Draw a "focusVisual" (Rectangle) only when control receives focus via keyboard, not when 'via mouse'

Nishant Rana

16y16.8k

The problem is that I have a control which has some embedded elements within, i.e. textbox, textblock etc. For this control i I want to implement my custom "FocusVisualStyle" that just encapsulate "TextBox" not entire control. To do that i've placed triggers on "IsKeyboardFocused" property to shape my "FocusVisual" (Rectangle) just around textbox.

Everything goes well except one :-( I want FocusVisual to appear only when we got a focus via keyboard (that is what "IsKeyboardFocused" suppose to do and thats how a FocusVisual should work) but I can see the FocusVisual appear even by mouse clicking on my TextBox.

There are few workarounds, like one : handle "GotKeyboardFocus" but i guess its not really a smart approach.

Is anyone has any idea why "IsKeyboardFocused" absorbing "IsMouseCaptured" event ?

Thanks and Regards

2 Replies

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Nishant Rana16y ago
Hi Sivaraman thanks for ur rply !
Well i got what you meant but one thing is confusing as per MSDN hte ISKeyBoardFocused is specifically used to distinguish between focus received via keyboard input or anyother external input (i.e mouse click , touch etc).

However in my case I am not giving any keyboard input to set the visual style
I found similar problem reported at this link hope it help you better understand my requirement.
And if that is the case as you said, We can never achieve the functionality what I am looking for? Do you have any suggestion for that..?

Plz feel free to get more inputs from me regarding in detail of this issue.
Anyway Happy Diwali and long weekend !!! :-)

Thanks and Regards
Nishant
Sivaraman Dhamodaran16y ago
KeyBoardFocus means where all your key strokes goes and got handled. You clicked the Textbox it got the keyborad focus. Whatever you type goes to the so called mouse clicked textbox.
So, definitely, IsKeyBoardFocused is called to test the control it will return true. No matter whether it got the focus by mouse or tab or keyborad short cut to receive key strokes.
Hope this helps.