I've read this article about FocusManager. I think it could come handy sometimes when you want to know what element has focus. FocusManager class which can be found in the System.Windows.Input namespace. Below is the sample of how to use it
The FocusManager class has only one static method:
<span class="kwrd">public</span> <span class="kwrd">static</span> Object GetFocusedElement();
Using the FocusManager is easy. Here’s a small example of a possible usage:
var focusedElement = FocusManager.GetFocusedElement() as Control;
if (focusedElement != null)
Output.Text = focusedElement.Name;
One last note: The FocusManager class is also available in the “normal” .NET Framework 3.0 or later.