Cara menulis "Html.BeginForm" di Razor

Jika saya menulis seperti ini:

form action = "Images" method = "post" enctype = "multipart / form-data"

berhasil.

Tapi di Razor dengan '@' itu tidak berhasil. Apakah saya melakukan kesalahan?

@using (Html.BeginForm("Upload", "Upload", FormMethod.Post, 
                             new { enctype = "multipart/form-data" }))
{
    @Html.ValidationSummary(true)

    <fieldset>

        Select a file <input type="file" name="file" />
        <input type="submit" value="Upload" />

    </fieldset>
}

Kontroler saya terlihat seperti ini:

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Upload() 
{
    foreach (string file in Request.Files)
    {
        var uploadedFile = Request.Files[file];
        uploadedFile.SaveAs(Server.MapPath("~/content/pics") + 
                                      Path.GetFileName(uploadedFile.FileName));
    }

    return RedirectToAction ("Upload");
}

Kode berikut berfungsi dengan baik:

@using (Html.BeginForm("Upload", "Upload", FormMethod.Post, 
                                      new { enctype = "multipart/form-data" }))
{
    @Html.ValidationSummary(true)
    <fieldset>
        Select a file <input type="file" name="file" />
        <input type="submit" value="Upload" />
    </fieldset>
}

dan menghasilkan seperti yang diharapkan:

<form action="/Upload/Upload" enctype="multipart/form-data" method="post">    
    <fieldset>
        Select a file <input type="file" name="file" />
        <input type="submit" value="Upload" />
    </fieldset>
</form>

Di sisi lain jika Anda menulis kode ini dalam konteks konstruksi sisi server lain seperti ifatau foreachAnda harus menghapus @sebelum using. Sebagai contoh:

@if (SomeCondition)
{
    using (Html.BeginForm("Upload", "Upload", FormMethod.Post, 
                                      new { enctype = "multipart/form-data" }))
    {
        @Html.ValidationSummary(true)
        <fieldset>
            Select a file <input type="file" name="file" />
            <input type="submit" value="Upload" />
        </fieldset>
    }
}

Sejauh menyangkut kode sisi server Anda, inilah cara untuk melanjutkan :

[HttpPost]
public ActionResult Upload(HttpPostedFileBase file) 
{
    if (file != null && file.ContentLength > 0) 
    {
        var fileName = Path.GetFileName(file.FileName);
        var path = Path.Combine(Server.MapPath("~/content/pics"), fileName);
        file.SaveAs(path);
    }
    return RedirectToAction("Upload");
}