本人寫的一個(gè)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(shù)字分頁的綜合)。
下面是分頁效果:
分頁代碼:
PagerHelper.cs
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(dāng)前頁</param> /// <param name="pageSize">分頁尺寸</param> /// <param name="recordCount">記錄總數(shù)</param> /// <param name="htmlAttributes">分頁頭標(biāo)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(dāng)前頁</param> /// <param name="pageSize">分頁尺寸</param> /// <param name="recordCount">記錄總數(shù)</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(dāng)前頁</param> /// <param name="pageSize">分頁尺寸</param> /// <param name="recordCount">記錄總數(shù)</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(dāng)前頁</param> /// <param name="pageSize">分頁尺寸</param> /// <param name="recordCount">記錄總數(shù)</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(dāng)前頁</param> /// <param name="pageSize">分頁尺寸</param> /// <param name="recordCount">記錄總數(shù)</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(dāng)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(shù)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(shù)字分頁 /// </summary> Numeric }}
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