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服務器之家 - 編程語言 - ASP.NET教程 - 一個支持普通分頁和綜合分頁的MVC分頁Helper

一個支持普通分頁和綜合分頁的MVC分頁Helper

2020-03-24 14:21高山流水2012 ASP.NET教程

這篇文章主要為大家詳細介紹了一個支持普通分頁和綜合分頁的MVC分頁Helper,具有一定的參考價值,感興趣的小伙伴們可以參考一下

本人寫的一個分頁Helper,支持普通分頁(也就是,首頁、上一頁、下一頁、末頁等),綜合分頁(普通分頁和數字分頁的綜合)。

下面是分頁效果:

一個支持普通分頁和綜合分頁的MVC分頁Helper

分頁代碼:

PagerHelper.cs

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using System.Collections.Generic;
using System.Collections.Specialized;
using System.Linq;
using System.Web;
using System.Text;
using System.Web.Mvc;
using System.Web.Routing;
using System.Data.Objects.DataClasses;
namespace System.Web.Mvc
{
 public static class PagerHelper
 {
 /// <summary>
 /// 分頁
 /// </summary>
 /// <param name="helper"></param>
 /// <param name="id">分頁id</param>
 /// <param name="currentPageIndex">當前頁</param>
 /// <param name="pageSize">分頁尺寸</param>
 /// <param name="recordCount">記錄總數</param>
 /// <param name="htmlAttributes">分頁頭標簽屬性</param>
 /// <param name="className">分頁樣式</param>
 /// <param name="mode">分頁模式</param>
 /// <returns></returns>
 public static string Pager(this HtmlHelper helper, string id, int currentPageIndex, int pageSize, int recordCount, object htmlAttributes, string className,PageMode mode)
 {
  TagBuilder builder = new TagBuilder("table");
  builder.IdAttributeDotReplacement = "_";
  builder.GenerateId(id);
  builder.AddCssClass(className);
  builder.MergeAttributes(new RouteValueDictionary(htmlAttributes));
  builder.InnerHtml = GetNormalPage(currentPageIndex, pageSize, recordCount,mode);
  return builder.ToString();
 }
 /// <summary>
 /// 分頁
 /// </summary>
 /// <param name="helper"></param>
 /// <param name="id">分頁id</param>
 /// <param name="currentPageIndex">當前頁</param>
 /// <param name="pageSize">分頁尺寸</param>
 /// <param name="recordCount">記錄總數</param>
 /// <param name="className">分頁樣式</param>
 /// <returns></returns>
 public static string Pager(this HtmlHelper helper, string id, int currentPageIndex, int pageSize, int recordCount, string className)
 {
  return Pager(helper, id, currentPageIndex, pageSize, recordCount, null, className,PageMode.Normal);
 }
 /// <summary>
 /// 分頁
 /// </summary>
 /// <param name="helper"></param>
 /// <param name="id">分頁id</param>
 /// <param name="currentPageIndex">當前頁</param>
 /// <param name="pageSize">分頁尺寸</param>
 /// <param name="recordCount">記錄總數</param>
 /// <returns></returns>
 public static string Pager(this HtmlHelper helper,string id,int currentPageIndex,int pageSize,int recordCount)
 {
  return Pager(helper, id, currentPageIndex, pageSize, recordCount,null);
 }
 /// <summary>
 /// 分頁
 /// </summary>
 /// <param name="helper"></param>
 /// <param name="id">分頁id</param>
 /// <param name="currentPageIndex">當前頁</param>
 /// <param name="pageSize">分頁尺寸</param>
 /// <param name="recordCount">記錄總數</param>
 /// <param name="mode">分頁模式</param>
 /// <returns></returns>
 public static string Pager(this HtmlHelper helper, string id, int currentPageIndex, int pageSize, int recordCount,PageMode mode)
 {
  return Pager(helper, id, currentPageIndex, pageSize, recordCount, null,mode);
 }
 /// <summary>
 /// 分頁
 /// </summary>
 /// <param name="helper"></param>
 /// <param name="id">分頁id</param>
 /// <param name="currentPageIndex">當前頁</param>
 /// <param name="pageSize">分頁尺寸</param>
 /// <param name="recordCount">記錄總數</param>
 /// <param name="className">分頁樣式</param>
 /// <param name="mode">分頁模式</param>
 /// <returns></returns>
 public static string Pager(this HtmlHelper helper, string id, int currentPageIndex, int pageSize, int recordCount,string className, PageMode mode)
 {
  return Pager(helper, id, currentPageIndex, pageSize, recordCount, null,className,mode);
 }
 /// <summary>
 /// 獲取普通分頁
 /// </summary>
 /// <param name="currentPageIndex"></param>
 /// <param name="pageSize"></param>
 /// <param name="recordCount"></param>
 /// <returns></returns>
 private static string GetNormalPage(int currentPageIndex, int pageSize, int recordCount,PageMode mode)
 {
  int pageCount = (recordCount%pageSize ==0?recordCount/pageSize:recordCount/pageSize+1);
  StringBuilder url = new StringBuilder();
  url.Append(HttpContext.Current.Request.Url.AbsolutePath+"?page={0}");
  NameValueCollection collection = HttpContext.Current.Request.QueryString;
  string[] keys = collection.AllKeys;
  for (int i = 0; i < keys.Length; i++)
  {
  if (keys[i].ToLower() != "page")
   url.AppendFormat("&{0}={1}", keys[i], collection[keys[i]]);
  }
  StringBuilder sb = new StringBuilder();
  sb.Append("<tr><td>");
  sb.AppendFormat("總共{0}條記錄,共{1}頁,當前第{2}頁  ", recordCount, pageCount, currentPageIndex);
  if (currentPageIndex == 1)
  sb.Append("<span>首頁</span> ");
  else
  {
  string url1 = string.Format(url.ToString(), 1);
  sb.AppendFormat("<span><a href={0}>首頁</a></span> ", url1);
  }
  if (currentPageIndex > 1)
  {
  string url1 = string.Format(url.ToString(), currentPageIndex - 1);
  sb.AppendFormat("<span><a href={0}>上一頁</a></span> ", url1);
  }
  else
  sb.Append("<span>上一頁</span> ");
  if(mode == PageMode.Numeric)
  sb.Append(GetNumericPage(currentPageIndex,pageSize,recordCount,pageCount,url.ToString()));
  if (currentPageIndex < pageCount)
  {
  string url1 = string.Format(url.ToString(), currentPageIndex+1);
  sb.AppendFormat("<span><a href={0}>下一頁</a></span> ", url1);
  }
  else
  sb.Append("<span>下一頁</span> ");
 
