public IEnumerable<tblCustomer> GetCustomerScroll(int pageNumber, int pageSize)
 {
     try
     {
         int IsPaging = 1;
         CrudDataService objCrd = new CrudDataService();
         List<tblCustomer> modelCust = objCrd.GetCustomerList(pageNumber, pageSize, IsPaging);
         return modelCust;
     }
     catch (Exception ex)
     {
         throw ex;
     }
 }
 public IEnumerable<tblCustomer> GetCustomers(int pageSize)
 {
     try
     {
         int pageNumber = 0;
         int IsPaging = 0;
         CrudDataService objCrd = new CrudDataService();
         List<tblCustomer> modelCust = objCrd.GetCustomerList(pageNumber, pageSize, IsPaging);
         return modelCust;
     }
     catch
     {
         throw;
     }
 }