using System;

namespace System.Web.Mvc
{
 /// <summary>
 /// 管理员权限验证
 /// </summary>
 public class AdminAuthorizeAttribute:AuthorizeAttribute
 {
 protected override bool AuthorizeCore(HttpContextBase httpContext)
 {
 return true;
 }
 }
} 

/// <summary>
 /// 用户组列表
 /// </summary>
 /// <param name="Id">用户组类型</param>
 /// <returns></returns>
 [AdminAuthorize]
 public ActionResult List(int Id = -1)
 {
 userGroupRsy = new UserGroupRepository();
 IQueryable<UserGroup> _userGroup;
 if (Id == -1) _userGroup = userGroupRsy.List();
 else _userGroup = userGroupRsy.List(Id);
 return View(_userGroup);
 } 

@model IEnumerable<Ninesky.Models.UserGroup>

@{
 ViewBag.Title = "用户组列表";
 Layout = "~/Views/Layout/_Manage.cshtml";
}
<div class="left">
 <div class="top"></div>
 左侧列表
</div>
<div class="split"></div>
<div class="workspace">
 <div class="inside">
 <div class="notebar">
 <img alt="" src="/UploadFiles/2021-04-02/UserGroup.gif">

运行浏览器里看下效果，还行。
现在应该添加一个下拉菜单，可以选择不同的用户组类型来显示相应类型的用户组
在【UserGroupController】添加属性TypeSelectList


/// <summary>
 /// 用户组类型的SelectList列表
 /// </summary>
 public List<SelectListItem> TypeSelectList
 {
 get
 {
 List<SelectListItem> _items = new List<SelectListItem>();
 _items.Add(new SelectListItem { Text = UserGroupType.Anonymous.ToString(), Value = ((int)UserGroupType.Anonymous).ToString() });
 _items.Add(new SelectListItem { Text = UserGroupType.Limited.ToString(), Value = ((int)UserGroupType.Limited).ToString() });
 _items.Add(new SelectListItem { Text = UserGroupType.Normal.ToString(), Value = ((int)UserGroupType.Normal).ToString() });
 _items.Add(new SelectListItem { Text = UserGroupType.Special.ToString(), Value = ((int)UserGroupType.Special).ToString() });
 return _items;
 }
 } 




修改[List]Action代码


/// <summary>
 /// 用户组列表
 /// </summary>
 /// <param name="Id">用户组类型</param>
 /// <returns></returns>
 [AdminAuthorize]
 public ActionResult List(int Id = -1)
 {
 userGroupRsy = new UserGroupRepository();
 IQueryable<UserGroup> _userGroup;
 if (Id == -1) _userGroup = userGroupRsy.List();
 else _userGroup = userGroupRsy.List(Id);
 var _typeLists = TypeSelectList;
 _typeLists.Insert(0, new SelectListItem { Text = "全部", Value = "-1" });
 if (_typeLists.Any(t => t.Value == Id.ToString())) _typeLists.SingleOrDefault(t => t.Value == Id.ToString()).Selected = true;
 ViewData.Add("GroupTypeList",_typeLists);
 return View(_userGroup);
 } 




在L.cshtml视图里@Html.ActionLink("添加用户组", "Add", "UserGroup")后面添加 

用户组类型：@Html.DropDownList("GroupTypeList")
底部添加


<script type="text/javascript">
 $("#GroupTypeList").change(function () {
 
 window.location.href = "/UserGroup/List/" + $(this).children("option:selected").val();
 })
</script> 


完成后的List.cshtml代码如下：


@model IEnumerable<Ninesky.Models.UserGroup>

@{
 ViewBag.Title = "用户组列表";
 Layout = "~/Views/Layout/_Manage.cshtml";
}
<div class="left">
 <div class="top"></div>
 左侧列表
</div>
<div class="split"></div>
<div class="workspace">
 <div class="inside">
 <div class="notebar">
 <img alt="" src="/UploadFiles/2021-04-02/UserGroup.gif">

完成，浏览器中查看一下



以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。