public JsonResult GetSubCategory(string id) { List<SelectListItem> subCategory = new List<SelectListItem>(); ProductAdminBLL bll = new ProductAdminBLL(); Dictionary<string, string> list = bll.GetSUBCategoryBasedOnID(id); foreach (var item in list) { subCategory.Add(new SelectListItem { Text = item.Value, Value = item.Key }); } return Json(new SelectList(subCategory, "Value", "Text")); }