在mvc中基于其输入类型的asp.net属性(id)重新命名文件

View:

观点:

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

   <div class="upload">

     <input type="file" name="files" id="EpExpert"/>
     <input type="file" name="files" id="EpNewbie"/>
     <input type="submit" name="submit" value="submit" id="submit"/>
   </div>

 }
 @using (Html.BeginForm("Edit","p