private void OnDialogClosed(object sender, EventArgs e)
 {
     dialog.B_Ensure.Click -= OnDialogEnsureClick;
     dialog.B_Cancel.Click -= OnDialogCancelClick;
     dialog.Closed         -= OnDialogClosed;
     dialog = null;
 }
 private void InitializeDialog()
 {
     dialog = new ModbusTableDialog();
     dialog.B_Ensure.Click       += OnDialogEnsureClick;
     dialog.B_Cancel.Click       += OnDialogCancelClick;
     dialog.Closed               += OnDialogClosed;
     dialog.WindowStartupLocation = WindowStartupLocation.CenterScreen;
 }