Timer.WriteReportLine("Datareader vor Conn-Open")
Try
            m_conn.Open()
            m_dr = m_cmd.ExecuteReader(CommandBehavior.CloseConnection)
            Timer.WriteReportLine("nach m_cmd.ExecuteReader")
            dt.Load(m_dr, LoadOption.OverwriteChanges)
            Timer.WriteReportLine("nach dt.Load")
Catch ex As Exception
            MessageBox.Show(ex.ToString)
Finally
            'Freigabe der Providerfactory-Objekte durch Dispose und 
            'anschließendem Nothing setzen.
            Call ObjectMemoryClean()
            Timer.WriteReportLine("nach ObjectMemoryClean")
End Try
 
Return dt