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一個支持普通分頁和綜合分頁的MVC分頁Helper

2024-09-06 20:44:36
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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:

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 }}             
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