这将更有意义使用HttpPostedFileBase重新present上传文件，您的视图模型，而不是字符串：

 公共类DR405Model
{
    [数据类型（DataType.Text）
    公共字符串TaxPayerId {搞定;组; }    [数据类型（DataType.Text）
    公共字符串ReturnYear {搞定;组; }    公共HttpPostedFileBase文件{搞定;组; }
}
 

然后你可以有以下几种观点：

 ＆LT;％使用（Html.BeginForm（指数，家，FormMethod.Post，新{ENCTYPE =的multipart / form-data的}））{％GT ;    ......其他看法模特属性输入字段    ＆LT; D​​IV CLASS =主编场＆GT;
        ＆LT;％= Html.EditorFor（型号=＆GT; model.File）％GT;
        ＆LT;％= Html.ValidationMessageFor（型号=＆GT; model.File）％GT;
    ＆LT; / DIV＆GT;    ＆LT;输入类型=提交VALUE =OK/＆GT;
＆LT;％}％GT;
 

最后确定内部相应的编辑模板〜/查看/共享/ EditorTemplates / HttpPostedFileBase.ascx ：

 ＆LT;％@控制语言=C＃继承=System.Web.Mvc.ViewUserControl％GT;
＆LT;输入类型=文件名称=＆LT;％：ViewData.TemplateInfo.GetFullHtmlFieldName（）％GT; ID =下;％：ViewData.TemplateInfo.GetFullHtmlFieldId（）％＆gt;中/＆GT;
 

现在控制器可能是这样的：

 公共类HomeController的：控制器
{
    公众的ActionResult指数（）
    {
        返回查看（新DR405Model（））;
    }    [HttpPost]
    公众的ActionResult指数（DR405Model模型）
    {
        如果（model.File =空＆放大器;！＆放大器; model.File.ContentLength大于0）
        {
            变种文件名= Path.GetFileName（model.File.FileName）;
            VAR路径= Path.Combine（使用Server.Mappath（〜/ App_Data文件），文件名）;
            model.File.SaveAs（路径）;
        }        返回RedirectToAction（「指数」）;
    }
}
 

Given this model, is it possible to use the Html.EditorFor() to render a file upload input element to the page? I played around with the Datatype of the property FileName, and it was definitely impacting the editor form rendered.

public class DR405Model
{
    [DataType(DataType.Text)]
    public String TaxPayerId { get; set; }
    [DataType(DataType.Text)]
    public String ReturnYear { get; set; }

    public String  FileName { get; set; }
}

Strongly Typed *.aspx page looks like this

    <div class="editor-field">
        <%: Html.EditorFor(model => model.FileName) %>
        <%: Html.ValidationMessageFor(model => model.FileName) %>
    </div>

It would make more sense to use HttpPostedFileBase to represent an uploaded file on your view model instead of string:

public class DR405Model
{
    [DataType(DataType.Text)]
    public string TaxPayerId { get; set; }

    [DataType(DataType.Text)]
    public string ReturnYear { get; set; }

    public HttpPostedFileBase File { get; set; }
}

then you could have the following view:

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

    ... input fields for other view model properties

    <div class="editor-field">
        <%= Html.EditorFor(model => model.File) %>
        <%= Html.ValidationMessageFor(model => model.File) %>
    </div>

    <input type="submit" value="OK" />
<% } %>

And finally define the corresponding editor template inside ~/Views/Shared/EditorTemplates/HttpPostedFileBase.ascx:

<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl" %>
<input type="file" name="<%: ViewData.TemplateInfo.GetFullHtmlFieldName("") %>" id="<%: ViewData.TemplateInfo.GetFullHtmlFieldId("") %>" />

Now the controller might look like this:

public class HomeController : Controller
{
    public ActionResult Index()
    {
        return View(new DR405Model());
    }

    [HttpPost]
    public ActionResult Index(DR405Model model)
    {
        if (model.File != null && model.File.ContentLength > 0)
        {
            var fileName = Path.GetFileName(model.File.FileName);
            var path = Path.Combine(Server.MapPath("~/App_Data"), fileName);
            model.File.SaveAs(path);
        }

        return RedirectToAction("Index");
    }
}