WPF MouseDown event not firing everywhere in a control

Question

I am currently fighting against another WPF struggle, namely mouse events.

I basically have a very simple control (a Border containing a Grid

Answer 1

<StackPanel Background="Transparent" ... >

or

<Border Background="Transparent" ... >

should do the trick...

This makes the grid transparent, however visible for mouse-clicks.

Look here form more Information.

There are some other circumstances, where you have to use the PreviewXXX- event, this is when a child element "swallows" the event away, but in your case, the above should be what you're looking for.