hierarchical radgridview focus

[Jeejee Unwalla]

I have a heirarchical radgridview.  Lets say the parent is locations and the child is contacts at that location.  I can't seem to figure out which grid has the focus. 

I'm binding a viewmodel to a set of command buttons to edit or delete the currently selected item in the grid.  When the item is a location I want to bind to the location viewmodel but when the focus is on a contact I want the same buttons to be bound to the contact viewmodel instead.  I tried using the row_activated event but that seems to fire only when you double click.  I thought about the SelectionChanged event but it seems that when I switch from the child grid to the parent grid the selectionchanged event is not firing.  Could you provide an example of how I could achieve somthing like this?

[Yavor Georgiev]

Hi Jeejee Unwalla,

 You can try the GotFocus event. If that doesn't work for you, I'll try and make a sample project.

Regards,
Yavor Georgiev
the Telerik team

[Jeejee Unwalla]

Will the GotFocus fire as you move between the rows within the parent.  I suppose I could combine the GotFocus event with the SelectionChanged event.

[Yavor Georgiev]

Hello Jeejee Unwalla,

 If you handle GotFocus for your parent RadGridView, the event will fire each time one of the elements contained in the parent (including its children) is focused. Check out this code:

void GridView_GotFocus(object sender, RoutedEventArgs e)
{
    GridViewDataControl grid;
    if (e.OriginalSource is GridViewDataControl)
    {
        grid = e.OriginalSource as GridViewDataControl;
    }
    else
    {
        grid = (e.OriginalSource as UIElement).ParentOfType<GridViewDataControl>();
    }
    System.Diagnostics.Debug.WriteLine(grid.ItemsSource.ToString());
}

This will always try to find the GridView that is closest to the focused element. So if you click a cell in the parent, the event will fire and 'grid' will be the parent. If you click a cell in the hierarchy child, the event will fire and 'grid' will be the child.

Regards,
Yavor Georgiev
the Telerik team