Question

这是我的代码：

@using (Html.BeginForm("UploadImages", "Administration", new { _id = Model.Album.AlbumID, enctype = "multipart/form-data" }, FormMethod.Post))
{ 
    <input type="file" name="fileUpload" id="file1" /><br />      
    <input type="file" name="fileUpload" id="file2" /><br />      
    <input type="file" name="fileUpload" id="file3" /><br /> 
    <input name="addPhoto" type="submit" value="Добавить фото" />
}



 [Authorize]
   [HttpPost]
   public ActionResult UploadImages(int _id, IEnumerable<HttpPostedFileBase> fileUpload)
        {
            gb_albumdbEntities1 entityes = new gb_albumdbEntities1();
            foreach (var file in fileUpload)
            {
                if (file == null) continue; // **<---fileUpload items is always null!**
                string path = AppDomain.CurrentDomain.BaseDirectory + "Photos/";
                if (Path.GetFileName(file.FileName) != null)
                {
                    string filename = file.GetHashCode().ToString();
                    string fullpath = Path.Combine(path, filename);
                    file.SaveAs(fullpath);
                    entityes.Photos.AddObject(new Photo() { AlbumID = _id, PhotoUrl = @"http://site.ru/Photos/" + filename });
                }
            }
            entityes.SaveChanges();
            return RedirectToAction("AlbumEdit", new { id = _id });
        }

fileUpload项始终为null。问题出在哪里？Oo

UPD：网址后计算结果： http://localhost:56193/Administration/UploadImages?_id=4&enctype=multipart%2Fform-data

Answer 1

您的列表是否需要编号文件输入才能使模型绑定正常工作。在最简单的形式中，您的视图应如下所示：

<html>
<head>
    <title>Index</title>
</head>
<body>
    <div>
        @using (Html.BeginForm("Index", "Upload", FormMethod.Post, new { enctype = "multipart/form-data" }))
        {            
            for (int i = 0; i < 3; i++)
            {
                @Html.TextBox(string.Format("fileUpload[{0}]", i), null, new { type="file" })<br />
            }
            <input name="submit" type="submit" value="Go" />
        }
    </div>
</body>
</html>

和您的控制人员：

    public class UploadController : Controller
    {
        //
        // GET: /Upload/

        public ActionResult Index()
        {
            return View();
        }

        [HttpPost]
        public ActionResult Index(IEnumerable<HttpPostedFileBase> fileUpload)
        {

            return View();
        }

    }

Answer 2

尝试以下我自己用过的帖子。为我工作。

http://haacked.com/archive/2010/07/16/uploading-files-with-aspnetmvc.aspx

在ASP.NET MVC中，HttpPostedFileBase集合只有空项

2 个答案: