Update unable to find TableMapping['t003Akaun'] or DataTable 't003Akaun'.

[dan_nial]

Update unable to find TableMapping['t003Akaun'] or DataTable 't003Akaun'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: Update unable to find TableMapping['t003Akaun'] or DataTable 't003Akaun'.

Source Error:


Line 128: myDataAdapter2 = New SqlDataAdapter(query, sqlConn)
Line 129: DS = New DataSet()
Line 130: myDataAdapter2.Update(DS, "t003Akaun")
Line 131: ElseIf txtCredit.Text <> "0.00" Then
Line 132: jum2 = txtCredit.Text + txtBalance.Text

''how to solve it ??..

[jmcilhinney]

You've only just created a new DataSet so it's empty. You can't update a DataTable named "t003Akaun" in a DataSet that contains no tables.

Are you trying to retrieve data or save it? If you're retrieving data then you should becalling Fill, not Update. If you're saving then you need to have already retrieved that data into the DataTable. I'd suggest that you read some of the ADO.NET tutorials from the links in my signature.