ListByScid.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.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml.Linq;

namespace 网上订餐系统.菜单
{
    public partial class List : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            int pageSize=5 ;
            int page;
            int scid ;
            int.TryParse(Request.QueryString["p"], out page);
            int.TryParse(Request.QueryString["Scid"], out scid);
        
            if (page <= 0)
            {
                page = 1;
            }

            SqlServer db = new SqlServer();

            string condition = " 1=1 ";
            if (scid > 0)
            {
                condition += " and Scid=@Scid";
                db.AddSqlParameter("@Scid", scid);


                db.SQL = "select 种类 from 菜分类表 where Scid=@Scid";
                this.Literal系列名称.Text = (string)db.ExcuteScalar();
            }

            else
            {
                this.Literal系列名称.Text = "浏览菜单";
            }

            if (!string.IsNullOrEmpty(Request.QueryString["key"]))
            {
                condition += " and 菜名 like '%'+@key+'%'";
                db.AddSqlParameter("@key", Request.QueryString["key"]);

                this.Literal系列名称.Text += " > " + Request.QueryString["key"];
            }
         
            int recordCount;
            DataTable dt = db.GetPagingInfo("菜单表", "*", condition,"cID desc"  , page, pageSize, out recordCount);
            this.DataList菜色. DataSource = dt;   //告诉rptList控件,它要显示的数据来从哪儿
            DataList菜色.DataBind();