  if (currentPageIndex == pageCount)
  sb.Append("<span>末頁</span> ");
  else
  {
  string url1 = string.Format(url.ToString(), pageCount);
  sb.AppendFormat("<span><a href={0}>末頁</a></span> ", url1);
  }
  return sb.ToString();
 }
 /// <summary>
 /// 獲取數字分頁
 /// </summary>
 /// <param name="currentPageIndex"></param>
 /// <param name="pageSize"></param>
 /// <param name="recordCount"></param>
 /// <param name="pageCount"></param>
 /// <param name="url"></param>
 /// <returns></returns>
 private static string GetNumericPage(int currentPageIndex, int pageSize, int recordCount, int pageCount,string url)
 {
  int k = currentPageIndex / 10;
  int m = currentPageIndex % 10;
  StringBuilder sb = new StringBuilder();
  if (currentPageIndex / 10 == pageCount / 10)
  {
  if (m == 0)
  {
   k--;
   m = 10;
  }
  else
   m = pageCount%10;
  }
  else
  m = 10;
  for (int i = k * 10 + 1; i <= k * 10 + m; i++)
  {
  if (i == currentPageIndex)
   sb.AppendFormat("<span><font color=red><b>{0}</b></font></span> ", i);
  else
  {
   string url1 = string.Format(url.ToString(), i);
   sb.AppendFormat("<span><a href={0}>{1}</a></span> ",url1, i);
  }
  }
  
  return sb.ToString();
 }
 }
 /// <summary>
 /// 分頁模式
 /// </summary>
 public enum PageMode
 {
 /// <summary>
 /// 普通分頁模式
 /// </summary>
 Normal,
 /// <summary>
 /// 普通分頁加數字分頁
 /// </summary>
 Numeric
 }
}

