GGC Checkbox header in grouped row.

[Kai]

Hi, I would like to add a checkbox in the grouped header of a GGC grid. So when a user click on the checkbox, it will check/uncheck all the checkboxes in a column of that particular group. How can I do that? Many thanks.

[Administrator]

Hi Kai,

To add a checkbox in the grouped rowheader of a grouping grid, you need to change the celltype of the GroupCaptionRowHeaderCell to CheckBox and , handle the TableControlMouseDown event /QueryCellStyleInfo event to achieve the required behaviour. Please find the attachment for more details.

Hashtable hash = new Hashtable();
private void gridGroupingControl1_TableControlMouseDown(object sender, Syncfusion.Windows.Forms.Grid.Grouping.GridTableControlMouseEventArgs e)
{
Point point = new Point(e.Inner.X,e.Inner.Y);
Element element = e.TableControl.PointToNestedDisplayElement(point);
GridTableCellStyleInfo style = e.TableControl.PointToTableCellStyle(point);
bool isvalue = false;

if(element.Kind == DisplayElementKind.Caption && style.TableCellIdentity.ColIndex == 0)
{
object obj = hash[element.ParentGroup.Category ];
if(obj != null && obj.ToString() != "" )
{
bool b = (bool)style.CellValue;
isvalue = !b;
hash[element.ParentGroup.Category ] = !b;

}
else
{
hash[element.ParentGroup.Category ] = false;
isvalue = false;
}
foreach( Record r in element.ParentGroup.Records )
{
r.SetValue("show",isvalue);
}

}
}

private void gridGroupingControl1_QueryCellStyleInfo(object sender, GridTableCellStyleInfoEventArgs e)
{
GridCurrentCell cc = this.gridGroupingControl1.TableControl.CurrentCell;
if(e.TableCellIdentity.DisplayElement.Kind == DisplayElementKind.Caption && e.TableCellIdentity.ColIndex == 0 && e.TableCellIdentity.RowIndex > 2)
{
object obj =hash[e.TableCellIdentity.DisplayElement.ParentGroup.Category ];
if(obj != null && obj.ToString() != "")
{
bool b = (bool)obj;
e.Style.CellValue = b;
}
}
}

Here is a sample.
http://www.syncfusion.com/Support/user/uploads/CaptionCheckbox_9458c88.zip

Let me know if this helps.
Best Regards,
Haneef

[Kai]

It does indeed work! Many thanks.

>Hi Kai,
>
>To add a checkbox in the grouped rowheader of a grouping grid, you need to change the celltype of the GroupCaptionRowHeaderCell to CheckBox and , handle the TableControlMouseDown event /QueryCellStyleInfo event to achieve the required behaviour. Please find the attachment for more details.
>
>Hashtable hash = new Hashtable();
>private void gridGroupingControl1_TableControlMouseDown(object sender, Syncfusion.Windows.Forms.Grid.Grouping.GridTableControlMouseEventArgs e)
>{
> Point point = new Point(e.Inner.X,e.Inner.Y);
> Element element = e.TableControl.PointToNestedDisplayElement(point);
> GridTableCellStyleInfo style = e.TableControl.PointToTableCellStyle(point);
> bool isvalue = false;
>
> if(element.Kind == DisplayElementKind.Caption && style.TableCellIdentity.ColIndex == 0)
> {
> object obj = hash[element.ParentGroup.Category ];
> if(obj != null && obj.ToString() != "" )
> {
> bool b = (bool)style.CellValue;
> isvalue = !b;
> hash[element.ParentGroup.Category ] = !b;
>
> }
> else
> {
> hash[element.ParentGroup.Category ] = false;
> isvalue = false;
> }
> foreach( Record r in element.ParentGroup.Records )
> {
> r.SetValue("show",isvalue);
> }
>
> }
>}
>
>
>private void gridGroupingControl1_QueryCellStyleInfo(object sender, GridTableCellStyleInfoEventArgs e)
>{
> GridCurrentCell cc = this.gridGroupingControl1.TableControl.CurrentCell;
> if(e.TableCellIdentity.DisplayElement.Kind == DisplayElementKind.Caption && e.TableCellIdentity.ColIndex == 0 && e.TableCellIdentity.RowIndex > 2)
> {
> object obj =hash[e.TableCellIdentity.DisplayElement.ParentGroup.Category ];
> if(obj != null && obj.ToString() != "")
> {
> bool b = (bool)obj;
> e.Style.CellValue = b;
> }
> }
>}
>
>Here is a sample.
>http://www.syncfusion.com/Support/user/uploads/CaptionCheckbox_9458c88.zip
>
>Let me know if this helps.
>Best Regards,
>Haneef