NavigationPaneButton - IsMouseOver Changes

May 10, 2013 at 9:35 PM
Just curious as to why the NavigationPaneButton is setup to start listening for changes to its IsMouseOverProperty in the BeginInit() method as opposed to the constructor?
    public override void BeginInit()
      DependencyPropertyDescriptor dpd = DependencyPropertyDescriptor.FromProperty(IsMouseOverProperty, typeof(ButtonBase));
      dpd.AddValueChanged(this, IsMouseOverChanged);
An issue arises when a NavigationPaneButton is instantiated through code, and not through Xaml. When instantiaed in code, the BeginInit method is not called automatically, and therefore the mouseover / displaystate never gets updated properly.

Just wondering if there was any reasoning to putting the AddValueChanged code in the BeginInit method as opposed to the constructor?
I've moved the