Hello, I have a VS 2003.NET application that connects to a Access database. I want to make its code work in VS 2005. Here is the code for VS 2003 .NET: da1.UpdateCommand.CommandText = "update TABLE1 set FIELD1 = " & value2 & " where FIELD1 = " & value1 return_val = da1.UpdateCommand.ExecuteNonQuery() If return_val = 0 Then da1.InsertCommand.CommandText = "insert into TABLE1(FIELD1) values (" & value2 & ")" da1.InsertCommand.ExecuteNonQuery() End If How could I change dataAdapter (da1) to a tableAdaper to implement this function. Thanks for the help!