When this runs it doesn't update the rows it inserts them.
Dim data_adapter As New OleDb.OleDbDataAdapter("SELECT * FROM thierorderguide WHERE Company = '" & lbCompanies.SelectedItem.ToString & "'", mainform.dbconnection)
Dim command_builder As New OleDb.OleDbCommandBuilder(data_adapter)
1.0 - Introduction
Converting Visual Basic 6.0 (VB6) to Visual Basic 2008+ (VB.NET).
If ever there was a subject full of murkiness and bad decisions, it is this one! The first problem seems to be that people considering this task of converting…