ContainsFocus

Question

Does WPF have a ContainsFocus counterpart?

or is there a better way to determine if an element or its children contain the focus than travelling along the logical tree?

Answer 1

Hi, you can always determine which element has logical focus in your application through the FocusManager.GetFocusedElement method -- pass it the window in question and it will return which element has logical focus in that window.  Remember that logical focus != keyboard focus at all times -- toolbars and menus track their own focus so if you are currently interacting with a menu then the menu has physical focus.  But in general, the following code will tell you which element WPF thinks has focus in the window:

IInputElement focusedElement = FocusManager.GetFocusedElement(thisWindow);

To determine whether this element has keyboard focus, we can check the IsKeyboardFocused property - if it's set to true, then that element currently has the keyboard focus (as well as being the logical focus for that focus scope).

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Oscar Avarez Guerras - Arquitecto Software en I3B (I+D+I) Blog:http://geeks.ms/blogs/oalvarez Por favor marca como respuesta si te ha ayudado esta respuesta

Answer 2

You're probably looking for the IsKeyboardFocusWithin property. That returns true if the element has keyboard focus or one of its children (or childrens' children etc) do.

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Controls for WPF, Windows Forms and Silverlight at http://www.divelements.co.uk

Answer 3

A simple thank you !!!