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How to restrict the operations of delete and backspace key of DateTimePicker in WinForms GridControl?

Platform: WinForms |
Control: GridControl

Restrict operation of delete and backspace key

To restrict specific keys in Date time picker cells, you need to use CurrentCellKeyDown event and validate using key code.


//MonthCalendar celltype
this.gridControl1[1, 2].Text = "MonthCalendar";
this.gridControl1.ColWidths[2] = 100;
this.gridControl1[2, 2].CellType = GridCellTypeName.MonthCalendar;
//Event Handler
this.gridControl1.CurrentCellKeyDown += gridControl1_CurrentCellKeyDown;
 void gridControl1_CurrentCellKeyDown(object sender, KeyEventArgs e)
            //To restrict the operations of delete key.
            int rowIndex = this.gridControl1.CurrentCell.RowIndex;
            int columnIndex = this.gridControl1.CurrentCell.ColIndex;
            if (this.gridControl1[rowIndex,columnIndex].CellType  == GridCellTypeName.MonthCalendar 
                && (e.KeyCode == Keys.Delete))
                e.Handled = true;



'MonthCalendar celltype
 Me.gridControl1(1, 2).Text = "MonthCalendar"
 Me.gridControl1.ColWidths(2) = 100
 Me.gridControl1(2, 2).CellType = GridCellTypeName.MonthCalendar
'Event Handler
 Me.gridControl1.CurrentCellKeyDown += gridControl1_CurrentCellKeyDown
Private Sub gridControl1_CurrentCellKeyDown(ByVal sender As Object, ByVal e As KeyEventArgs)
  'To restrict the operations of delete key.
   Dim rowIndex As Integer = Me.gridControl1.CurrentCell.RowIndex
   Dim columnIndex As Integer = Me.gridControl1.CurrentCell.ColIndex
   If Me.gridControl1(rowIndex,columnIndex).CellType Is GridCellTypeName.MonthCalendar AndAlso (e.KeyCode = Keys.Delete) Then
 e.Handled = True
   End If
End Sub



Restrict operation of delete and backspacekey of datetimepicker



C#: RestrictKeys_CS

VB: RestrictKeys_VB


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