Asp.Net MVC实现分页、检索、排序的代码展示

很多时候需要这样的功能，对表格进行分页、排序和检索。本篇文章主要介绍了Asp.Net MVC 分页、检索、排序整体实现，有兴趣的可以了解一下。

很多时候需要这样的功能，对表格进行分页、排序和检索。这个有很多实现的方式，有现成的表格控件、用前端的mvvm，用户控件。但很多时候看着很漂亮的东西你想进一步控制的时候却不那么如意。这里自己实现一次，功能不是高大全，但求一个清楚明白，也欢迎园友拍砖。前端是bootstrap3+jPaginate，后台基于membership。没什么难点。

先上效果图。

分页其实就是处理好每页项目数、总项目数、总页数、当前页。为了方便复用，就先从仓库开始说起。

一、建立仓库

1.定义Ipager接口，需要分页的模型仓库继承这个接口

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; }  }}

2.定义IUsersRepository，主要处理User 相关的业务逻辑。Find函数是主要的查询方法，order表示顺反排序。

 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=0,string filter="", int skip = 0, int take = 10);    /// <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);  }

二、仓库的实现和绑定

主要方法：Membership的中的User和我们自定义的不一样，所以存在一个转换

 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(0, 999, 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 = 0, string filter = "", int skip = 0, int take = 10)    {      if (take == 0) 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 == 0 ? 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 == 0)        {          _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==0?1:page;       }    }    /// <summary>    /// 显示的页数    /// </summary>    /// <value>The display page.</value>    public int DisplayPage    {      get      {        if (_displayPage == 0)        {          _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; }    }}

ProtalConfig.UserDisplayPage 这里是通过配置实现一个默认页数，让用户可以再webconfig中更改行列的数目。

public static int UserPageItemCount        {          get          {            if (_userPageItemCount == 0)            {              _userPageItemCount = WebConfigurationManager.AppSettings["UserPageItemCount"] != null ?                Convert.ToInt16(WebConfigurationManager.AppSettings["UserPageItemCount"]) : 5;            }            return _userPageItemCount;          }          set          {            _userPageItemCount = value;          }        }

再进行绑定：

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

三、控制器部分

我们需要两个页面，一个主页面Index，一个负责局部刷新的部分视图 UserTable

下面是主要的方法，主要逻辑都在在仓库中处理了。

  [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=1)    {      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 = 1, int order = 0, string filter = "")    {      pageIndex = HandlePageindex(pageIndex);      var skip = (pageIndex - 1) * _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 == 0) return 1;      return index > totoalpage ? totoalpage : index;    }}

四、视图部分Html jquery

1.Index.cshtml

<script src="~/Scripts/form.js"></script><p 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>  <p id="userpart">     @Html.Action("UserTable",new{pageIndex=ViewBag.CurrentPage})  </p>  <p id="userpager"></p>  <input type="hidden" id="dispalypage" value="@ViewBag.DisplayPage"/>  <input type="hidden" id="page" value="@ViewBag.CurrentPage"/>  <input type="hidden" id="currentpage" value="@ViewBag.CurrentPage"/></p><p class="modal fade adduserbox"id="adduser" tabindex="1" role="dialog" aria-hidden="true">  <p class="modal-content">    <p class="modal-header">       <button type="button" class="close" data-dismiss="modal" aria-hidden="true" >×</button>       <h4 class="modal-title">Add new User</h4>    </p>    <p class="modal-body">      @{        Html.RenderAction("Create","UserManager");      }    </p>  </p></p>@section Scripts {  @Scripts.Render("~/bundles/jqueryval")}

