prolist.aspx.cs

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
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;

public partial class prolist : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        string sql;
        if (!IsPostBack)
        {
            //lb.Items.Add("所有");
            
            sql = "";
            //sql = "select * from alllb order by id desc";
            //getdata2(sql);

            if (Request.QueryString["lb"] == null)
            {

                sql = "select * from allpro where 1=1";
            }
            else
            {
                if (Request.QueryString["lb"].ToString().Trim() == "")
                {
                    sql = "select * from allpro where 1=1";
                }
                else
                {
                    //if (Request.QueryString["lb"].ToString().Trim() == "所有")
                    //{
                    //    sql = "select * from allpro where 1=1";
                    //}
                    //else
                    //{
                    //    sql = "select * from allpro where lb like '%" + Request.QueryString["lb"].ToString().Trim().Substring(0, 2) + "%'";
                    //}
                }
            }
            if (Request.QueryString["pn"] == null)
            {

            }
            else
            {
                if (Request.QueryString["pn"].ToString().Trim() != "")
                {
                    sql = sql + " and mc like '%" + Request.QueryString["pn"].ToString().Trim() + "%'";
                }
            }
            sql = sql + " order by id desc";
            getdata(sql);