namespace Protal.Model.Abstract

{

    /// <summary>

    /// 分页处理

    /// </summary>

   public interface IPager

    {

        /// <summary>

        /// 每页项目数

        /// </summary>

        /// <value>The page item count.</value>

      int  PageItemCount { get; set; }

      /// <summary>

      /// 总页数

      /// </summary>

      /// <value>The totoal page.</value>

       int TotoalPage { get; }

       /// <summary>

       /// 显示的页数

       /// </summary>

       /// <value>The display page.</value>

       int DisplayPage { get; set; }

       /// <summary>

       /// 满足条件的总数目

       /// </summary>

        int TotalItem { get; set; }

    }

}

 public interface IUsersRepository : IPager

    {

        /// <summary>

        /// Post list

        /// </summary>

        /// <param name="order">Order expression</param>

        /// <param name="filter">Filter expression</param>

        /// <param name="skip">Records to skip</param>

        /// <param name="take">Records to take</param>

        /// <returns>List of users</returns>

        IEnumerable<User> Find(int order=,string filter="", int skip = , int take = );

        /// <summary>

        /// Get single post

        /// </summary>

        /// <param name="name">User id</param>

        /// <returns>User object</returns>

        User FindByName(string name);

        /// <summary>

        /// Add new user

        /// </summary>

        /// <param name="user">Blog user</param>

        /// <returns>Saved user</returns>

        User Add(User user);

        /// <summary>

        /// Update user

        /// </summary>

        /// <param name="user">User to update</param>

        /// <returns>True on success</returns>

        bool Update(User user);

        /// <summary>

        /// Save user profile

        /// </summary>

        /// <param name="user">Blog user</param>

        /// <returns>True on success</returns>

        bool SaveProfile(User user);

        /// <summary>

        /// Delete user

        /// </summary>

        /// <param name="userName">User ID</param>

        /// <returns>True on success</returns>

        bool Remove(string userName);

    }

 public class UsersRepository : IUsersRepository

   {

       /// <summary>

       /// The _user list

       /// </summary>

        private List<User> _userList = new List<User>();

       /// <summary>

       /// The _page item count

       /// </summary>

        private int _pageItemCount;

        /// <summary>

        /// The _display page

        /// </summary>

        private int _displayPage;

        /// <summary>

        /// The _usercount

        /// </summary>

        private int _usercount;

        /// <summary>

        /// The _total item

        /// </summary>

        private int _totalItem;

        /// <summary>

        /// 标记是否有查询条件 没有的话则返回全部数目

        /// </summary>

        private Func<User, bool> _func;

        /// <summary>

        /// Gets or sets the users.

        /// </summary>

        /// <value>The users.</value>

        public List<User> Users

       {

           get

           {

               int count;

               var usercollection = Membership.GetAllUsers(, , out count);

               if (count == _usercount) return _userList;

               _usercount = count;

               var members = usercollection.Cast<MembershipUser>().ToList();

               foreach (var membershipUser in members)//这里存在一个转换

               {

                   _userList.Add(new User

                   {

                       Email = membershipUser.Email,

                       UserName = membershipUser.UserName,

                       //roles password

                   });

               }

               return _userList;

           }

           set { _userList = value; }

       }

//查询
public IEnumerable<User> Find(int order = , string filter = "", int skip = , int take = )

       {

           if (take == ) take = Users.Count;
           //过滤

            _func = string.IsNullOrEmpty(filter) ? (Func<User, bool>) (n => n.UserName != "") : (n => n.UserName.Contains(filter));

            var users = Users.Where(_func).ToList();

            //更新总数目

           _totalItem = users.Count;

           users = order ==  ? users.OrderBy(n => n.UserName).ToList() : users.OrderByDescending(n => n.UserName).ToList();

            return users.Skip(skip).Take(take);

       }

  /// <summary>

       /// 每页项目数

       /// </summary>

       /// <value>The page item count.</value>

        public int PageItemCount

        {

            get

            {

                if (_pageItemCount == )

                {

                    _pageItemCount = ProtalConfig.UserPageItemCount;

                }

                return _pageItemCount;

            }

            set { _pageItemCount = value; }

        }

        /// <summary>

        /// 总页数

        /// </summary>

        /// <value>The totoal page.</value>

        public int TotoalPage

        {

            get

            {

                var page = (int) Math.Ceiling((double) TotalItem/PageItemCount);

                return page==?:page;

            }

        }

        /// <summary>

        /// 显示的页数

        /// </summary>

        /// <value>The display page.</value>

        public int DisplayPage

        {

            get

            {

                if (_displayPage == )

                {

                    _displayPage = ProtalConfig.UserDisplayPage;

                }

                return _displayPage;

            }

            set { _displayPage = value; }

        }

        /// <summary>

        /// 满足条件的总数目 保持更新

        /// </summary>

        /// <value>The total item.</value>

        public int TotalItem

        {

            get

            {

                if (_func == null)

                    _totalItem = Users.Count;

                return _totalItem;

            }

            set { _totalItem = value; }

        }

}

    _kernel.Bind<IUsersRepository>().To<UsersRepository>();

   [Authorize]

    public class UserManagerController : Controller

    {

        /// <summary>

        /// The _repository

        /// </summary>

        private readonly IUsersRepository _repository;

        /// <summary>

        /// Initializes a new instance of the <see cref="UserManagerController"/> class.

