private void BindCoupons() { System.Data.DataTable dt = TradeHelper.GetChangeCoupons(); if (dt == null || dt.Rows.Count <= 0) { lblNoDataDisplay.Text = " 暂无可选的优惠券"; changeCoupons.Visible = false; return; } this.changeCoupons.DataSource = dt; this.changeCoupons.DataBind(); }
private void BindCoupons() { this.changeCoupons.DataSource = TradeHelper.GetChangeCoupons(); this.changeCoupons.DataBind(); }