public ActionResult CreateCustomer([Bind(Include = "CustomerId, CustomerName,Phone,Address")] Customer customer) { try { if (customer.CustomerName == "ABC") { ModelState.AddModelError("CustomerName", "Customer Name can not be ABC"); } if (ModelState.IsValid) { CustomerBIZ custBiz = new CustomerBIZ(); custBiz.AddNewCustomer(customer); return(Json(new { success = true })); } } catch (Exception ex) { Response.Write(ex.Message); } return(PartialView(customer)); }