suppress that the Deleted tag is assigned to the RowState) . How can I do this job? Regards Hamed Tag: Databinding a check list box Tag: 131858

Hi

I have a check box list box on a windows form. How can I data bind it to an
access table. I don't need a multi-tier solution. Just a solution.

Thanks

Regards

Top

Re: Databinding a check list box by Dave

Dave
Sat Aug 19 21:18:02 CDT 2006

Hi,

I don't think CheckedListBox supports binding to list sources. You should just acquire the data and fill the Items collection in a
loop.

--
Dave Sexton

"John" <John@nospam.infovis.co.uk> wrote in message news:OLvwcj$wGHA.3904@TK2MSFTNGP02.phx.gbl...
> Hi
>
> I have a check box list box on a windows form. How can I data bind it to an access table. I don't need a multi-tier solution. Just
> a solution.
>
> Thanks
>
> Regards
>
>

Top

Re: Databinding a check list box by John

John
Sat Aug 19 21:38:31 CDT 2006

Sorry, how can I acquire the data?

Thanks

Regards

"Dave Sexton" <dave@jwa[remove.this]online.com> wrote in message
news:emoyg7$wGHA.2400@TK2MSFTNGP06.phx.gbl...
> Hi,
>
> I don't think CheckedListBox supports binding to list sources. You should
> just acquire the data and fill the Items collection in a loop.
>
> --
> Dave Sexton
>
> "John" <John@nospam.infovis.co.uk> wrote in message
> news:OLvwcj$wGHA.3904@TK2MSFTNGP02.phx.gbl...
>> Hi
>>
>> I have a check box list box on a windows form. How can I data bind it to
>> an access table. I don't need a multi-tier solution. Just a solution.
>>
>> Thanks
>>
>> Regards
>>
>>
>
>

Top

Re: Databinding a check list box by Dave

Dave
Sat Aug 19 22:07:02 CDT 2006

Hi John,

Use the OleDbConnection class. (FYI, this would be the data tier of your application):

OleDbConnection on MSDN (code example):
http://msdn2.microsoft.com/en-us/library/system.data.oledb.oledbconnection.aspx

ConnectionString Property on MSDN (examples of oledb connection strings):
http://msdn2.microsoft.com/en-us/library/system.data.oledb.oledbconnection.connectionstring.aspx

--
Dave Sexton

"John" <John@nospam.infovis.co.uk> wrote in message news:ukqK6GAxGHA.1284@TK2MSFTNGP05.phx.gbl...
> Sorry, how can I acquire the data?
>
> Thanks
>
> Regards
>
> "Dave Sexton" <dave@jwa[remove.this]online.com> wrote in message news:emoyg7$wGHA.2400@TK2MSFTNGP06.phx.gbl...
>> Hi,
>>
>> I don't think CheckedListBox supports binding to list sources. You should just acquire the data and fill the Items collection in
>> a loop.
>>
>> --
>> Dave Sexton
>>
>> "John" <John@nospam.infovis.co.uk> wrote in message news:OLvwcj$wGHA.3904@TK2MSFTNGP02.phx.gbl...
>>> Hi
>>>
>>> I have a check box list box on a windows form. How can I data bind it to an access table. I don't need a multi-tier solution.
>>> Just a solution.
>>>
>>> Thanks
>>>
>>> Regards
>>>
>>>
>>
>>
>
>

Top