Silverlight: Event Handler Issue

Question

So I have a Grid on a page that has a few UserControls on it. Each UserControl has a MouseLeftButtonDown event registered, as does the Grid. Before i added the event to the grid, the events on the user controls worked fine. But now that i have the event on the Grid, only the grid event fires regardless of where i click. None of the UseControls are capturing the event.

What do i need to do to allow the MouseLeftButtonDown events on the UserControls to fire while still having the MouseLeftButtonDown event on the Grid?

Answer 1

What you describe is very unusual.

What would often happen in this case it that both events fire. Since MouseLeftButtonDown is a bubbling event when you click on a UserControl it fires its MouseLeftButtonDown, if the handler attached to it doesn't set the Handled property of the MouseButtonEventArgs parameter to True then the event will bubble up to the parent and so on. If the parent controls also have code attached to their MouseLeftButtonDown events that code will also run.

Are sure that in fact the UserControl events don't fire or is that you happen to observe that the Grid event was always firing. If you are absolutely certain that attaching a event handler to the Grid actually prevents the UserControl events from firing can you edit your question with a small Repro, its very hard to see how this could be the case.