title: C# WPF SizeChanged event doesn't update width and height when maximized
body: <p>I was trying to update my controls when the size of the form changed using <code>SizeChanged</code>. </p>
  
  <p>It worked perfectly, except when going full screen.</p>
  
  <p>I searched the grid events but couldn't find any events that occur when the user maximizes the window (goes full screen).</p>