How to discover required field

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- Previous
  - 1
    - Microsoft Oracle .NET Data Provider failure! Help! I have a web site that was just completed in .net using c#. There are a few places where the website needs to access an Oracle Database to get data to build some drop down lists for forms...etc. I build the site with Visual InterDev on my development server and access the web pages through IE 6.0 and everything seems fine. When I do a copy project, I copy only the files necessary to run the web site to my production server. When I try to view the web site on my production server I get the following error occuring on the lines containing "OracleDataAdapter.Fill(DataTable)" System.Data.OracleClient requires Oracle client software version 8.1.7 or greater. My production server has release 3 of Oracle 8i install and the Microsoft Oracle .NET Data Provider installed, along with Microsoft .NET Framework(English) v1.0.3705. Any ideas? Thanks - Bill Jones Tag: How to discover required field Tag: 66084
  - 2
    - Error 7631 Expected ''''' near .. I am querying data using full text indexing like: SELECT a, b, c FROM X WHERE whatever AND CONTAINS(fldField, 'john doe') and I get error 7631. Syntax error near 'doe'. Expected ''''' in search for 'john doe'. Can somebody help me with this please. I am querying from SQL Server. Thank you, -- Dino Buljubasic Software Developer http://rivusglobal.com Tag: How to discover required field Tag: 66083
  - 3
    - Distinct rows in a DataTable Hi, Which is the best way to copy all the distinct rows from one data table to another data table? Thanks, Rajiv Tag: How to discover required field Tag: 66082
  - 4
    - Setting DataView Filter Hello, I was wonder how you set your rowfilter property in a dataview to return rows in which a particular column has a null value. I tried, columnName is Null, but it does not like this. The documentation identifies ways to change the value returned when a column is NULL, but I don't see anything about selecting columns where the value is or is not a null value. Thanks in advance for your assistance!!!!!!!!!!! -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- Tag: How to discover required field Tag: 66081
  - 5
    - Error with SqlDataAdapter in Fill Method Hi all, I'm getting an error when my class calls the SqlDataAdapte.Fill(SomeDataSet) I have a SqlCommand object with a valid query and connection (this part works), I then set the SqlDataAdapter's SelectCommand = SqlCommand. I make a new DataSet such as: Dim SomeDataSet as DataSet = New Dataset, then call the .Fill The error is as follows: An unhandled exception of type 'System.Data.SqlClient.SqlException' occurred in system.data.dll Additional information: System error. I've looked online for help, but can't seem to find anything specific. Any help would be greatly appreciated. Thanks, Philip Tepedino ftepedino@swgs.net Database/Software Development Siemens Westinghouse Generation Services Tag: How to discover required field Tag: 66078
  - 6
    - System Tray Apps My turn to ask a question !! I want to create a program which runs in the system tray in VB.NET/Framwork. Can anyone point me to a good example ( In English please ). Thanks OHM Tag: How to discover required field Tag: 66071
  - 7
    - Urgent: please help with this as im now completley stuck Ive asked this a few times over the last few weeks and still im no further forward i have the following SQL string that im trying to use to retrieve data from a access database and place into a datagrid the problem seem to be arising with the Left(Personal.postcode,Len(personal.postcode)-2) AS Expr1 part of the statement because if i set the Len(personal.postocde)-2) to be -1 the whole thing works fine, similarly if is set it to -3, -4, or -5 it works great but not with -2 which is what i want, the row its working on can have a few possibilities for the data (being a UK postcode) which are: A1 1AA AA1 1AA AA11 1AA all i want to do is remove the last 2 characheters from the postcode but i cannot get it to work, ive worked on this for a few weeks now with no joy, if i put the SQL string into MS Access it works perfectly but not from my .net app - any help would be greatly appreciated, below is my code: SQLStr = "SELECT Left(Personal.postcode,Len(personal.postcode)-2) AS Expr1, LiveTracker.ID, LiveTracker.MortgageAppSubmitted, Closed.ID FROM ((Personal INNER JOIN PendingTracker ON Personal.ID = PendingTracker.ID) LEFT JOIN LiveTracker ON Personal.ID = LiveTracker.ID) LEFT JOIN Closed ON Personal.ID = Closed.ID ORDER BY personal.postcode;" da.SelectCommand = New OleDbCommand(SQLStr, ocon) da.Fill(ds) <--------------DEBUGGER STOPS HERE RowCount = ds.Tables(0).Rows.Count Me.DataGrid1.DataSource = ds.Tables(0) da.Dispose() ds.Dispose() ocon.Close() ocon.Dispose() Tag: How to discover required field Tag: 66068
