using swfUpload in asp.net mvc

1.download swfupload.js 

@{
    ViewBag.Title = "AddProduct";
}
<h2>
    AddProduct</h2>
<div>
    <fieldset>
        <legend>Add product</legend>
        <div class="form_item">
            <div class="item_title">
                product name</div>
            <div class="item_input">
                <input type="text" id="name" /></div>
        </div>
        <div class="form_item">
            <div class="item_title">
                product catagory</div>
            <div class="item_input">
                <select>
                    <option value="">please select</option>
                </select>
                &nbsp;<a href="#">click here to add or edit catagory</a></div>
        </div>
        <div class="form_item">
            <div class="item_title">
                product description</div>
            <div class="item_input">
                <textarea id="description" rows="10" cols="100"></textarea></div>
        </div>
        <div class="form_item">
            <div class="item_title">
                product price</div>
            <div class="item_input">
                <input type="text" id="price" /></div>
        </div>

        <div class="form_item">
            <div class="item_title"> product image</div>
            <div>
                <span id="spanButtonPlaceHolder"></span>
                <input id="btnCancel" type="button" value="Cancel All Uploads" onclick="swfu.cancelQueue();" disabled="disabled" style="margin-left: 2px; font-size: 8pt; height: 29px;" />
            </div>
            <div class="fieldset flash" id="fsUploadProgress">
            <span class="legend">Upload Queue</span>
            </div>
           <div id="divStatus">0 Files Uploaded</div>
            
        </div>

        <div class="form_item">
            <div class="item_input">
                <input type="button" value="confirm" />
                &nbsp;&nbsp;<input type="button" value="reset" /></div>
        </div>
    </fieldset>
</div>
<script src="http://www.cnblogs.com/Scripts/swfupload/fileprogress.js" type="text/javascript"></script>
<script src="http://www.cnblogs.com/Scripts/swfupload/handlers.js" type="text/javascript"></script>
<script src="http://www.cnblogs.com/Scripts/swfupload/swfupload.js" type="text/javascript"></script>
<script src="http://www.cnblogs.com/Scripts/swfupload/swfupload.queue.js" type="text/javascript"></script>
<script type="text/javascript">
    var swfu;
    window.onload = function () {
        var settings = {
            flash_url: '@Url.Content("~/Scripts/Swfupload/swfupload.swf")',
            upload_url: '/admin/imageupload',
            post_params: { "PHPSESSID": "" },
            file_size_limit: "100 MB",
            file_types: "*.*",
            file_types_description: "All Files",
            file_upload_limit: 100,
            file_queue_limit: 0,
            custom_settings: {
                progressTarget: "fsUploadProgress",
                cancelButtonId: "btnCancel"
            },
            debug: false,

            // Button settings
            button_image_url: '@Url.Content("~/Scripts/Swfupload/images/XPButtonNoText_160x22.png")', //flash按钮背景，注意自己的路径。
            button_width: "65",
            button_height: "29",
            button_placeholder_id: "spanButtonPlaceHolder",
            button_text: '<span class="theFont">Hello</span>',
            button_text_style: ".theFont { font-size: 16; }",
            button_text_left_padding: 12,
            button_text_top_padding: 3,

            // The event handler functions are defined in handlers.js
            file_queued_handler: fileQueued,
            file_queue_error_handler: fileQueueError,
            file_dialog_complete_handler: fileDialogComplete,
            upload_start_handler: uploadStart,
            upload_progress_handler: uploadProgress,
            upload_error_handler: uploadError,
            upload_success_handler: uploadSuccess,
            upload_complete_handler: uploadComplete,
            queue_complete_handler: queueComplete    // Queue plugin event
        };
        swfu = new SWFUpload(settings);
    };

    </script>

2.in action,implete multi file upload

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.IO;

namespace PlantWeb.Controllers
{
    public class AdminController : Controller
    {
        //
        // GET: /Admin/

        public ActionResult Add()
        {
            return View();
        }

        public ActionResult Edit()
        {
            return View();
        }

        public ActionResult ImageUpload()
        {
            int files = 0;
            string root_path = AppDomain.CurrentDomain.BaseDirectory;
            string upload_path = root_path + @"UploadImage\product";
            string upload_filename = "";
            if (!Directory.Exists(upload_path))
            {
                Directory.CreateDirectory(upload_path);
            }

            foreach (string filename in Request.Files)
            {
                //保存的本地
                var file = Request.Files[filename];
                upload_filename = file.FileName;
                file.SaveAs(upload_path + "\\" + upload_filename);
                files++;
                //保存到数据库
                //byte[] buffer;
                //buffer = new byte[file.InputStream.Length];
                //file.InputStream.Read(buffer, 0, buffer.Length);

            }
            return Content("message from server file count: " + files, "text/plain");
        }
    }
}