public void DeleteShippingByShippingMethodID(string shippingMethodIds, int storeId, int portalId, string userName)
 {
     try
     {
         ShippingMethodSqlProvider obj = new ShippingMethodSqlProvider();
         obj.DeleteShippings(shippingMethodIds, storeId, portalId, userName);
     }
     catch (Exception ex)
     {
         throw ex;
     }
 }