  - 8
    - Different kind of db connection hallo everybody Does anyone know if it's possible to connect to a different database from access and sql server I work with perversive db and dont know how to connect to it. there are only access and sql server adapters available. if it so could anyone tell me how to do it? Tag: How to discover required field Tag: 66064
  - 9
    - pending local transaction Is there anyway to determine if the OleDbConnection is in a pending local transaction? thanks, Shawn Tag: How to discover required field Tag: 66063
  - 10
    - Values in a new datatable row Hi all, I have a very simple question: how to set default values in a new table row? 1. DataTable.RowChanged does not work if I have gui controls bound to the table, because it fires after the new record is accepted. 2. DataColumn.DefaultValue does not work either - what if I want to store the exact row-creation time? 3. CurrencyManager.PositionChanged does not work either - what if I don't have controls bound to to table. So, where is the DataTable.OnNewRow event ??? Regards radi Tag: How to discover required field Tag: 66061
  - 11
    - QueryBuilder and OLEDB I'm using VS .NET 2003 ASP.NET project C#. If I create a query like this in the query builder (using the selectcommand of a oledbDataAdapter) SELECT * FROM TABLE WHERE ID IN (?) and pass the parameters in this way myDataAdapter.SelectCommand.Parameters["paramName"].Value="'COD1','COD2'"; when I fill the dataset I obtain no rows. If I change the commandtext in SELECT * FROM TABLE WHERE ID IN ('COD1','COD2') I obtain 10 rows when fill the dataset. Can someone help me? Thanks Gianluca Miseria Tag: How to discover required field Tag: 66058
  - 12
    - Unecessary spaces in table. Why the hell is it that whenever I open a page in VS.net it always shoves blank spaces before all of my text fields. I am sick of this. I keep having to remove them every time I open the page. Tag: How to discover required field Tag: 66057
  - 13
    - some problem in System.Data with delete Hi to all I try to delete row from DataTable. When I make row.Delete sometimes I get this exception System.ArgumentOutOfRangeException I trace a little bit the problem and I think found something When I make delete in DataTable is invoked RecordStateChanged which in Turn meke this int i = LiveIndexes.Count; and then for (int j = 0; j < i; j++) { if (record1 != -1 && record2 != -1) { ((Index)indexes[j]).RecordStateChanged(record1, oldState1, newState1, record2, oldState2, newState2); } ... From here we see that this method calls RecordStateChanged in System.Data.Index and some times the LiveIndexes.Count is changed, but i is unchanged and here comes the problem If in the beginning i = 21, after this call LiveIndexes.Count = 20 , but i is still 21 and it make access by index 20 which course exception. I think that because System.Data.Index. RecordStateChanged fire event OnListChanged which in turn can change indexes ArrrayList. Can somebody help to resolve the probem? Thanks Tag: How to discover required field Tag: 66054
  - 14
    - Transaction with oledbCommandBuilder Hello, I want to give transaction support with Commands generated by OledbCommandBuilder, can anybody tell me how to do that. Regards, Devdatta Tag: How to discover required field Tag: 66050
  - 15
    - how can I make the dataadapter to return multiple recordsets? I want to use adapter.Fill(ds); to get the data result, and I hope this can contain two or more recordsets in the dataset, then I can use ds.tables[i] to access the different recordsets. thanks Tag: How to discover required field Tag: 66049
  - 16
    - VB.NET Retrieving Identity form MSSQL2000 without using stored procedures Hello! I have a problem. I'm using a dataset in VB.NET with multiple tables with relations between them. I would like dataset to update to all related tables with right identity, when certain record is added. The problem is that I don't know how to do it, when I'm not using stored procedures. I found an article in which OnRowUpdated event of the dataadapter is used. On this event ExecuteScalar method of the oledbcommand object is called to retrieve "@@Identity" http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/htm l/cpconretrievingidentityorautonumbervalues.asp But this example was for Access 2000 database. I tried to translate it for MSSQL 2000 but ExecuteScalar always returns null. In the same article there's an example which calls a stored procedure in a insert command. In that case everything is working perfectly, all child tables in dataset are automatically changed. Does anybody have any idea how to solve this? Regards, Taras Tag: How to discover required field Tag: 66047
  - 17