2.UserTable.cshtml,角色部分还未处理，这个表格更新之后，也会更新满足条件的用户数和新的总页数，触发Jpaginate重新分页一次。

@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"/>

3.脚本

其中用到的像checkall，infoShow 都是自己扩展的一些简单的方法，用于全选和提示。

$(function () {    var options = {      dataType: 'json',      success: processJson    };    pageagin($("#totoalpage").val());    //分页    function pageagin(totalcount) {      $("#userpager").paginate({        count: totalcount,        start: $("#page").val(),        dispaly: $("#dispalypage").val(),        boder: false,        border_color: '#fff',//自己调整样式。        text_color: 'black',        background_color: 'none',        border_hover_color: '#ccc',        text_hover_color: '#000',        background_hover_color: '#fff',        images: false,        mouse: 'press',        onChange: function (page) { //翻页          paging(page);          $("#currentpage").val(page);        }      });    }    //分页更新    function paging(page) {      $.post("/Users/UserTable", { pageIndex: page, order: $("#userpart").attr("data-order"), filter: $.trim($("#usersearch").val()) }, function (data) {        $("#userpart").html(data);      });    }    //排序    $("#usersort").live("click",function () {      $("#userpart").triggerdataOrder();      paging( $("#currentpage").val());    });        //搜索    $("#usersearch").keyup(function() {      paging($("#currentpage").val());      pageagin($("#totoalpage").val());    });    //处理form    $("#userForm").submit(function () {      $(this).ajaxSubmit(options);      return false;    });    function processJson(data) {      if (data == 1) {        location.reload();      } else {        alert("添加失败");      }    }    //高亮    $("#unav li:eq(0)").addClass("active");    $("#adnav li:eq(2)").addClass("active");    //全选/全不选    $("#allcheck").checkall($("#usertable tbody input[type='checkbox']"));    //删除用户    $("#deluser").click(function () {      var checks = $("#usertable tbody input[type='checkbox']:checked");      var lens = checks.length;      if (lens == 0) {        $.infoShow("未选择删除对象",0);        return false;      }      if (confirm("确定要删除所选中用户？")) {        for (var i = 0; i < lens; i++) {          var $chek = checks.eq(i);          var id = $chek.attr("data-id");          var tr = $chek.parent().parent();          $.post("Users/DeleteUser", { id: id }, function (data) {            if (data == 1) {              tr.fadeOut();              $.infoShow("删除成功", 1);            } else {              $.infoShow("删除失败", 0);            }          });        }      }       return true;    });        // 增加用户    $("#adduserbt").click(function() {      $(".modal-header").show();    });  })

到这里就是全部的代码,供大家和自己参考。

再给大家看两个效果图，一个是kendoui的grid，一个是Angular做的分页。后面有机会给大家介绍。

Kendo- Grid

Kendo和MVC框架融合度比较高，它的核心代码如下：

@model IEnumerable<Kendo.Mvc.Examples.Models.ProductViewModel>@(Html.Kendo().Grid(Model)  .Name("Grid")  .Columns(columns =>  {    columns.Bound(p => p.ProductID).Groupable(false);    columns.Bound(p => p.ProductName);    columns.Bound(p => p.UnitPrice);    columns.Bound(p => p.UnitsInStock);  })  .Pageable()  .Sortable()  .Scrollable()   .Filterable()    .DataSource(dataSource => dataSource        .Ajax()    .ServerOperation(false)       ))

AngularJs 核心还是调用封装好的API函数，相当于上面的仓库中的方法，然后通过模型绑定。

总结一下：自己实现代码量比较多，功能不全，有重复造轮子的感觉，但可以较好的控制，基本够用；kendo的方式感觉高大全，用熟了开发速度快。就是多一些引用，且需要担心kendoui和其他的ui框架会有冲突。前端MVVM的方式我了解还不够深，感觉前端脚本的代码量也蛮多，效果不错。但生成的html代码很少。上面这个表格。chrome F12或者右键查看源码都是下面这样子的：

