GridDropDownStyle and combobox

[Administrator]

Hi together,

I have gridgroupingcontrol with a cell value of celltype "ComboBox". Furthermore the GridDropDownStyle attribute is set to "Exclusive". How can I prevent that a user can delete the content of this cell (then I get a blank cell with an down arrow on the right). I want that always one member of the dropdownlist is visible in the cell.

Cheers,
Markus

[Administrator]

Hi Markus

You can catch the pressing of Delete key in the TableControlCurrentCellKeyDown event and make its "Handled" property true if it is a combobox column.

private void gridGroupingControl1_TableControlCurrentCellKeyDown(object sender, Syncfusion.Windows.Forms.Grid.Grouping.GridTableControlKeyEventArgs e)
{
if(this.gridGroupingControl1.TableControl.CurrentCell.ColIndex == 3)
{
if (e.Inner.KeyCode == Keys.Delete || e.Inner.KeyCode == Keys.Back  )
					e.Inner.Handled = true;
}
				
}

Attached is a sample.

DeleteComboBox_3088.zip


            

[Administrator]

Thanks Mouli - that works!