    - Basic Question - But is Stopping me... any help? how to add items and update the index of the relationship table automatically? A sample of the problem : I have 2 tables with a relationship n..n so this means that the relationship is also generating a table so what kind of code I can use to do this. table 1 has the name of the persons : table 2 has the car that this person have... Note that I already have the peoples name filled with some records. first table has a PK let's call table1_rowid second table has a PK ... table2_rowid then the relationship m to n is generating a tbl1_tbl2 where I have two fields table1_rowid and table2_rowid When I'll add a new record in the table2 for the person that has the table1.rowid =1 what is the code that I can use to automattically fill the necessary information in the relationship table tbl1_tbl2?????? No doubt that exist some code to that automattically in the new ado.net or regular oledb.... objects in the DOTNET??? Any idea, to make my life easier? Tag: How to discover required field Tag: 66043
  - 18
    - Reading output parameter from stored procedure...... In my ADO.Net coding I am using SQLCommand and SQLParameter to run stored procedure. Can any one advice me how to read the output parameter from a stored procedure. I am using SQL Server 2000. Gish Smith Tag: How to discover required field Tag: 66041
  - 19
    - "Generate Dataset" for custom data provider Hello, my company offers a set of ado.net components for its own database format and we want to respond to the general "Generate Dataset", "Preview Data" and "Configure Data Adapter" commands in the menus. In Visual Studio 2002 we had found a dirty trick to enable those commands but this doesn't work with VS 2003 anymore. The question now is whether there is now an official way to support those commands for custom data providers. Or has somebody found another way to activate them? Any help apreciated Peter Tag: How to discover required field Tag: 66027
  - 20
    - Filling a DataSet from a sql query against a XML schema Hi I'd like to know if it's possible, with an OleDbProvider, to fill a dataset from a sql squery against a XML schema. For exemple, i have this OleDbCommand : SELECT computer.name, processor.frequency, soundCard.model FROM computer INNER JOIN processor ON computer.processor_id = processor.id LEFT OUTER JOIN soundCard ON computer.soundCard_id = SoundCard.id After I use an OleDbDataAdapter to fill a dataset whose name is "computers". And I want to have to get the Xml data of this dataset. The result i want (by getting Xml) is <computers> <computer> <name>My Computer</name> <processor> <frequency>3Hz</frequency> </processor> <soundCard> <model>16 Bits sound card</model> </soundCard> </computer> </computers> But I have : <computers> <computer> <name>My Computer</name> <frequency>3Hz</frequency> <model>16 Bits sound card</model> </computer> </computers> I tried to load a schema into the dataset with ReadXml method but it seems that it doesn't work after the oleDbDataAdapter Fill method. I tried Microsoft SQLXML but it's still incomplete and very slow. So If someone knows if the thing i want to do is possible, please answer. Thanks Monorom SARIN Tag: How to discover required field Tag: 66026
  - 21
    - Two DataGrids on One Form? Could be simple solution, but I can't findcontrol !!! I have the something like the following data structure: Users users_ID, orgs_ID, users_email, users_password, etc. Orgs orgs_ID, orgs_name, orgs_description, etc. I have a single form with two datagrids. I have loaded one dataset with two tables. There is only a single record at any time in each of the tables in the bound dataset. I bind the first datagrid to one datatable, and the second datagrid to another datatable. Both datagrids seem to populate just fine in edit mode, but... My UPDATE routine is fired on the update command of the first user_profile datagrid. SO THE PROBLEM IS: I can't findcontrol for the org_id in the second datagrid. The key issue here is the need to easily enable additional records to be added to the second datagrid, to enable the registration of different orgs. Anyone know about using multiple datagrids (not necessarily nested) on the same page? Just to prove I have NO idea what I'm doing, here's some of my code my code (simplified)... CODE SNIPPET Private Sub user_profile_update(Sender As Object, E As DataGridCommandEventArgs) If page.isValid Then Dim main_email As TextBox = e.Item.FindControl("main_email") Dim main_password As TextBox = e.Item.FindControl("main_password") Dim org_id As DropDownList = CType(FindControl("org_id"), DropDownList) data_set = load_user_data() Dim data_table as String data_table = "main_identity" If data_set.tables(data_table).Rows.Count > 0 Then With data_set.tables(data_table).Rows(0) .Item("main_email") = main_email.Text .Item("main_password") = main_password.Text .Item("org_id") = org_id.selecteditem.value <<<<<< ERROR ERROR System.NullReferenceException: Object reference not set to an instance of an object. End With End If user_profile.EditItemIndex = -1 org_profile.EditItemIndex = -1 bind_profiles() ViewState("Add") = "Off" ViewState("Edit") = "Off" End If End Sub <form runat="server" name="profile"> <ASP:DataGrid id="user_profile" runat="server" Autogeneratecolumns="false" MaintainState="false" Border="0" Cellspacing="0" Cellpadding="0" ShowFooter="true" OnEditCommand="user_profile_edit" OnCancelCommand="user_profile_cancel" OnUpdateCommand="user_profile_update" DataKeyField="main_id"> <Columns> <asp:EditCommandColumn EditText="Edit" CancelText="Cancel" UpdateText="Update" /> <asp:BoundColumn DataField="main_id" ReadOnly="True" visible="false"/> <asp:TemplateColumn> <ItemTemplate> Email Address: <%# Container.DataItem("main_email") %><br> Password: <%# Container.DataItem("main_password") %><br> </ItemTemplate> <EditItemTemplate> Email Address: <asp:TextBox id="main_email" Size="7" Text='<%# Container.DataItem("main_email") %>' runat="server"/><br> Password: <asp:TextBox id="main_password" Size="7" Text='<%# Container.DataItem("main_password") %>' runat="server"/><br> </EditItemTemplate> </asp:TemplateColumn> </columns> </asp:datagrid> <ASP:DataGrid id="org_profile" runat="server" Autogeneratecolumns="false" MaintainState="false" Border="0" Cellspacing="0" Cellpadding="0" ShowFooter="false" ShowHeader="false" DataKeyField="org_id"> <Columns> <asp:EditCommandColumn visible="false" EditText="Edit" CancelText="Cancel" UpdateText="Update" /> <asp:BoundColumn DataField="org_id" ReadOnly="True" visible="false"/> <asp:TemplateColumn> <ItemTemplate> Organization Name: <%# Container.DataItem("org_name") %><br> Organization Type: <%# Container.DataItem("org_type_id") %><br> </ItemTemplate> <EditItemTemplate> Organization Name: <asp:dropDownList id="org_id" DataSource='<%# load_dropdown_data("organization_company","org_id","org_name","Other") %>' DataValueField="org_id" DataTextField="org_name" runat="server" SelectedValue = '<%# DataBinder.Eval(Container.DataItem, "org_id")%>' /> </EditItemTemplate> </asp:TemplateColumn> </columns> </asp:datagrid> </form> Thanks! Drew ssoss Tag: How to discover required field Tag: 66024
  - 22
    - dataAdapter'rs command statements Do I need to fill all the 3 commands ( InsertCommand, DeleteCommand and UpdateCommand), even though I'm using only one of them ? Like if I wants to update records in db, I'm sure that I have to assign the UpdateCommand, in this scenario, do I need to assign the Insert and Delete statements also ? TIA Kishore Tag: How to discover required field Tag: 66019
  - 23
    - SqlDataReader recordsaffected Hi. Just reading about the sqldatareader object I am confused about the recordsaffected property. The example on the help docs use a procedure with some inserts and a select. Can I use a datareader object to run sql commands that does not return records? What is the advantage of using a datareader.recordsaffected instead of command.executenonquery, since the later also can give me the records affected? Regards, Chris Leffer *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it! Tag: How to discover required field Tag: 65998
  - 24
    - Trouble clearing SqlParameters from my Command object (note - sorry for the crosspost - I sent to .vb thinking i was sending to .adonet). I implemented a very small, basic data access layer for my web application. It works just fine, except for this one bug. One of my methods returns an abstracted dataset. To accomodate X number of input parameters, I created a function signature that accepts a ParamArray of SqlParameters as well as the name of the stored proc. In the body of the function I loop through the param array and append each object to the Parameters collection of my Command object. The problem comes up when I try to append a SqlParameter object that I have already used in a previous call, that is also an argument for the next stored procedure. For example, I have: dim objParam1 as New SqlParameter("@userid", intUserid) dim objDS as DataSet objDS = objDAL.GetDataSet("storedprocname", objParam1) ' do some stuff with the dataset, now try a new query, different proc, same parameter objDS.clear() objDS = objDAL.GetDataSet("anotherprocname", objParam1) The error returned is something like "There is already a parameter named objParam1 in the SqlParametersCollcetion. Prior to adding each parameter, I check its count and, if greater than 0, remove each item before appending the new params. In debugging the count is always 0, so how can there be an SqlParameter object in its collection? ' create our command object with the passed in ProcedureName. ' and sqlparameter object. Dim objCommand As New SqlCommand(ProcedureName, Me.Connection) Dim sqlParam As SqlParameter objCommand.CommandType = CommandType.StoredProcedure Me.LocalCommand = objCommand If objCommand.Parameters.Count > 0 Then ' in case any parameters are hanging around, clear them out For Each sqlParam In objCommand.Parameters objCommand.Parameters.Remove(sqlParam) Next End If objCommand.Parameters.Clear() ' add the parameters passed in from the ParamArray ' into the command's parameters collection. For Each sqlParam In DataParameters sqlParam = objCommand.Parameters.Add(sqlParam) ' ERROR THROWN HERE Next What element am I missing please? This has me bending my brain pretty badly. Thank you in advance. Tag: How to discover required field Tag: 65997
