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ASP.NET 2.0 Basics If you are new to ASP or ASP.NET programming with version 2.0, this is the forum to begin asking questions. Please also see the Visual Web Developer 2005 forum.
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Old March 11th, 2006, 10:11 PM
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Default DataAdapter.Update puzzle

In VS2005, variations on the code below work fine in XYZAdapter(Fill(XYZDataSet, "XYZTable")

        XYZAdapter = Nothing ' cleared it to make sure it wasn't already there
        XYZAdapter = DB.GetDataAdapter("XYZ") ' builds the adapter
        ' XYZAdapter.TableMappings.Add(XYZDataMap) ' works fine during Fill

        Dim XYZCmdBldr = New SqlCommandBuilder(XYZAdapter)
        XYZAdapter.Update(XYZDataSet, "XYZTable")

However, in the update attempt, when I comment out the TableMappings Line, I get:

>> Exception: Missing the DataColumn 'dbRecordType' in the DataTable 'XYZTable' for the SourceColumn 'dbRecordType'
(I map 'RecordType' to 'dbRecordType' in the mapping, which works during the Fill)

But when I include the TableMappings Line, I get:

>>Exception:The DataTableMapping is already contained by another DataTableMappingCollection.
(which I don't understand, at all)

Any help or debug suggestions on getting this Adapter.Update to work would be appreciated.

Thanks!
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Old August 1st, 2006, 06:57 PM
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