主要的就一个p

 <p data-ng-app="blogAdmin" data-ng-view="" id="ng-view"></p>

自我保护倒是蛮好，也就是SEO可能有问题。应该还有更好的方式，猿友们指点指点。

<html><head>  <title>Name of the blog (Admin)</title>  <link rel="shortcut icon" href="/pics/blogengine.ico" type="image/x-icon" />  <meta charset="utf-8" />  <meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1" />  <meta name="apple-mobile-web-app-capable" content="yes" />  <meta name="apple-mobile-web-app-status-bar-style" content="black" />  <meta name="format-detection" content="telephone=no" />  <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">  <link href="/Content/bootstrap/bootstrap.css" rel="stylesheet"/><link href="/Content/bootstrap/bootstrap-theme.css" rel="stylesheet"/><link href="/Content/toastr.css" rel="stylesheet"/><link href="/Content/font-awesome.css" rel="stylesheet"/><link href="/Content/editor.css" rel="stylesheet"/><link href="/Content/app.css" rel="stylesheet"/>  <script type="text/javascript">    if (navigator.userAgent.match(/IEMobile\/10\.0/)) {      var msViewportStyle = document.createElement("style");      var mq = "@-ms-viewport{width:auto!important}";      msViewportStyle.appendChild(document.createTextNode(mq));      document.getElementsByTagName("head")[0].appendChild(msViewportStyle);    }  </script></head><body>  <script type="text/javascript">    var SiteVars = {      ApplicationRelativeWebRoot: '/',      RelativeWebRoot: '/',      BlogInstanceId: '96d5b379-7e1d-4dac-a6ba-1e50db561b04',      UserName: 'admin',      UserRights: ['ViewDetailedErrorMessages', 'AccessAdminPages', 'AccessAdminSettingsPages', 'ManageWidgets', 'ViewPublicComments', 'ViewUnmoderatedComments', 'CreateComments', 'ModerateComments', 'ViewPublicPosts', 'ViewUnpublishedPosts', 'CreateNewPosts', 'EditOwnPosts', 'EditOtherUsersPosts', 'DeleteOwnPosts', 'DeleteOtherUsersPosts', 'PublishOwnPosts', 'PublishOtherUsersPosts', 'ViewPublicPages', 'ViewUnpublishedPages', 'CreateNewPages', 'EditOwnPages', 'ViewRatingsOnPosts', 'SubmitRatingsOnPosts', 'ViewRoles', 'CreateNewRoles', 'EditRoles', 'DeleteRoles', 'EditOwnRoles', 'EditOtherUsersRoles', 'CreateNewUsers', 'DeleteUserSelf', 'DeleteUsersOtherThanSelf', 'EditOwnUser', 'EditOtherUsers'],      AbsoluteWebRoot: 'http://localhost:53265/',      Version: 'BlogEngine.NET ' + '2.9.1.0',      IsPrimary: 'True',      IsAdmin: 'True',      AppRoot: function (url) { window.location = '/' + url; return false; },      BlogRoot: function (url) { window.location = '/' + url; }    };  </script>  <script type="text/javascript" src="admin.res.axd"></script>  <p id="container" class="app-wrapper ltr">    <p data-ng-app="blogAdmin" data-ng-view="" id="ng-view"></p>  </p>    <script src="/scripts/jquery-2.0.3.js"></script><script src="/scripts/jquery.validate.js"></script><script src="/scripts/jquery.form.js"></script><script src="/scripts/toastr.js"></script><script src="/Scripts/angular.min.js"></script><script src="/Scripts/angular-route.min.js"></script><script src="/Scripts/angular-animate.min.js"></script><script src="/Scripts/angular-sanitize.min.js"></script><script src="/admin/be-grid.js"></script><script src="/admin/app.js"></script><script src="/admin/controllers/dashboard.js"></script><script src="/admin/controllers/blogs.js"></script><script src="/admin/controllers/posts.js"></script><script src="/admin/controllers/pages.js"></script><script src="/admin/controllers/tags.js"></script><script src="/admin/controllers/categories.js"></script><script src="/admin/controllers/comments.js"></script><script src="/admin/controllers/users.js"></script><script src="/admin/controllers/roles.js"></script><script src="/admin/controllers/profile.js"></script><script src="/admin/controllers/settings.js"></script><script src="/admin/controllers/packages.js"></script><script src="/admin/controllers/common.js"></script><script src="/admin/services.js"></script><script src="/scripts/bootstrap.js"></script><script src="/scripts/moment.js"></script></body></html>

PS：这个东西没什么难度，逻辑都在仓库中，要源码的同学我后续分离出来了再贴出来。当然这个又很多方式，我也不是要秀什么框架，但我目前项目的需求是要这么分开的。一个控制器是可用解决所有问题，但我其他模型也要分页又要便于测试难道我都写在控制器中吗？

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