public void CheckIfCartEmpty()
 {
     if (ShoppingCartList.Any())
     {
         CartVisibility = Visibility.Visible;
     }
     else
     {
         CartVisibility = Visibility.Collapsed;
     }
 }
 /// <summary>
 /// Checks if the order can be added
 /// </summary>
 /// <returns>true if possible</returns>
 public bool CanOrderExecute()
 {
     if (LoggedUser.CurrentUser.UserAddress == null)
     {
         return(false);
     }
     if (!ShoppingCartList.Any())
     {
         return(false);
     }
     else
     {
         return(true);
     }
 }