void INavigationItemSuscriber.SuscribeNavigationEvents(INavigationItemEvents navigationItemEvents)
 {
     if (navigationItemEvents != null)
     {
         navigationItemEvents.RefreshRequired += new EventHandler <RefreshRequiredEventArgs>(HandleRefreshRequired);
     }
 }
 void INavigationItemSuscriber.SuscribeNavigationEvents(INavigationItemEvents navigationItemEvents)
 {
     if (navigationItemEvents != null)
     {
         navigationItemEvents.RefreshRequired += new EventHandler<RefreshRequiredEventArgs>(HandleRefreshRequired);
     }
 }