Allow grouping but not column reordering

[Grant Crofton]

Hi, I'd like to prevent users from re-ordering the columns (by dragging the headers around), but allow grouping by dragging column headers into the grouping row.

I tried setting:

requestGrid.TableDescriptor.TableOptions.AllowDragColumns = False

but that prevents both. Is there something I can set to prevent only column ordering, or some event to cancel?

I'm using GridGroupingControl v4.402.0.51

Thanks,
Grant

[Nirmal Raja]

Hi Grant,

Thank you for your interest in Syncfusion products.

You can use the following event and the code hooked to the event to disable the column on reordering the position, but allow to group through drag and drop.

gridGroupingControl1.TableControl.QueryAllowDragColumn += new Syncfusion.Windows.Forms.Grid.Grouping.GridQueryAllowDragColumnEventHandler(TableControl_QueryAllowDragColumn);
void TableControl_QueryAllowDragColumn(object sender, Syncfusion.Windows.Forms.Grid.Grouping.GridQueryAllowDragColumnEventArgs e)
{
if (e.Reason == Syncfusion.Windows.Forms.Grid.Grouping.GridQueryAllowDragColumnReason.MouseUp)
e.AllowDrag = false;
}

Let me know if you have any concern.

Regards,
Nirmal

[Grant Crofton]

That works, thanks. It isn't ideal as it still looks like the user can reorder the columns by dragging, but it gets around our main problem.

[Mahendran]

Hi Grant,

Thanks for your update.

To prevent the user can redorder the column by dragging you need to handle the QueryAllowDragColumn Event handler. We have modified the already given code. Please refer the following code.

 void TableControl_QueryAllowDragColumn(object sender, Syncfusion.Windows.Forms.Grid.Grouping.GridQueryAllowDragColumnEventArgs e)
        {
            if (e.Reason == Syncfusion.Windows.Forms.Grid.Grouping.GridQueryAllowDragColumnReason.MouseUp || e.Reason==Syncfusion.Windows.Forms.Grid.Grouping.GridQueryAllowDragColumnReason.ShowRedArrowIndicator )
                e.AllowDrag = false;
        }

Please let me know if you have any concerns.

Regards
R.Mahendran.

[Grant Crofton]

Excellent, that's even better. Thanks a lot.

Grant

[Mahendran]

Hi Grant,

Thanks for using Syncfusion products.

Please let me know if you have any concerns.

Regards
R.Mahendran