ZiLiaoDetial.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 NewsDetial : System.Web.UI.Page
{
    public static string lurl;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            GetNewsInfo();
        }
    }
    private void GetNewsInfo()
    {
        string ID = Request.QueryString["ID"].ToString();
        string sqlNews = "select  * from TB_ZiLiao where ID=" + ID;
        DataSet result = new DataSet();
        result = DBHelper.GetDataSet(sqlNews);
        if (result != null)
        {
            if (result.Tables[0].Rows.Count > 0)
            {
                lurl = result.Tables[0].Rows[0]["WenJian"].ToString().Trim();
                this.dlTopic.DataSource = result.Tables[0];
                dlTopic.DataBind();

            }
            else
            {
                dlTopic.DataSource = null;
                dlTopic.DataBind();
            }
        }
    }




    protected void Button1_Click(object sender, EventArgs e)
    {
        try
        {
            Response.ContentType = "application/x-zip-compressed";
            Response.AddHeader("Content-Disposition", "attachment;filename=" + lurl);
            string filename = Server.MapPath(lurl);
            Response.TransmitFile(filename);
        }
        catch
        {

            Response.Write("<script>alert('该文件不存在');history.go(-1);</script>");