public IActionResult OnPostAsync() { DisplayCategory = _dbContext.Categories.ToList(); if (!ModelState.IsValid) { return(Page()); } if (FoodItem.Id > 0) { restaurantData.UpdateFoodItem(FoodItem); } else { restaurantData.AddFoodItem(FoodItem); } restaurantData.Commit(); return(RedirectToPage("./FoodItems", new { foodItemId = FoodItem.Id })); }