Uploadify是JQuery的一個上傳插件，實現(xiàn)的效果非常不錯，帶進度顯示。Uploadify官方網(wǎng)址：http://www.uploadify.com/，在MVC中使用的方法可以參考 jQuery Uploadify在ASP.NET MVC3中的使用 和 Asp.net Mvc中使用uploadify實現(xiàn)圖片縮放保存。
本文是一個簡單的介紹Demo，主要是動態(tài)傳遞參數(shù)方法：通過formdata 向處理程序傳遞額外的表單數(shù)據(jù)：
$(function () {
var taskId = "%= TaskID %>";
var activityId = "%= ActivityId %>";
var userId = "%= GetCurrentLoginUser().ID %>";
$("#%=FileUpload1.ClientID %>").uploadify(
{
'swf': 'uploadify/uploadify.swf',
'uploader': 'UploadHandler.aspx',
'auto': false,
'method': 'post',
'multi': true,
'buttonText': '瀏覽',
'buttonImg': 'uploadify/browse.jpg',
'folder': '../uploadfile',
'fileDesc': '附件',
'onUploadStart': function (event, data) { //this is where you will send the form //data, but remember to get if from post in the .ashx file, by contex.Request["gallaryId"]
$("#%=FileUpload1.ClientID %>").uploadify('settings', 'formData',
{ 'taskId': taskId, 'activityId': activityId, 'userId': userId, 'secInfo': $("#%=ddlsecInfo.ClientID %>").val()} //note hiddenGallaryId would //have the gallaryId which im sending through post , make sure it is rendered in your page( //i.e.not concealed by a multiview control e.t.c)
);
}
});
});
/script>
/head>
body>
form id="form1" runat="server">
asp:FileUpload ID="FileUpload1" runat="server" />
asp:DropDownList ID="ddlsecInfo" runat="server">
asp:ListItem Text="公開" Value="1"> /asp:ListItem>
asp:ListItem Text="普通" Value="2"> /asp:ListItem>
asp:ListItem Text="機密" Value="3"> /asp:ListItem>
/asp:DropDownList>
a href="javascript: $('#%=FileUpload1.ClientID %>').uploadify('upload','*')">上傳/a>
a href="javascript:$('#%=FileUpload1.ClientID %>').uploadify('cancel','*')">取消上傳/a>
/form>
/body>
/html>
