FileUploadFor

gistfile1.cs

using MvcInputExtensions = System.Web.Mvc.Html.InputExtensions;

    public static class InputExtensions
    {
        public static MvcHtmlString FileUploadFor<TModel, TProperty>(this HtmlHelper<TModel> html, Expression<Func<TModel, TProperty>> expression)
        {
            return MvcInputExtensions.TextBoxFor<TModel, TProperty>(html, expression, htmlAttributes: new { type = "file" });
        }

    }