• 最近淘到的MVC分页Helper


    首先:看一下效果图:

    PagerHelper.cs

    代码
    1 using System;
    2 using System.Collections.Generic;
    3 using System.Collections.Specialized;
    4 using System.Linq;
    5 using System.Web;
    6 using System.Text;
    7 using System.Web.Mvc;
    8 using System.Web.Routing;
    9 using System.Data.Objects.DataClasses;
    10 namespace System.Web.Mvc
    11 {
    12 public static class PagerHelper
    13 {
    14 ///
    15 /// 分页
    16 ///
    17 ///
    18 /// 分页id
    19 /// 当前页
    20 /// 分页尺寸
    21 /// 记录总数
    22 /// 分页头标签属性
    23 /// 分页样式
    24 /// 分页模式
    25 ///
    26 public static string Pager(this HtmlHelper helper, string id, int currentPageIndex, int pageSize, int recordCount, object htmlAttributes, string className,PageMode mode)
    27 {
    28 TagBuilder builder = new TagBuilder("table");
    29 builder.IdAttributeDotReplacement = "_";
    30 builder.GenerateId(id);
    31 builder.AddCssClass(className);
    32 builder.MergeAttributes(new RouteValueDictionary(htmlAttributes));
    33 builder.InnerHtml = GetNormalPage(currentPageIndex, pageSize, recordCount,mode);
    34 return builder.ToString();
    35 }
    36 ///
    37 /// 分页
    38 ///
    39 ///
    40 /// 分页id
    41 /// 当前页
    42 /// 分页尺寸
    43 /// 记录总数
    44 /// 分页样式
    45 ///
    46 public static string Pager(this HtmlHelper helper, string id, int currentPageIndex, int pageSize, int recordCount, string className)
    47 {
    48 return Pager(helper, id, currentPageIndex, pageSize, recordCount, null, className,PageMode.Normal);
    49 }
    50 ///
    51 /// 分页
    52 ///
    53 ///
    54 /// 分页id
    55 /// 当前页
    56 /// 分页尺寸
    57 /// 记录总数
    58 ///
    59 public static string Pager(this HtmlHelper helper,string id,int currentPageIndex,int pageSize,int recordCount)
    60 {
    61 return Pager(helper, id, currentPageIndex, pageSize, recordCount,null);
    62 }
    63 ///
    64 /// 分页
    65 ///
    66 ///
    67 /// 分页id
    68 /// 当前页
    69 /// 分页尺寸
    70 /// 记录总数
    71 /// 分页模式
    72 ///
    73 public static string Pager(this HtmlHelper helper, string id, int currentPageIndex, int pageSize, int recordCount,PageMode mode)
    74 {
    75 return Pager(helper, id, currentPageIndex, pageSize, recordCount, null,mode);
    76 }
    77 ///
    78 /// 分页
    79 ///
    80 ///
    81 /// 分页id
    82 /// 当前页
    83 /// 分页尺寸
    84 /// 记录总数
    85 /// 分页样式
    86 /// 分页模式
    87 ///
    88 public static string Pager(this HtmlHelper helper, string id, int currentPageIndex, int pageSize, int recordCount,string className, PageMode mode)
    89 {
    90 return Pager(helper, id, currentPageIndex, pageSize, recordCount, null,className,mode);
    91 }
    92 ///
    93 /// 获取普通分页
    94 ///
    95 ///
    96 ///
    97 ///
    98 ///
    99 private static string GetNormalPage(int currentPageIndex, int pageSize, int recordCount,PageMode mode)
    100 {
    101 int pageCount = (recordCount%pageSize ==0?recordCount/pageSize:recordCount/pageSize+1);
    102 StringBuilder url = new StringBuilder();
    103 url.Append(HttpContext.Current.Request.Url.AbsolutePath+"?page={0}");
    104 NameValueCollection collection = HttpContext.Current.Request.QueryString;
    105 string[] keys = collection.AllKeys;
    106 for (int i = 0; i < keys.Length; i++)
    107 {
    108 if (keys[i].ToLower() != "page")
    109 url.AppendFormat("&{0}={1}", keys[i], collection[keys[i]]);
    110 }
    111 StringBuilder sb = new StringBuilder();
    112 sb.Append("");
    113 sb.AppendFormat("总共{0}条记录,共{1}页,当前第{2}页 ", recordCount, pageCount, currentPageIndex);
    114 if (currentPageIndex == 1)
    115 sb.Append("首页 ");
    116 else
    117 {
    118 string url1 = string.Format(url.ToString(), 1);
    119 sb.AppendFormat("首页 ", url1);
    120 }
    121 if (currentPageIndex > 1)
    122 {
    123 string url1 = string.Format(url.ToString(), currentPageIndex - 1);
    124 sb.AppendFormat("上一页 ", url1);
    125 }
    126 else
    127 sb.Append("上一页 ");
    128 if(mode == PageMode.Numeric)
    129 sb.Append(GetNumericPage(currentPageIndex,pageSize,recordCount,pageCount,url.ToString()));
    130 if (currentPageIndex < pageCount)
    131 {
    132 string url1 = string.Format(url.ToString(), currentPageIndex+1);
    133 sb.AppendFormat("下一页 ", url1);
    134 }
    135 else
    136 sb.Append("下一页 ");
    137
    138 if (currentPageIndex == pageCount)
    139 sb.Append("末页 ");
    140 else
    141 {
    142 string url1 = string.Format(url.ToString(), pageCount);
    143 sb.AppendFormat("末页 ", url1);
    144 }
    145 return sb.ToString();
    146 }
    147 ///
    148 /// 获取数字分页
    149 ///
    150 ///
    151 ///
    152 ///
    153 ///
    154 ///
    155 ///
    156 private static string GetNumericPage(int currentPageIndex, int pageSize, int recordCount, int pageCount,string url)
    157 {
    158 int k = currentPageIndex / 10;
    159 int m = currentPageIndex % 10;
    160 StringBuilder sb = new StringBuilder();
    161 if (currentPageIndex / 10 == pageCount / 10)
    162 {
    163 if (m == 0)
    164 {
    165 k--;
    166 m = 10;
    167 }
    168 else
    169 m = pageCount%10;
    170 }
    171 else
    172 m = 10;
    173 for (int i = k * 10 + 1; i <= k * 10 + m; i++)
    174 {
    175 if (i == currentPageIndex)
    176 sb.AppendFormat("{0} ", i);
    177 else
    178 {
    179 string url1 = string.Format(url.ToString(), i);
    180 sb.AppendFormat("{1} ",url1, i);
    181 }
    182 }
    183
    184 return sb.ToString();
    185 }
    186 }
    187 ///
    188 /// 分页模式
    189 ///
    190 public enum PageMode
    191 {
    192 ///
    193 /// 普通分页模式
    194 ///
    195 Normal,
    196 ///
    197 /// 普通分页加数字分页
    198 ///
    199 Numeric
    200 }
    201 }
    202

