Question

页码

<% using (Html.BeginForm())
   { %>
<fieldset>
    <legend>上传项目材料</legend>
    <input  type="file" name="File1" />
    <input  type="submit" value="上传" />
</fieldset>
<%} %>

动作代码

[HttpPost]
public ActionResult FileUpLoad(int id, FormCollection form)
{
    try
    {
        var model = db.ProjcetDeclare.First(c => c.id == id);

        if (Request.Files.Count==0)
        {
            return View();
        }
        string newFile=string.Empty;

        var File1 = Request.Files[0];
        if (File1.ContentLength == 0)
        {
        }
        newFile = model.Project.pname + DateTime.Now.ToString("yyyyMMddHHmmss") + Path.GetFileName(File1.FileName);
        File1.SaveAs(Server.MapPath("/项目材料/" + newFile));

        model.XMCL = "/项目材料/" + newFile;
        UpdateModel(model);
        db.SaveChanges();
        return RedirectToAction("Index");
    }
    catch
    {
        return View();
    }
}

我正在努力但Request.Files.Count == 0为真找不到文件为什么呢？

Answer 1

本周早些时候遇到了这个问题。您的表单标记缺少HTML属性（enctype）来告诉服务器它正在发布文件。这是解决方案......

using (Html.BeginForm("Index", "Home", FormMethod.Post, new {enctype = "multipart/form-data"}))

ASP.NET MVC3 fileupload无法正常工作

1 个答案: