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Ticket Q364842
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Expand/collapse Group when click on group header

created 13 years ago

When I have a grid that groups items is there a way to expand/collapse the group when the user clicks on the text in the header? Right now the only way to expand/collapse a group is to click on the expand button in the header.

Comments (1)
DevExpress Support Team 13 years ago

    Hi Frank,
    Thank you for contacting us.
    To accomplish your task handle the MouseLeftButtonUp event in the following manner:

    C#
    private void tableView1_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)  
        {  
            TableView view = sender as TableView;  
            TableViewHitInfo hi = view.CalcHitInfo(e.OriginalSource as DependencyObject);  
            if (hi.HitTest == TableViewHitTest.GroupValue)  
                ToggleExpandedState(view);  
        }  
        private void ToggleExpandedState(TableView view)  
        {  
            if (view.Grid.IsGroupRowExpanded(view.FocusedRowHandle))  
                view.CollapseFocusedRow();  
            else  
                view.ExpandFocusedRow();  
        }

    If you need any further assistance with this subject, please feel free to reactivate this ticket.
    Thanks
    Dimitros

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