Control in userControl problem

Jul 6, 2015 at 4:04 PM
Edited Jul 7, 2015 at 9:37 PM
Hello.
Control is great, but I can't figure why when I place control in UserControl, Icon gone (it's visible in Designer, but not when I start application), when control is placed directly on window everything is ok...
I'm sure that problem is with ContentPresenter,, but I don't know how to fix it...
Can someone help me?