Datenabgleich?

funktioniert leider nicht.

hab momentan folgendes:

Dim ds As New DataSet
Dim da As New SqlDataAdapter("select * from Table_1", con)

'dataset füllen
da.Fill(ds, "a")

'Dim row As DataRow = ds.Tables(0).Rows(0)

Dim tbl As DataTable = ds.Tables(0)

For Each row As DataRow In tbl.Rows
row.BeginEdit()
row("famname") = "aaa"
row.EndEdit()
row.AcceptChanges()
Next

Dim objCommandBuilder As New SqlCommandBuilder(da)
da.Update(ds, "a")
 
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