private void btnReplace_Click(object sender, System.EventArgs e) { if (!TradeHelper.CanReplace(this.hdorderId.Value)) { this.ShowMessage("已有待确认的申请!", false); return; } if (TradeHelper.ApplyForReplace(this.hdorderId.Value, this.txtReplaceRemark.Text)) { this.BindOrders(); this.ShowMessage("成功的申请了换货", true); return; } this.ShowMessage("申请换货失败", false); }