public DataTable LoadInvoiceDetailTableForAllDataByInvoiceDateCustomerGroupId(Int32 CustomerGroupId, DateTime dateTime_From, DateTime dateTime_To, Int32 Category_Id) { DALInvoice obj_DALInvoice = new DALInvoice(); DataTable dt_Invoice = obj_DALInvoice.LoadInvoiceDetailTableForAllDataByInvoiceDateCustomerGroupId(CustomerGroupId, dateTime_From, dateTime_To, Category_Id); obj_DALInvoice = null; return(dt_Invoice); }