public void Detach()
{
_drawerObser = null;
if (_sc == null)
{
return;
}
_sc.DirectManipulationStarted -= _sc_DirectManipulationStarted;
_sc.ViewChanged -= _sc_ViewChanged;;
_sc = null;
}
public void Attach(DependencyObject associatedObject)
{
_sc = associatedObject as ScrollViewer;
if (_sc == null)
{
return;
}
_drawerObser = new DrawerCloserObserver(_sc, null);
_sc.DirectManipulationStarted -= _sc_DirectManipulationStarted;
_sc.DirectManipulationStarted += _sc_DirectManipulationStarted;
_sc.ViewChanged -= _sc_ViewChanged;;
_sc.ViewChanged += _sc_ViewChanged;
}