jquery uploadify多文件上传，jquery进度条代码，并且可以传递自己的参数进去。
jquery进度条代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="UpLoad.aspx.cs" Inherits="UploadifyDemo_UpLoad" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>jquery uploadify上传带进度条且带参数 _ www.jb200.com</title>
<link href="js/jquery.uploadify-v2.1.4/uploadify.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="js/jquery.uploadify-v2.1.4/jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="js/jquery.uploadify-v2.1.4/swfobject.js"></script>
<script type="text/javascript" src="js/jquery.uploadify-v2.1.4/jquery.uploadify.v2.1.4.min.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$("#uploadify").uploadify({
'uploader': 'js/jquery.uploadify-v2.1.4/uploadify.swf', //uploadify.swf文件的路径
'script': 'UploadHandler.ashx', //处理文件上传的后台脚本的路径
'cancelImg': 'js/jquery.uploadify-v2.1.4/cancel.png',
'folder': 'UploadFile/<% = DateTime.Now.ToString("yyyyMMdd") %>', //上传文件夹的路径按20130416
'queueID': 'fileQueue', //页面中，你想要用来作为文件队列的元素的id
'auto': false, //当文件被添加到队列时，自动上传
'multi': true, //设置为true将允许多文件上传
'fileExt': '*.jpg;*.gif;*.png', //允许上传的文件后缀
'fileDesc': 'Web Image Files (.JPG, .GIF, .PNG)', //在浏览窗口底部的文件类型下拉菜单中显示的文本
'sizeLimit': 102400, //上传文件的大小限制，单位为字节 100k
'onAllComplete': function (event, data) { //当上传队列中的所有文件都完成上传时触发
alert(data.filesUploaded + ' 个文件上传成功!');
}
});
});
function uploadpara() {
//自定义传递参数
$('#uploadify').uploadifySettings('scriptData', { 'name': $('#txtName').val(), 'albums': $('#txtAlbums').val() });
$('#uploadify').uploadifyUpload();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
用户名：<asp:TextBox ID="txtName" runat="server"></asp:TextBox><br/>
相册名：<asp:TextBox ID="txtAlbums" runat="server"></asp:TextBox>
</div>
</form>
<div id="fileQueue"></div>
<input type="file" name="uploadify" id="uploadify" />
<p>
<a href="javascript:void(0);" onclick="uploadpara();">上传</a>|
<a href="javascript:$('#uploadify').uploadifyClearQueue()">取消上传</a>
</p>
</body>
</html>
2、后端程序（实现文件上传，并产生jquery进度条效果的原始数据）：
<%@ WebHandler Language="C#" Class="UploadHandler" %>
using System;
using System.Web;
using System.IO;
/// <summary>
/// UploadHandler文件上传
/// </summary>
public class UploadHandler : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
context.Response.Charset = "utf-8";
HttpPostedFile file = context.Request.Files["Filedata"];
string uploadPath = HttpContext.Current.Server.MapPath(@context.Request["folder"]);
string name = context.Request.Params["name"]; //获取传递的参数
string albums = context.Request.Params["albums"];
if (file != null)
{
if (!Directory.Exists(uploadPath))
{
Directory.CreateDirectory(uploadPath);
}
file.SaveAs(Path.Combine(uploadPath, file.FileName));
context.Response.Write("1");
}
else
{
context.Response.Write("0");
}
}
public bool IsReusable
{
get
{
return false;
}
}
}