private void show()
{
string fbillno = txt_fbillno_id.Text.Trim();
string start_time = cb_start_time.Text;
string end_time = cb_end_time.Text;
string customer = txt_customer.Text.Trim();
string check_status = ddl_check_status.SelectedValue;
ReceiptAuditAdapter raa = new ReceiptAuditAdapter();
DataSet ds1 = raa.getICSaleList(start_time, end_time, fbillno, customer, check_status);
DataSet ds2 = raa.getICSaleListFromKindDee(start_time, end_time, fbillno, customer, check_status);
DataTable ds = sub(ds2, ds1);
ds.Merge(ds1.Tables[0]);
ds = order(ds);
GridView1.DataSource = ds;
GridView1.DataBind();
}