title: WPF: Notify visualParent when its children changed their size
body: <p>I have FrameworkElement, for example Grid, that has children(Cells, implemented in another control). When main Window changes size, i handle sizeChanged in Grid at first, and after that in some of its children. How can i get notify that all children sizeChanged events finished processing? Of course, i can raise other event in child sizeChanged and increase some counter, but for some reasons it is not the best decision.</p>
  
  <p>Can anyone recommend something? Thanks!</p>