下面是asp.net中多个文件夹上传源代码，包括前台和后台
ASPX 代码
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="MultiFileUpload.aspx.cs"
Inherits="MultiFileUpload" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>多文件上传测试</title>
<script type="text/javascript">
function addFile() {
var div = document.createElement("div");
var f = document.createElement("input");
f.setAttribute("type", "file")
f.setAttribute("name", "File")
f.setAttribute("size", "50")
div.appendChild(f)
var d = document.createElement("input");
d.setAttribute("type", "button")
d.setAttribute("onclick", "deteFile(this)");
d.setAttribute("value", "移除")
div.appendChild(d)
document.getElementById("_container").appendChild(div);
}
function deteFile(o) {
while (o.tagName != "DIV") o = o.parentNode;
o.parentNode.removeChild(o);
}
</script>
</head>
<body>
<form ></asp:Label>
</div>
</form>
</body>
</html>
C# 代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class MultiFileUpload : System.Web.UI.Page
{
protected void UploadButton_Click(object sender, EventArgs e)
{
///'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("您输入的用户名是：" + TextBox1.Text + "<br/>");
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();
}
catch (System.Exception Ex)
{
strStatus.Text = Ex.Message;
}
}
}