  - 25
    - SqlDataAdatper Bug? I am new to .Net but have been unable to find anything about this in the newsgroups. Using C# and the following SQL stored procedure in my SqlDataAdapter: CREATE PROCEDURE HouseholdNextPrevious @PassedName varchar(150), @Direction varchar(4) AS Set NoCount on if @Direction = 'down' /* next household */ begin SELECT TOP 1 BuildingId, LabelName, Street1, Street2, City, StateProvince, Zipcode, Country, Phone, PhoneNote, Household.CellPhone, Fax, NoNewsletter, NoAppeal, NoCalendarAnnouncement, NoFlyer, Household.InactiveId, FirstConnectionId, Salutation, ICodeId, IncomeId, PrimaryContactId, Household.Note, Household.LastEditDate, SortName = isnull(LastName + ' ' + FirstName + ' ' + isnull(MiddleInitial,'') + Convert(varchar(40),Household.BuildingId),'aaaaa' + Convert(varchar(40),Household.BuildingId)) FROM Household LEFT OUTER JOIN Individual on IndividualId = PrimaryContactId where (isnull(LastName + ' ' + FirstName + ' ' + isnull(MiddleInitial,'') + Convert(varchar(40),Household.BuildingId),'aaaaa' + Convert(varchar(40),Household.BuildingId))) > @PassedName order by SortName asc end else /* previous household */ begin SELECT TOP 1 BuildingId, LabelName, Street1, Street2, City, StateProvince, Zipcode, Country, Phone, PhoneNote, Household.CellPhone, Fax, NoNewsletter, NoAppeal, NoCalendarAnnouncement, NoFlyer, Household.InactiveId, FirstConnectionId, Salutation, ICodeId, IncomeId, PrimaryContactId, Household.Note, Household.LastEditDate, SortName = isnull(LastName + ' ' + FirstName + ' ' + isnull(MiddleInitial,'') + Convert(varchar(40),Household.BuildingId),'aaaaa' + Convert(varchar(40),Household.BuildingId)) FROM Household LEFT OUTER JOIN Individual on IndividualId = PrimaryContactId where (isnull(LastName + ' ' + FirstName + ' ' + isnull(MiddleInitial,'') + Convert(varchar(40),Household.BuildingId),'aaaaa' + Convert(varchar(40),Household.BuildingId))) < @PassedName order by SortName desc end When I generate the dataset based on the above stored procedure, it constructs two tables (HouseholdNextPrevious and Table1) in the dataset which have identical columns. If I use an OledbDataAdapter, it only contructs one table in the dataset (HouseholdNextPrevious). Any insight as to why this is happening? Thanks, Tag: How to discover required field Tag: 65995
- Next
  - 1
    - Shouldn't An Exception Be Thrown - Establishing a Primary Key Hello, I was setting the primary key on a table which was a collection of 3 columns. I mispelled the name of the second column when I built the array of collumns when I created the array of collumns for the primary key. When I used the "dt.primarykey(myArrayOfKeys)" no exception was thrown, and rather then the primary key being a set of 3 columns, it was only a single column. When you make this type of mistake when setting foreign keys, that process throws and exception. Why the inconsistency? -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- Tag: How to discover required field Tag: 65994
  - 2
    - CommandTimeout property Clarification I have a stored proc that runs and calls others and sometimes the process runs for 3 to 5 minutes depending on traffic. ASP.NET - ADO.NET - Sql 2000 Code - dim cmdV as sqlcommand = new sqlcommand("ValidateUpdatePrograms",cnOAP) cnoAP.Open() cmdV.ExecuteNonQuery() cmdV = nothing cnoap.Close() Does the CommandTimeout property refer to the time to wait until a command starts processing or does it refer to how long a command can process before it is considered overdue? If it is the second case will sql actually stop in the middle of processing? Currently I am getting Application Unavailable in the browser after the Machine.config setting responseDeadlockInterval has been exceeded. I will set this higher. But I am wondering if sql is still processing and the web server times out, will sql continue processing until it is done? I have tested and it seems like it does. It seems like it will also stick with the command until it is done no mater how long it takes. I have not set the CommandTimeout. I am trying to figure out how to make sure sql doesn't stop. Thanks! Tag: How to discover required field Tag: 65991