    PagerQuery.cs包含两个属性,

    一个是PageInfo实体类属性Pager,包含RecordCount,CurrentPageIndex,PageSize三个属性。

    一个是Model EntityList属性。 

    代码
    1 using System;
    2 using System.Collections.Generic;
    3 using System.Linq;
    4 using System.Web;
    5
    6 namespace System.Web.Mvc
    7 {
    8 public class PagerQuery<TPager,TEntityList>
    9 {
    10 public PagerQuery(TPager pager, TEntityList entityList)
    11 {
    12 this.Pager = pager;
    13 this.EntityList = entityList;
    14 }
    15 public TPager Pager { get; set; }
    16 public TEntityList EntityList { get; set; }
    17 }
    18 }

    pageinfo.cs

    代码
    1 using System;
    2 using System.Collections.Generic;
    3 using System.Linq;
    4 using System.Web;
    5
    6 namespace System.Web.Mvc
    7 {
    8 public class PagerInfo
    9 {
    10 public int RecordCount { get; set; }
    11
    12 public int CurrentPageIndex { get; set; }
    13
    14 public int PageSize { get; set; }
    15 }
    16 }

    使用示例:

    代码
    <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage>>" %>

    <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">
    NewsList
    asp:Content
    >

    <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">

    <h2>NewsListh2>

    <table>
    <tr>
    <th>th>
    <th>
    NoteID
    th
    >
    <th>
    Title
    th
    >
    <th>
    Author
    th
    >
    <th>
    Hit
    th
    >
    <th>
    ReplyNum
    th
    >

    tr
    >

    <% foreach (var item in Model.EntityList) { %>

    <tr>
    <td>
    <%= Html.ActionLink("Edit", "Edit", new { /* id=item.PrimaryKey */ }) %> |
    <%= Html.ActionLink("Details", "NewsDetail", new { noteID=item.NoteID })%>
    td
    >
    <td>
    <%= Html.Encode(item.NoteID) %>
    td
    >
    <td>
    <%= Html.Encode(item.Title) %>
    td
    >
    <td>
    <%= Html.Encode(item.Author)%>
    td
    >
    <td>
    <%= Html.Encode(item.Hit)%>
    td
    >
    <td>
    <%= Html.Encode(item.ReplyNum)%>
    td
    >

    tr
    >

    <% } %>

    table
    >

    <p>
    <%=Html.Pager("pager",Model.Pager.CurrentPageIndex,Model.Pager.PageSize,Model.Pager.RecordCount,PageMode.Numeric) %>
    p
    >

    asp:Content
    >

    Controler:

    代码
    [AcceptVerbs(HttpVerbs.Get)]
    2 public ActionResult NewsList(int boardID,int? page)
    3 {
    4 PagerInfo pager = new PagerInfo();
    5 NewsArticleInfo info = new NewsArticleInfo();
    6 info.NewsBoard = new NewsBoardInfo();
    7 info.NewsBoard.BoardID = boardID;
    8 pager.RecordCount = Resolve<INewsBLL>().GetArticleDataList(info, ArticleTypeEnum.Pass);
    9 pager.PageSize = 10;
    10 pager.CurrentPageIndex = (page!=null?(int)page:1);
    11 IList<NewsArticleInfo> result = Resolve<INewsBLL>().GetArticleDataList(pager.CurrentPageIndex, pager.PageSize, ArticleTypeEnum.Pass, info);
    12 PagerQuery<PagerInfo, IList<NewsArticleInfo>> query = new PagerQuery<PagerInfo, IList<NewsArticleInfo>>(pager,result);
    13 return View(query);
    14 }

    转自:http://kb.cnblogs.com/page/55798/

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  • 原文地址:https://www.cnblogs.com/gaoshuai/p/1755792.html
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