ASP.NET MVC为用户创建专属文件夹

using System.ComponentModel.DataAnnotations;

namespace MvcApplication1.Models
{
    public class User
    {
        public int Id { get; set; }

        [Display(Name = "用户类型")]
        [Required(ErrorMessage = "必填")]
        public short UserType { get; set; }

        [Display(Name = "用户名")]
        [Required(ErrorMessage = "必填")]
        [StringLength(10, MinimumLength = 2, ErrorMessage = "长度2-10位")]
        public string UserName { get; set; }
    }
}

using MvcApplication1.Extension;

namespace MvcApplication1.Models
{
    public enum UserTypeEnum
    {
        Gold = 0,
        Silver = 1
    }
}

using MvcApplication1.Extension;

namespace MvcApplication1.Models
{
    public enum UserTypeEnum
    {
        [EnumDisplayName("金牌会员")]
        Gold = 0,
        [EnumDisplayName("银牌会员")]
        Silver = 1
    }
}

using System;

namespace MvcApplication1.Extension
{
    public class EnumDisplayNameAttribute : Attribute
    {
        private string _displayName;
        public EnumDisplayNameAttribute(string displayName)
        {
            _displayName = displayName;
        }

        public string DisplayName
        {
            get
            {
                return _displayName;
            }
        }
    }
}

using System;
using System.Collections.Generic;
using System.Reflection;
using System.Web.Mvc;

namespace MvcApplication1.Extension
{
    public class EnumExt
    {
        /// <summary>
        /// 获取枚举成员的自定义Attribute的一个属性值
        /// </summary>
        /// <param name="e">枚举成员</param>
        /// <returns></returns>
        public static string GetEnumDescription(object e)
        {
            //获取枚举成员的Type对象
            Type t = e.GetType();

            //获取Type对象的所有字段
            FieldInfo[] ms = t.GetFields();

            //遍历所有字段
            foreach (FieldInfo f in ms)
            {
                if (f.Name != e.ToString())
                {
                    continue;
                }

                if (f.IsDefined(typeof(EnumDisplayNameAttribute), true))
                {
                    return (f.GetCustomAttributes(typeof(EnumDisplayNameAttribute), true)[0] as EnumDisplayNameAttribute).DisplayName;
                }
            }
            return e.ToString();
        }

        public static List<SelectListItem> GetSelectList(Type enumType)
        {
            List<SelectListItem> selectList = new List<SelectListItem>();
            //selectList.Add(new SelectListItem{Text = "--请选择--",Value = ""});
            foreach (object e in Enum.GetValues(enumType))
            {
                selectList.Add(new SelectListItem { Text = GetEnumDescription(e), Value = ((int)e).ToString() });
            }
            return selectList;
        }
    }
}

using System.IO;
using System.Web.Mvc;
using MvcApplication1.Extension;
using MvcApplication1.Models;

namespace MvcApplication1.Controllers
{
    public class HomeController : Controller
    {
        public ActionResult AddUser()
        {
            ViewData["ut"] = EnumExt.GetSelectList(typeof (UserTypeEnum));
            return View();
        }

        //根文件夹
        private const string main_Dir = @"F:/Users";

        [HttpPost]
        public ActionResult AddUser(User user)
        {
            ViewData["ut"] = EnumExt.GetSelectList(typeof(UserTypeEnum));
            if (ModelState.IsValid)
            {
                //创建用户文件夹
                CreateDir(user.UserType, user.UserName);

                return Content("用户专属文件夹创建成功！");
            }
            return View(user);
        }

        //根据文件名和用户类型创建文件夹
        private static void CreateDir(short userType, string subdir)
        {
            //需要创建的文件夹的路径
            string path = "";
            switch (userType)
            {
                case (short)UserTypeEnum.Gold:
                    path = main_Dir + "/" + "Gold/" + subdir;
                    break;
                case (short)UserTypeEnum.Silver:
                    path = main_Dir + "/" + "Silver/" + subdir;
                    break;
                default:
                    path = main_Dir + "/" + "Silver/" + subdir;
                    break;
            }
            Directory.CreateDirectory(path);
        }
    }
}

@model MvcApplication1.Models.User

@{
    ViewBag.Title = "AddUser";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

<style type="text/css">
    ul {
        list-style-type: none;
    }
</style>

<h2>AddUser</h2>

@using (Html.BeginForm("AddUser", "Home", FormMethod.Post, new {id = "addForm"}))
{
    <ul>
        <li>
            @Html.LabelFor(u => u.UserName)
            @Html.EditorFor(u => u.UserName)
            @Html.ValidationMessageFor(u => u.UserName)
        </li>
        <li>
            @Html.LabelFor(u => u.UserType)
            @Html.DropDownListFor(u => u.UserType, (List<SelectListItem>)ViewData["ut"],"==选择用户类型==")
            @Html.ValidationMessageFor(u => u.UserType)
        </li>
    </ul>
    
    <input type="submit" value="创建"/>
}