Private Sub txtArticleNumber_LostFocus(sender As System.Object, e As _
      System.EventArgs) Handles txtArticleNumber.LostFocus
        Try
            Format(Convert.ToInt32(txtArticleNumber.Text), "0000000#")
 
        Catch ex As Exception
            Console.WriteLine("EXCEPTION: " & ex.ToString)
        End Try
 
    End Sub