多文件上传

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page

<%@ Page language="c#" Codebehind="UpLoad.aspx.cs" AutoEventWireup="false" Inherits="WebApplicationI.Upload" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >

<HTML>

<HEAD>

<title>多文件上传</title>

function addFile()

{

var str = '<INPUT type="file" size="50" NAME="File">'

document.getElementById('MyFile').insertAdjacentHTML("beforeEnd",str)

}

</script>

</HEAD>

<body>

<h3>多文件上传</h3>

<P>

<asp:Button Runat="server" Text="开始上传" ID="UploadButton"></asp:Button>

</P>

<P>

<asp:Label id="strStatus" runat="server" Font-Names="宋体" Font-Bold="True" Font-Size="9pt" Width="500px"

BorderStyle="None" BorderColor="White"></asp:Label>

</P>

</div>

</form>

</body>

</HTML>

Cs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;

namespace WebApplicationI {

/// <summary>

/// /// UpLoad 的摘要说明。

/// /// 实现多文件上传

/// /// </summary>

public class Upload : System.Web.UI.Page

{

protected System.Web.UI.WebControls.Button UploadButton;

protected System.Web.UI.WebControls.Label strStatus;

private void Page_Load(object sender, System.EventArgs e)

{

/// 在此处放置用户代码以初始化页面

if (this.IsPostBack) this.SaveImages();

}

private Boolean SaveImages()

{

///'遍历File表单元素

HttpFileCollection files = HttpContext.Current.Request.Files;

/// '状态信息

System.Text.StringBuilder strMsg = new System.Text.StringBuilder();

strMsg.Append("上传的文件分别是：<hr color=red>");

try { for(int iFile = 0; iFile < files.Count; iFile++)

{ ///'检查文件扩展名字

HttpPostedFile postedFile = files[iFile];

string fileName, fileExtension;

fileName = System.IO.Path.GetFileName(postedFile.FileName);

if (fileName != "")

{

fileExtension = System.IO.Path.GetExtension(fileName);

strMsg.Append("上传的文件类型：" + postedFile.ContentType.ToString() + "<br>");

strMsg.Append("客户端文件地址：" + postedFile.FileName + "<br>");

strMsg.Append("上传文件的文件名：" + fileName + "<br>");

strMsg.Append("上传文件的扩展名：" + fileExtension + "<br><hr>");

///'可根据扩展名字的不同保存到不同的文件夹

//////注意：可能要修改你的文件夹的匿名写入权限。

postedFile.SaveAs(System.Web.HttpContext.Current.Request.MapPath("images/") + fileName);

}

strStatus.Text = strMsg.ToString();

return true;

}

catch(System.Exception Ex)

{

strStatus.Text = Ex.Message;

return false;

}

Web 窗体设计器生成的代码

}