显示指定文件夹中的所有文件并提供下载[WEB学习实例]
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.IO;
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;
public partial class BanZhu_BianLi_WenJian : System.Web.UI.Page
{
string WeiZhi = @"D:/资源/报告/";//虚拟目录：Files
string WeiZhi1 = @"D:/公文/";//虚拟目录：Files1
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
DataTable dt = new DataTable();
dt.Columns.Add(new DataColumn("Name", typeof(string)));
string serverpath = Server.MapPath("~/");
DirectoryInfo dir = new DirectoryInfo(WeiZhi1);
foreach (FileInfo fileName in dir.GetFiles())
{
DataRow dr = dt.NewRow();
dr[0] = fileName;
dt.Rows.Add(dr);
}
ListBox1.DataSource = dt;
ListBox1.DataTextField = "Name";
ListBox1.DataValueField = "Name";
ListBox1.DataBind();
}
}
protected void Button1_Click(object sender, EventArgs e)
{
if (Directory.Exists(WeiZhi) == false)
{
System.Web.UI.ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "tixin", "alert('该文件不存在或路径错误！')", true);
}
else
{
DirectoryInfo di = new DirectoryInfo(WeiZhi);
FileSystemInfo[] dis = di.GetFileSystemInfos();//.ToString() + Convert.ToString(di.CreationTime);
if (dis.Length < 1)
{
System.Web.UI.ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "tixin", "alert('该文件夹是空文件夹！')", true);
}
else
{
ListBox1.DataSource = dis;
ListBox1.DataBind();
//System.Web.UI.ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "tixin", "alert('检索成功，列表为该路径的文件和目录！')", true);
}
}
}
protected void ListBox1_SelectedIndexChanged(object sender, EventArgs e)
{
Session["wenjian"] = ListBox1.SelectedValue.ToString();
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
if (Session["wenjian"].ToString() != "" && Session["wenjian"] != null)
{
string path = Server.MapPath("~/Files1/") + Session["wenjian"].ToString();//
FileInfo fi = new FileInfo(path);
if (fi.Exists)
{
Response.Clear();
Response.AddHeader("Content-Disposition", "attachment;filename=" + Server.UrlEncode(fi.Name));//
Response.AddHeader("Content-Length", fi.Length.ToString());
Response.ContentType = "appilcation/octet-stream;charset=gb2312";
Response.Filter.Close();
Response.WriteFile(fi.FullName);
Response.End();
}
}
}
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<%@ Page Language="C#" MasterPageFile="~/MasterPage2.master" AutoEventWireup="true" CodeFile="BianLi_WenJian.aspx.cs" Inherits="BanZhu_BianLi_WenJian" Title="资料检索" %>
资料检索
}