        /// </summary>

        /// <param name="iRepository">The i repository.</param>

        public UserManagerController(IUsersRepository iRepository)

        {

            _repository = iRepository;

        }

        /// <summary>

        /// Indexes the specified page index.

        /// </summary>

        /// <param name="pageIndex">Index of the page.</param>

        /// <returns>ActionResult.</returns>

        public ActionResult Index(int pageIndex=)

        {

            ViewBag.DisplayPage = _repository.DisplayPage;

            pageIndex = HandlePageindex(pageIndex);

            //支持地址栏直接分页

            ViewBag.CurrentPage = pageIndex;

            return View();

        }

        /// <summary>

        /// Users table. 分页模块

        /// </summary>

        /// <param name="pageIndex">Index of the page.</param>

        /// <param name="order">The order.</param>

        /// <param name="filter">The filter str.</param>

        /// <returns>ActionResult.</returns>

        public ActionResult UserTable(int pageIndex = , int order = , string filter = "")

        {

            pageIndex = HandlePageindex(pageIndex);

            var skip = (pageIndex - ) * _repository.PageItemCount;

            var users = _repository.Find(order,filter, skip, _repository.PageItemCount);

            //总用户数

            ViewBag.TotalUser = _repository.TotalItem;

            //总页数

            ViewBag.TotalPageCount = _repository.TotoalPage; ;

            return PartialView(users);

        }

        /// <summary>

        /// 处理页数 防止过大或过小

        /// </summary>

        /// <param name="index"></param>

        /// <returns></returns>

        private int HandlePageindex(int index)

        {

            var totoalpage = _repository.TotoalPage;

            if (index == ) return ;

            return index > totoalpage ? totoalpage : index;

        }
}

<script src="~/Scripts/form.js"></script>

<div class="container">

    <h4 class="bottomline">管理用户</h4>

    <p>

        <button data-target="#adduser" id="adduserbt" data-toggle="modal" class="btn btn-info btn-hover">新增用户</button>

        <button class="btn btn-danger" id="deluser">删除</button>

        <span class="errorinfo"></span>

        <input type="search" class="pull-right" id="usersearch" placeholder="搜索"/>

    </p>

    <div id="userpart">

          @Html.Action("UserTable",new{pageIndex=ViewBag.CurrentPage})

    </div>

    <div  id="userpager"></div>

    <input type="hidden" id="dispalypage" value="@ViewBag.DisplayPage"/>

    <input type="hidden" id="page" value="@ViewBag.CurrentPage"/>

    <input type="hidden" id="currentpage" value="@ViewBag.CurrentPage"/>

</div>

<div class="modal fade adduserbox"id="adduser" tabindex="1" role="dialog" aria-hidden="true">

    <div class="modal-content">

        <div class="modal-header">

             <button type="button" class="close" data-dismiss="modal" aria-hidden="true" >&times;</button>

             <h4 class="modal-title">Add new User</h4>

        </div>

        <div class="modal-body">

           @{

               Html.RenderAction("Create","UserManager");

            }

        </div>

    </div>

</div>

@section Scripts {

    @Scripts.Render("~/bundles/jqueryval")

}

@model IEnumerable<Protal.Model.Data.User.User>

 <table id="usertable" class="table table-striped table-condensed table-hover table-bordered">

        <tr>

            <th><input type="checkbox" id="allcheck" /><label for="allcheck">全选</label></th>

            <th><a href="#" id="usersort" data-order="0" class="glyphicon-sort">名称</a></th>

            <th>角色</th>

            <th>E-mail</th>

        </tr>

        <tbody>

            @foreach (var item in Model) {

                <tr>

                    <td> <input type="checkbox" data-id="@item.UserName" /></td>

                    <td> <a>@item.UserName</a> </td>

                    <td> @Html.Raw(item.Role) </td>

                    <td> @item.Email</td>

                </tr>

            }</tbody>

     <tfoot>

         <tr>

             <td colspan="4">

                  <span>@Html.Raw("共"+ViewBag.TotalUser+"人")</span> @*<span>@ViewBag.TotalPageCount</span>*@

             </td>

         </tr>

     </tfoot>

    </table>

  <input type="hidden" id="totoalpage" value="@ViewBag.TotalPageCount"/>