public static bool Update(CustomerState entity)
 {
     throw new Exception("chua lam!...");
 }
 public static bool AddNew(CustomerState entiry)
 {
     throw new Exception("chua lam!...");
 }
 partial void UpdateCustomerState(CustomerState instance);
 partial void DeleteCustomerState(CustomerState instance);
 partial void InsertCustomerState(CustomerState instance);