How to use the CheckBoxClick event when the CheckBox state changes by space key in WinForms GridControl?
Events
In the WinForms GridControl, by default CheckBoxClick event is raised, when you change the CheckBox state on Mousecklick. On using the space key, the CheckBox state is changed, but the CheckBoxClick event is not fired. To resolve this, the CheckBoxClick event can be manually raised by using the RaiseCheckBoxClick method. This method is called by using the CurrentCellKeyDown event.
The following code example is for calling the CheckBoxClick event in the CurrentCellKeyDown event.
// Hooks the CheckBoxClick event
this.gridControl1.CheckBoxClick += new GridCellClickEventHandler(gridControl1_CheckBoxClick);
// Hooks the CurrentCellKeyDown event
this.gridControl1.CurrentCellKeyDown += new KeyEventHandler(gridControl1_CurrentCellKeyDown);
void gridControl1_CurrentCellKeyDown(object sender, KeyEventArgs e)
{
// validates the Key pressed.
if (e.KeyCode == Keys.Space)
{
GridCurrentCell cc=this.gridControl1.CurrentCell ;
if (this.gridControl1[this.gridControl1.CurrentCell.RowIndex, this.gridControl1.CurrentCell.ColIndex].CellType == GridCellTypeName.CheckBox)
{
//Raises the CheckBoxClick event.
this.gridControl1.RaiseCheckBoxClick(cc.RowIndex, cc.ColIndex, MouseEventArgs.Empty as MouseEventArgs);
}
}
}
void gridControl1_CheckBoxClick(object sender, GridCellClickEventArgs e)
{
Debugger.Break();
}' Hooks the CheckBoxClick event
AddHandler gridControl1.CheckBoxClick, AddressOf gridControl1_CheckBoxClick
' Hooks the CurrentCellKeyDown event
AddHandler gridControl1.CurrentCellKeyDown, AddressOf gridControl1_CurrentCellKeyDown
Private Sub gridControl1_CurrentCellKeyDown(ByVal sender As Object, ByVal e As KeyEventArgs)
'validates the Key pressed.
If e.KeyCode = Keys.Space Then
Dim cc As GridCurrentCell=Me.gridControl1.CurrentCell
If Me.gridControl1(Me.gridControl1.CurrentCell.RowIndex, Me.gridControl1.CurrentCell.ColIndex).CellType Is GridCellTypeName.CheckBox Then
'Raises the CheckBoxClick event.
Me.gridControl1.RaiseCheckBoxClick(cc.RowIndex, cc.ColIndex, TryCast(MouseEventArgs.Empty, MouseEventArgs))
End If
End If
End Sub
Private Sub gridControl1_CheckBoxClick(ByVal sender As Object, ByVal e As GridCellClickEventArgs)
Debugger.Break()
End SubNote:
Here, MouseEventArgs are passed as Empty to the CheckBoxClick event. So, in this case, you can’t use mouse arguments inside the CheckBoxClick event.
Samples:
Conclusion
I hope you enjoyed learning about how to use the CheckBoxClick event when the CheckBox state changes by the space key in the WinForms GridControl.
You can refer to our WinForms GridControl feature tour page to know about its other groundbreaking feature representations and WinForms GridControl documentation, and how to quickly get started for configuration specifications.
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