wpf - Context menu disappears when opened with Key.App -


i have small problem context menu in c#/wpf. open within canvas, being attached rectangle. have defined open space key, , works fine. want change app-key (aka menu-key, application-key, contxt-key, etc.). when press app-key, context menu appears, far release key, disappears. test case, tried key 'a', , works fine. know why disappears after releasing button? has key special behaviour?

here code:

private void rect_keydown(object sender, keyeventargs e) {   if (e.key == key.space || e.key == key.a || e.key == key.apps) {       e.handled = true;          componentwithfocus.mainrectangle.contextmenu.isopen = true;   } }

for have same problem, here solution: app-key should not handled in keydown event, has handled in keyup event.

br, ossi


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