Question

SQLDataAdapter fill multiple tables in DataSource using one stored procedure

Asked by: cyman73

Hello experts,

I am fairly new to VB.NET and I am faced with the following problem:

I am trying to populate two tables in a dataset using a stored procedure.  The tables are unrelated and the stored procedure has two separate select statements.  When executing the stored procedure in SQL Server Management studio I can see two separate tables.

The dataset as defined in the VB.NET .xsd file has two table definitions.
My issue is that only the first table gets populated.  How can I use the same SqlDataAdapter.

Here is how the FillDataSet subroutine looks like

Protected Sub FillDataset(ByVal commandText As String, ByVal dataSet As DataSet, ByVal     tableNames As String())
try
     Dim sqlCommand As sqlCommand = New sqlCommand(commandText, _conn)          
     sqlCommand.CommandType = CommandType.StoredProcedure
     _da = New SqlDataAdapter(sqlCommand)
   
      'If I just call only the first table is filled.  
     _da.Fill(dataSet, tableNames(0)

    'If I just pass the dataSet
     _da.MissingSchemaAction = MissingSchemaAction.AddWithKey
    _da.Fill(dataSet)

     'I also tried to loop through the tables
     for iTableCount = 0 to tableNames.Length - 1
        _da.Fill(dataSet.Tables(iTableCount).DataSet, tableNames(iTableCount))
     Next

     ' I also tried adding tableMappings but still not success.


I try to determine if both tables were filled the following way:
ds.Table1.Rows.Count > 0
ds.Table2.Rows.Count = 0  ' Meaning that the table is empty.

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Asked On
2009-08-25 at 11:27:18ID24680892
Tags

sql

,

vb.net

,

data adapter

,

sqlcommand

Topics

.NET

,

SQL Server 2005

,

Databases Miscellaneous

,

Microsoft Visual Basic.Net

Participating Experts
2
Points
500
Comments
5

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Answers

 

by: cyman73Posted on 2009-08-27 at 10:15:12ID: 25200549

The simple question is how to fill dataset using SQLDataAdapter with bach sql statements (stored procedure)

Can anyone help?

 

by: shahprabalPosted on 2009-08-30 at 07:23:51ID: 25217750

Do you have two selects in your stored proc?
Also you need to add table mappings...
 and Datarelations if any...
Check out :
http://support.microsoft.com/kb/322793
http://www.eggheadcafe.com/conversation.aspx?messageid=32696857&threadid=32696845

 

by: mwvisa1Posted on 2009-08-30 at 07:28:49ID: 25217768

cyman73,

AFAIK, the syntax should be just to pass the dataset variable and the tables and associated names will automatically be created for you.  The first will be "Table" and the second "Table1".  If you pass with a tablename, then first will be "MyTableName"; second, "MyTableName1".  This is explained briefly here:

http://msdn.microsoft.com/en-us/library/bh8kx08z.aspx

For your code, see the snippet for a demonstration of what I am saying should be usage.

Protected Sub FillDataset(ByVal commandText As String, ByVal dataSet As DataSet, ByVal tableNames As String())
   Try
     Dim sqlCommand As sqlCommand = New sqlCommand(commandText, _conn)           
     sqlCommand.CommandType = CommandType.StoredProcedure
     _da = New SqlDataAdapter(sqlCommand)
   
    'If I just pass the dataSet
     _da.MissingSchemaAction = MissingSchemaAction.AddWithKey
    _da.Fill(dataSet) 
   Catch ex As Exception
 
   End Try
End Sub
 
''''' TO CHECK '''''
ds.Tables(0).Rows.Count 'first table
ds.Tables(1).Rows.Count 'second table

                                              
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by: mwvisa1Posted on 2009-08-30 at 07:30:34ID: 25217773

Sorry, shahprabal, I started typing before seeing your post.  @cyman73: the table mappings is an excellent addition and will help you to name the tables beyond the default naming I discussed.

20120131-EE-VQP-002

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