CODEWITHSUNDEEP
c#wpfxamlmvvmfocus
Shumii
Shumii

Reputation: 4581

How to lose keyboard scope anywhere in the application?

I have a delegate command which when invoked I want to lose focus on any control which has focus. I am using MVVM therefore the code in the delegate command's execute has no reference to the UIElements. I am happy to move focus or use any kind of trick to this - but it needs to be somewhat agnostic to which control has focus.

Don't mind if the solution is in XAML or C#.

Upvotes: 0

Views: 28

Answers (1)

Sheridan
Sheridan

Reputation: 69979

Perhaps you should be using the TraversalRequest class to move the focus to the next control? From the linked page, it:

Represents a request to move focus to another control.

All you need to get this to work is the currently focused element. Again, from the linked page on MSDN:

// Creating a FocusNavigationDirection object and setting it to a 
// local field that contains the direction selected.
FocusNavigationDirection focusDirection = _focusMoveValue;

// MoveFocus takes a TraveralReqest as its argument.
TraversalRequest request = new TraversalRequest(focusDirection);

// Gets the element with keyboard focus.
UIElement elementWithFocus = Keyboard.FocusedElement as UIElement;

// Change keyboard focus. 
if (elementWithFocus != null)
{
    elementWithFocus.MoveFocus(request);
}

Upvotes: 1

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