/// <summary> /// add or edit /// </summary> /// <param name=""></param> /// <param name=""></param> /// <returns></returns> public ActionResult Input(string id = "") { if (string.IsNullOrEmpty(id)) { ViewBag.Title = "add new Category"; Category newCategory = new Category(); newCategory.CategoryID = 0; return(View(newCategory)); } else { ViewBag.Title = "edit Category"; Category editCategory = CatalogBLL.Categories_Get(Convert.ToInt32(id)); return(View(editCategory)); } }