  - 3
    - Connection Pools I have an app that I have recently been testing to try an determine the cause of this Timeout Expired issue. I am using the performance monitor to check the # of connection pools as well as the # number of pooled connections. When I start the app and the user logs in a pool & connection is created and all is well. However when I shut down the app the pool does not go away. Then if I start the app again another pool and connection are created and soon, and so on?? Does anyone have any idea how I should deal with this? Should the pool created by the app be detroyed when the app is no longer in memory. By the way I am using CLR .Net Data for the specific app, not _global. Tag: How to discover required field Tag: 65983
  - 4
    - DataTable schema changes I need to handle dynamic changes to a table's schema, even when there is already data present. It appears that the only thing supported by DataTable is to remove a column so I am pulling all the data out into a 2D array, performing my manipulations on the raw data, and then clearing out the table's Rows and Columns collections and attempting to recreate them. Basically, Rows.Clear(); Columns.Clear(); RebuildColumns(/*...*/); RebuildRows(/*...*/); Where I rebuild the columns from a separate list of schema parameters that I have available and then rebuild the rows from the 2D array of raw data that I originally pulled from the table. For a simple test I am trying to remove the third column from a four column table (something that I suppose I could have done simply via Columns.RemoveAt, but am trying this way as a test). The problem is that when I'm adding the rows back, I'm getting an exception thrown on adding the second row: System.IndexOutOfRangeException "Cannot find Column 3" System.Data.DataTable.InsertRow Can anyone shed some light on this for me? Thanks in advance. -- Thomas Brown Tag: How to discover required field Tag: 65982
  - 5
    - OleDbConnection.Open very slow on ASP.NET App running under XP??? Does anybody know why when connecting to an Oracle database from a ASP.NET web app running under Windows XP, the connection is very slow. It takes about 2 minutes to open the database connection. The same code running on a NT2000 machine executes in under 4 seconds. To test this, is very simple On an XP machine, create a new ASP.NET app and create a new OleDbConnection object. Assign a valid connection string and execute the Open statement. That is it. The connection string I used was: Private f_cConn As String = "Provider=MSDAORA.1;Password=JJ;User ID=JJ;Data Source=OLT" ANy help is greatly need and appreciated. Tag: How to discover required field Tag: 65981
  - 6
    - The same table (types) cannot be the child table in two nested relations. I have a Schema describing an XML feed i'm receiving. The problem is, when i load it i get the above error. In this schema i have several fields describing an article. Two of these fields(tables) are called videos and sounds. They both contain a complex type (table) called Types which contain from 0-unbound number of "type" elements. So the case is. Both the sounds and the videos nodes have types/type nodes, which won't map to my DataSet. I don't think i can get the xml provider to change the format, but is there any way i can add something to the schema to allow the "same table" twice? Thanks in advance Per Here is an example to describe the problem: <xs:element name="sounds"> <xs:complexType> <xs:sequence> <xs:element name="sound" minOccurs="0" maxOccurs="unbounded"> <xs:complexType> <xs:sequence>  <xs:element name="types" > <xs:complexType> <xs:sequence> <xs:element name="type" type="xs:string" maxOccurs="unbounded" minOccurs="0" /> </xs:sequence> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="videos"> <xs:complexType> <xs:sequence> <xs:element name="video" minOccurs="0" maxOccurs="unbounded"> <xs:complexType> <xs:sequence>  <xs:element name="types" > <xs:complexType> <xs:sequence> <xs:element name="type" type="xs:string" maxOccurs="unbounded" minOccurs="0" /> </xs:sequence> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element> Tag: How to discover required field Tag: 65980
  - 7
    - dataset.haschanges=false allthough change have been made I have the following problem: I have a dataset with one table. I bind the fields of the table to several entities like textboxes etc. Now I change the values of a row of the table through the textboxes. The value in the table of my dataset has changed (I checked it) but my dataset still has the status .haschanges=false??? Why? Regrads, Christoph Tag: How to discover required field Tag: 65975
  - 8
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  - 18
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  - 21
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Hi

