public JsonResult DeleteSupplier(int Id) { bool result = false; var charts = data.SearchDevice(null, null, null, null, null).Where(x => x.SupplierId == Id).ToList(); if (charts.Count == 0) { data.DeleteSupplier(Id); result = true; } else { result = false; } return(Json(result, JsonRequestBehavior.AllowGet)); }