qtlist.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 qtlist : System.Web.UI.Page
{
    public string lb, lbtxt,sql;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            lb = Request.QueryString["lb"].ToString().Trim();
            switch (lb)
            {
                case "1":
                    lbtxt = "行业资讯";
                    break;
                case "2":
                    lbtxt = "市场热点";
                    break;
                case "3":
                    lbtxt = "行业动态";
                    break;
            }
            sql = "select id,title,addtime from allgonggao where leibie='"+lbtxt+"' order by id desc";
            getdata(sql);
        }
    }
    private void getdata(string sql)
    {
        DataSet result = new DataSet();
        result = new Class1().hsggetdata(sql);
        if (result != null)
        {
            if (result.Tables[0].Rows.Count > 0)
            {
                DataGrid1.DataSource = result.Tables[0];
                DataGrid1.DataBind();
            }
            else
            {
                DataGrid1.DataSource = null;
                DataGrid1.DataBind();
            }
        }
    }
}