<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %> attachme
后台代码：
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Xml;
///
/// attachme allows for multiple files to be uploaded to your web server while using only
/// one HttpInputFile control and a listbox.
///
public partial class Default2 : System.Web.UI.Page
{
//protected System.Web.UI.WebControls.ListBox ListBox1;
// protected System.Web.UI.WebControls.Button AddFile;
// protected System.Web.UI.WebControls.Button RemvFile;
// protected System.Web.UI.HtmlControls.HtmlInputFile FindFile;
// protected System.Web.UI.HtmlControls.HtmlInputButton Upload;
//protected System.Web.UI.WebControls.Label Label1;
public ArrayList files = new ArrayList();
static public ArrayList hif = new ArrayList();
public int filesUploaded = 0;
private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent()
{
this.AddFile.Click += new System.EventHandler(this.AddFile_Click);
this.RemvFile.Click += new System.EventHandler(this.RemvFile_Click);
this.Upload.ServerClick += new System.EventHandler(this.Upload_ServerClick);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
///
/// AddFile will add the path of the client side file that is currently in the PostedFile
/// property of the HttpInputFile control to the listbox.
///
///
///
private void AddFile_Click(object sender, System.EventArgs e)
{
if (Page.IsPostBack == true)
{
hif.Add(FindFile);
ListBox1.Items.Add(FindFile.PostedFile.FileName);
}
else
{
}
}
///
/// RemvFile will remove the currently selected file from the listbox.
///
///
///
private void RemvFile_Click(object sender, System.EventArgs e)
{
if(ListBox1.Items.Count != 0)
{
hif.RemoveAt(ListBox1.SelectedIndex);
ListBox1.Items.Remove(ListBox1.SelectedItem.Text);
}
}
///
/// Upload_ServerClick is the server side script that will upload the files to the web server
/// by looping through the files in the listbox.
///
///
///
public void Upload_ServerClick(object sender, System.EventArgs e)
{
string baseLocation = "D://";
string status = "";
if((ListBox1.Items.Count == 0) && (filesUploaded == 0))
{
Label1.Text = "Error - a file name must be specified.";
return;
}
else
{
foreach(System.Web.UI.HtmlControls.HtmlInputFile HIF in hif)
{
try
{
string fn = System.IO.Path.GetFileName(HIF.PostedFile.FileName);
HIF.PostedFile.SaveAs(baseLocation + fn);
filesUploaded++;
status += fn + "
";
}
catch(Exception err)
{
Label1.Text = "Error saving file " + baseLocation + "
" + err.ToString();
}
}
if(filesUploaded == hif.Count)
{
Label1.Text = "These " + filesUploaded + " file(s) were uploaded:
" + status;
}
hif.Clear();
ListBox1.Items.Clear();
}
}
}
