我使用mvc3,並試圖在單個頁面內創建一系列每個都上傳文件的ajax表單。下面是在頁面視圖:使用ajax表單的mvc3文件上傳 - Request.Files爲空
@{
ViewBag.Title = "Index";
}
<h2>
Index</h2>
@Html.Partial("_UploadItem")
@Html.Partial("_UploadItem")
@Html.Partial("_UploadItem")
<script type="text/javascript">
function Go() {
// loop through form tags
for (var n = 0; n < document.forms.length; n++) {
var f = document.forms[n];
// if a dress is chosen, a caption is chosen
// and a file is chosen, then submit the ajax form
if (f.dressid.value != '' &&
f.dresscaption.value != '' &&
f.fileitem.value != '')
f.submit();
}
}
</script>
<input type="button" onclick="Go();"/>
然後轉到()函數通過Ajax的形式循環,檢查看所有3個(dressid,dresscaption和的FileItem)每份表格上是否有非空,和通話提交表單,啓動異步上傳。
這裏的局部視圖:
@using SoRefeising.Models
@using (Ajax.BeginForm("UploadFile", new { }, new AjaxOptions { HttpMethod = "POST" }, new { enctype="multipart/form-data"}))
{
List<SelectListItem> items = (List<SelectListItem>)ViewBag.Dresses;
<span>Dress</span>
@Html.DropDownList("dressid", items, "Choose Dress");
<span>Caption</span>
@Html.TextBox("dresscaption")
<input type="file" id="fileitem" />
}
我已標記的每個形式與多屬性。當生成頁面,我得到如下:
<form action="/upload/UploadFile" data-ajax="true" data-ajax-method="POST" enctype="multipart/form-data" id="form0" method="post"> <span>Dress</span>
<select id="dressid" name="dressid"><option value="">Choose Dress</option>
<option value="1">Simpson01</option>
<option value="2">Simpson02</option>
</select> <span>Caption</span>
<input id="dresscaption" name="dresscaption" type="text" value="" /> <input type="file" id="fileitem" />
</form>
<form action="/upload/UploadFile" data-ajax="true" data-ajax-method="POST" enctype="multipart/form-data" id="form1" method="post"> <span>Dress</span>
<select id="dressid" name="dressid"><option value="">Choose Dress</option>
<option value="1">Simpson01</option>
<option value="2">Simpson02</option>
</select> <span>Caption</span>
<input id="dresscaption" name="dresscaption" type="text" value="" /> <input type="file" id="fileitem" />
</form>
<form action="/upload/UploadFile" data-ajax="true" data-ajax-method="POST" enctype="multipart/form-data" id="form2" method="post"> <span>Dress</span>
<select id="dressid" name="dressid"><option value="">Choose Dress</option>
<option value="1">Simpson01</option>
<option value="2">Simpson02</option>
</select> <span>Caption</span>
<input id="dresscaption" name="dresscaption" type="text" value="" /> <input type="file" id="fileitem" />
</form>
一切正常......
這裏有被稱爲
[HttpPost]
public ActionResult UploadFile(string dressid, string dresscaption)
{
HttpPostedFileBase hpf = Request.Files[0] as HttpPostedFileBase;
...
當動作被稱爲控制器動作,請求.Files集合有0個項目,而不是選定的文件。我已啓用不引人注意的JavaScript,不顯眼的文件加載到母版頁中,並在其他頁面上工作。
我在論壇上發現了一些關於小心文件大小的消息。我正在測試的文件是< 2k
任何想法爲什麼在Request.Files中沒有項目?
謝謝
這是可能的。我做的:)。這裏是鏈接: [http://stackoverflow.com/a/13522052/1067149][1] [1]:HTTP://計算器。com/a/13522052/1067149 – 2012-11-23 01:29:17