PagerQuery.cs包含兩個屬性,一個是PageInfo實體類屬性Pager,包含RecordCount,CurrentPageIndex,PageSize三個屬性。一個是Model EntityList屬性。

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
 
namespace System.Web.Mvc
{
 public class PagerQuery<TPager,TEntityList>
 {
 public PagerQuery(TPager pager, TEntityList entityList)
 {
  this.Pager = pager;
  this.EntityList = entityList;
 }
 public TPager Pager { get; set; }
 public TEntityList EntityList { get; set; }
 }
}

PageInfo.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
 
namespace System.Web.Mvc
{
 public class PagerInfo
 {
 public int RecordCount { get; set; }
 
 public int CurrentPageIndex { get; set; }
 
 public int PageSize { get; set; }
 }
}

使用示例:

  1. @ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<PagerQuery<PagerInfo, IList<NewsArticleInfo>>>" %> 
  2.  
  3. <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"
  4.  NewsList 
  5. </asp:Content> 
  6.  
  7. <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"
  8.  
  9.  <h2>NewsList</h2> 
  10.  
  11.  <table> 
  12.  <tr> 
  13.   <th></th> 
  14.   <th> 
  15.   NoteID 
  16.   </th> 
  17.   <th> 
  18.   Title 
  19.   </th> 
  20.   <th> 
  21.   Author 
  22.   </th> 
  23.   <th> 
  24.   Hit 
  25.   </th> 
  26.   <th> 
  27.   ReplyNum 
  28.   </th> 
  29.    
  30.  </tr> 
  31.  
  32.  <% foreach (var item in Model.EntityList) { %> 
  33.   
  34.  <tr> 
  35.   <td> 
  36.   <%= Html.ActionLink("Edit""Edit"new { /* id=item.PrimaryKey */ }) %> | 
  37.   <%= Html.ActionLink("Details""NewsDetail"new { noteID=item.NoteID })%> 
  38.   </td> 
  39.   <td> 
  40.   <%= Html.Encode(item.NoteID) %> 
  41.   </td> 
  42.   <td> 
  43.   <%= Html.Encode(item.Title) %> 
  44.   </td> 
  45.   <td> 
  46.   <%= Html.Encode(item.Author)%> 
  47.   </td> 
  48.   <td> 
  49.   <%= Html.Encode(item.Hit)%> 
  50.   </td> 
  51.   <td> 
  52.   <%= Html.Encode(item.ReplyNum)%> 
  53.   </td> 
  54.    
  55.  </tr> 
  56.   
  57.  <% } %> 
  58.  
  59.  </table> 
  60.  
  61.  <p> 
  62.  <%=Html.Pager("pager",Model.Pager.CurrentPageIndex,Model.Pager.PageSize,Model.Pager.RecordCount,PageMode.Numeric) %> 
  63.  </p> 
  64.  
  65. </asp:Content> 

 controler:

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[AcceptVerbs(HttpVerbs.Get)]
 public ActionResult NewsList(int boardID,int? page)
 {
  PagerInfo pager = new PagerInfo();
  NewsArticleInfo info = new NewsArticleInfo();
  info.NewsBoard = new NewsBoardInfo();
  info.NewsBoard.BoardID = boardID;
  pager.RecordCount = Resolve<INewsBLL>().GetArticleDataList(info, ArticleTypeEnum.Pass);
  pager.PageSize = 10;
  pager.CurrentPageIndex = (page!=null?(int)page:1);
  IList<NewsArticleInfo> result = Resolve<INewsBLL>().GetArticleDataList(pager.CurrentPageIndex, pager.PageSize, ArticleTypeEnum.Pass, info);
  PagerQuery<PagerInfo, IList<NewsArticleInfo>> query = new PagerQuery<PagerInfo, IList<NewsArticleInfo>>(pager,result);
  return View(query);
 }

源碼下載:MvcPager.rar

以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支持服務器之家。

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