订单处理/delete.aspx.cs

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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

namespace 网上订餐系统.订单处理
{
    public partial class delete : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

            if (string.IsNullOrEmpty(Request.QueryString["订单ID"]))
            {
                Response.Write(ScriptHelper.AlertAndBack("参数不存在"));
                return;
            }
            int id;
            id = RequestHelper.GetIntValue("订单ID");
            if (id < 1)
            {
                Response.Write(ScriptHelper.AlertAndBack("参数非法"));
                return;
            }


            SqlServer db = new SqlServer(); //打开数据库
            SqlServer my = new SqlServer();
       
            db.SQL = "delete from 订单条目 where 订单ID=@订单ID";
            my.SQL = "delete from 订单表 where 订单ID=@订单ID"; //设置SQL语句
           
          
            my.AddSqlParameter("@订单ID", id);
            db.AddSqlParameter("@订单ID", id);
            int row = db.ExcuteNonQuery();  //执行SQL语句
            my.ExcuteNonQuery();

            if (row == 1)
            {
                string urlParameter = RequestHelper.GetParametersString("订单ID");

                Response.Write(ScriptHelper.AlertAndGo("删除成功", "OrderListShow.aspx?" + urlParameter));
            }
            else
            {
                Response.Write(ScriptHelper.AlertAndBack("删除失败"));
            }
        }
    }
}