asp.net 拖拽上传文件

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;

namespace uploadfilesAjax
{
    public class MvcApplication : System.Web.HttpApplication
    {
        protected void Application_Start（）
        {
            AreaRegistration.RegisterAllAreas（）;
            RouteConfig.RegisterRoutes（RouteTable.Routes）;
        }
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2017-01-17 01:47  App_Code\
     文件        6765  2017-01-17 01:47  App_Code\file_utility.cs
     目录           0  2017-01-17 01:43  App_Data\
     目录           0  2017-01-17 01:43  App_Start\
     文件         608  2017-01-17 01:43  App_Start\RouteConfig.cs
     目录           0  2017-01-17 01:48  bin\
     文件       29344  2015-06-15 02:06  bin\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.dll
     文件        1805  2015-06-15 02:06  bin\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.xml
     文件       45416  2012-04-23 15:23  bin\Microsoft.Web.Infrastructure.dll
     目录           0  2017-01-17 01:48  bin\roslyn\
     文件       41608  2015-06-18 20:19  bin\roslyn\csc.exe
     文件       85192  2015-06-18 20:19  bin\roslyn\Microsoft.Build.Tasks.CodeAnalysis.dll
     文件     4000448  2015-06-18 20:19  bin\roslyn\Microsoft.CodeAnalysis.CSharp.dll
     文件     1724080  2015-06-18 20:19  bin\roslyn\Microsoft.CodeAnalysis.dll
     文件     4901064  2015-06-18 20:19  bin\roslyn\Microsoft.CodeAnalysis.VisualBasic.dll
     文件        6416  2015-06-18 20:19  bin\roslyn\Microsoft.CSharp.Core.targets
     文件        5846  2015-06-18 20:19  bin\roslyn\Microsoft.VisualBasic.Core.targets
     文件      204544  2015-06-18 20:19  bin\roslyn\System.Collections.Immutable.dll
     文件      262896  2015-06-18 20:19  bin\roslyn\System.Reflection.metadata.dll
     文件       41608  2015-06-18 20:19  bin\roslyn\vbc.exe
     文件       63648  2015-06-18 20:19  bin\roslyn\VBCSCompiler.exe
     文件         563  2015-06-18 20:19  bin\roslyn\VBCSCompiler.exe.config
     文件      139976  2015-01-28 04:04  bin\System.Web.Helpers.dll
     文件       74850  2015-01-28 04:04  bin\System.Web.Helpers.xml
     文件      566472  2015-01-28 04:02  bin\System.Web.Mvc.dll
     文件      952428  2015-01-28 04:02  bin\System.Web.Mvc.xml
     文件      272072  2015-01-28 04:02  bin\System.Web.Razor.dll
     文件      522146  2015-01-28 04:02  bin\System.Web.Razor.xml
     文件       41672  2015-01-28 04:04  bin\System.Web.Webpages.Deployment.dll
     文件        4867  2015-01-28 04:04  bin\System.Web.Webpages.Deployment.xml
     文件      211656  2015-01-28 04:04  bin\System.Web.Webpages.dll
............此处省略70个文件信息