public void ShowSelectedWorkshop(Booking booking)
		{
			booking.HelpsData = Model.HelpsData;

			if (booking.ReleatedWorkshop == null) {

				AddNewReleatedWorkshop (booking);
			}
				
			View.Navigation.PushAsync(new WorkshopController(booking.ReleatedWorkshop).View);
		}
		public void AddNewReleatedWorkshop(Booking booking)
		{
			booking.ReleatedWorkshop = booking.ToWorkShop ();
		}