How to discover that field should be set.
This is Access database.

Thanks
Konrad

Re: How to discover required field by William

William
Wed Sep 17 13:11:27 CDT 2003

Not sure if I understand, but if you are looking to see if a field allows
nulls or not (if not, you have to put something in it), then this should
work. However, if you have a defaultvalue, then it can no allow nulls but
still not be required per se.

foreach( DataColumn dc in dt.Columns )
{
listBox1.Items.Add(dc.ColumnName+" , "+dc.DataType +" ,"+dc.Unique +"
,"+dc.AutoIncrement+" ,"+dc.AllowDBNull + ", " + dc.DefaultValue );
}

}

dc.AllowDBNull will be true if it's not required.

"Konrad" <konrad007@poczta.onet.pl> wrote in message
news:bka2gu$cu6$1@nemesis.news.tpi.pl...
> Hi
>
> How to discover that field should be set.
> This is Access database.
>
> Thanks
> Konrad
>
>

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Re: How to discover required field by stevenbr

stevenbr
Wed Sep 17 17:20:20 CDT 2003

Thanks for the excellent answer, William!

Steven Bras, MCSD
Microsoft Developer Support/Data Access Technologies

This posting is provided "AS IS" with no warranties, and confers no rights.

Microsoft Security Announcement: Have you installed the patch for Microsoft
Security Bulletin MS03-026? If not Microsoft strongly advises you to
review the information at the following link regarding Microsoft Security
Bulletin MS03-026
http://www.microsoft.com/security/security_bulletins/ms03-026.asp and/or to
visit Windows Update at http://windowsupdate.microsoft.com to install the
patch. Running the SCAN program from the Windows Update site will help to
insure you are current with all security patches, not just MS03-026.

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