使用uploadify自动提交用户的文件，在我的控制器方法Request.Files [名称]不断返回null的Request.Form，但不为空，我可以看到的Request.Form该文件时，我设置一个断点和调试。我缺少的东西吗？我在MVC2测试这一点，但我打算使用它mvc4。
Using uploadify to auto submit a users files, in my controller method Request.Files["Name"] keeps returning null but request.form isn't null, I can see the file in request.form when I set a breakpoint and debug it. Am I missing something? I'm testing this on mvc2 but i plan on using it on mvc4.
<link href="../../Content/uploadify.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="code.jquery/jquery-1.7.2.min.js"></script> <script src="../../Scripts/jquery.uploadify.js" type="text/javascript"></script> <script type="text/javascript"> $(function () { $('#file_upload').uploadify({ 'swf': '/Content/uploadify.swf', 'uploader': '/Home/UploadFile', 'auto': true // Your options here }); }); </script> </head> <body> <%--<% using (Html.BeginForm("UploadFile", "Home", FormMethod.Post, new { enctype = "multipart/form-data" })) { %>--%> <input type="file" name="file_upload" id="file_upload" style="margin-bottom: 0px" /> <%-- <% } %>--%>控制器方法：
[HttpPost] public ActionResult UploadFile(HttpPostedFileBase file) { var theFile = Request.Files["file_upload"]; return Json("Success", JsonRequestBehavior.AllowGet); }如果我添加一个提交按钮，然后提交它，它会的工作，虽然。我需要汽车虽然没有一个提交按钮。
If I add a submit button and then submit it it will work though. I need to be auto though without a submit button.
推荐答案IIRC Uploadify 使用 FILEDATA 作为参数。所以：
IIRC Uploadify uses fileData as parameter. So:
var theFile = Request.Files["fileData"];甚至更好：
[HttpPost] public ActionResult UploadFile(HttpPostedFileBase fileData) { // The fileData parameter should normally contain the uploaded file // so you don't need to be looking for it in Request.Files return Json("Success", JsonRequestBehavior.AllowGet); }当然，如果你不喜欢这个名字，你可以随时使用 fileObjName 设置。
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