Html.BeginForm和Ajax.BeginForm在同一视图中

Question

我打算在同一视图中使用ajax和表单提交添加文件上传

@model project_name.Models.ProductFinanceFeatures

@{
 }

<h2>--------File_Upload-------------</h2>

@using (Ajax.BeginForm("Financing_Product_Feature_Upload", "FileUpload", new { enctype = "multipart/form-data" }, new AjaxOptions() { HttpMethod = "POST" }))
{
    @Html.AntiForgeryToken()

    <input type="file" name="files">
    <input type="submit" value="Upload File to Server">
}    

<h2>-------Form_Submission-----</h2>

@using (Html.BeginForm())
{
    @Html.AntiForgeryToken()   

    <div class="form-horizontal">          
          ......                  
    </div>
}

这是我的ajax控制器类方法

    [HttpPost]
    public ActionResult Financing_Product_Feature_Upload(HttpPostedFileBase files)
    {
      ...
    }

一旦我选择了一个文件并单击“上传”按钮，然后我调试了这个我可以看到files值变为null