Request.Files始终为0

Question

 <body> <form id="form1" runat="server" enctype="multipart/form-data"> <table id="tblAttachment"> </table> <input id="btnSubmit" type="button" value="button" /> </form> </body>

动态插入FileUpload控件

 <script> $(document).ready(function () { var MaxAttachment = 1; $("#tblAttachment").append('<tr><td><input id=\\"Attachment_' + MaxAttachment.toString() + '\\" name=\\"file\\" type=\\"file\\" /><br><a class=\\"MoreAttachment\\">Additional Attachment</a></td></tr>'); $("#btnSubmit").on("click", UploadFile); }); </script>

使用jQuery将数据发送到.ashx

  function UploadFile() { var kdata = new FormData(); var i = 0; //run through each row $('#tblAttachment tr').each(function (i, row) { var row = $(row); var File = row.find('input[name*="file"]'); alert(File.val()); kdata.append('file-' + i.toString(), File); i = i + 1; }); sendFile("fUpload.ashx", kdata, function (datad) { }, function () { alert("Error in Uploading File"); }, true); }

在.ashx上，计数始终为零？

 public class fUpload : IHttpHandler { public void ProcessRequest(HttpContext context) { int k = context.Request.Files.Count; context.Response.Write(UploadMultipleFiles()); }

Ajax请求

 function sendFile(requestUrl, dataPayload, successfunc, errorfunc, synchronousMode) { $.ajax({ url: requestUrl, type: "POST", dataType: "json", contentType: false, processData: false, cache: false, async: synchronousMode, data: dataPayload, success: successfunc, error: errorfunc }); }

请检查..我在哪里做错了

具有enctype =“ multipart / form-data”的表单标签和每个fileUPload控件也具有唯一的id和name属性

谢谢

Answer 1

您要发送的是jQuery对象，而不是文件？

简而言之，您基本上是在这样做

var kdata = new FormData();

var File = row.find('input[name*="file"]'); // jQuery object

kdata.append('file-0', File);

您需要文件，而不是jQuery对象

var kdata = new FormData();

var File  = row.find('input[name*="file"]'); // jQuery object

var files = File.get(0).files[0]; // it not multiple

kdata.append('file-0', Files);

Request.Files始终为0

问题描述

1 个解决方案

解决方案1
1 已采纳 2014-09-19 16:39:40

Request.Files始终为0

问题描述

1 个解决方案

解决方案1 1 已采纳 2014-09-19 16:39:40

解决方案1
1 已采纳 2014-09-19 16:39:40