cyf
310 lines
11 KiB
C#
310 lines
11 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Web;
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using System.Text.RegularExpressions;
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using Zhaizj.Framework.ORM;
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using Zhaizj.Framework.Web.Mvc;
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using Zhaizj.Framework.Web;
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namespace Zhaizj.Framework {
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/// <summary>
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/// 封装了 ORM 分页查询的结果集
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/// </summary>
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/// <typeparam name="T">数据类型</typeparam>
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[Serializable]
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public class DataPage<T> : IPageList {
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public DataPage() {
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}
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public DataPage( IPageList list ) {
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this.Current = list.Current;
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this.Size = list.Size;
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this.PageCount = list.PageCount;
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this.PageBar = list.PageBar;
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this.RecordCount = list.RecordCount;
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this.Results = db.getResults<T>( list.Results );
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}
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public void CopyStats( IPageList list ) {
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this.Current = list.Current;
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this.Size = list.Size;
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this.PageCount = list.PageCount;
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this.PageBar = list.PageBar;
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this.RecordCount = list.RecordCount;
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}
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private int _current;
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private String _pageBar;
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private int _pageCount;
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private int _recordCount;
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private List<T> _results;
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private int _size;
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/// <summary>
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/// 当前页码
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/// </summary>
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public int Current {
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get { return _current; }
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set { _current = value; }
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}
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/// <summary>
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/// 每页数据量
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/// </summary>
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public int Size {
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get { return _size; }
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set { _size = value; }
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}
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/// <summary>
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/// 风转过的 html 分页栏(也可以自定义)
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/// </summary>
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public String PageBar {
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get { return _pageBar; }
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set { _pageBar = value; }
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}
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/// <summary>
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/// 总页码
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/// </summary>
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public int PageCount {
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get { return _pageCount; }
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set { _pageCount = value; }
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}
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/// <summary>
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/// 总记录数
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/// </summary>
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public int RecordCount {
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get { return _recordCount; }
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set { _recordCount = value; }
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}
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/// <summary>
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/// 查询结果：对象的列表
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/// </summary>
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public List<T> Results {
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get { return _results; }
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set { _results = value; }
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}
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/// <summary>
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/// 返回空的分页结果集
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/// </summary>
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/// <returns></returns>
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public static DataPage<T> GetEmpty() {
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DataPage<T> p = new DataPage<T>();
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p.Results = new List<T>();
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p.Current = 1;
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p.RecordCount = 0;
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return p;
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}
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System.Collections.IList IPageList.Results {
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get { return new System.Collections.ArrayList(); }
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set {
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}
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}
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public String GetRecentPage( String recentLink, String archiveLink, int recentPageCount, Boolean isHtml ) {
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return GetRecentPage( recentLink, archiveLink, recentPageCount, recentPageCount, isHtml );
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}
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/// <summary>
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/// 最近数据列表的分页栏
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/// </summary>
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/// <param name="recentLink">最近数据列表网址(不带页码)</param>
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/// <param name="archiveLink">存档数据列表网址(不带页码)</param>
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/// <param name="recentPageCount">最近数据列表需要展示的页数</param>
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/// <returns></returns>
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public String GetRecentPage( String recentLink, String archiveLink, int recentPageCount ) {
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return GetRecentPage( recentLink, archiveLink, recentPageCount, recentPageCount );
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}
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/// <summary>
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/// 最近数据列表的分页栏
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/// </summary>
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/// <param name="recentLink">最近数据列表网址(不带页码)</param>
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/// <param name="archiveLink">存档数据列表网址(不带页码)</param>
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/// <param name="recentPageCount">最近数据列表需要展示的页数</param>
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/// <param name="pageWidth">分页栏宽度</param>
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/// <returns></returns>
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public String GetRecentPage( String recentLink, String archiveLink, int recentPageCount, int pageWidth ) {
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return GetRecentPage( recentLink, archiveLink, recentPageCount, pageWidth, false );
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}
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/// <summary>
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/// 最近数据列表的分页栏
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/// </summary>
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/// <param name="recentLink">最近数据列表网址(不带页码)</param>
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/// <param name="archiveLink">存档数据列表网址(不带页码)</param>
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/// <param name="recentPageCount">最近数据列表需要展示的页数</param>
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/// <param name="pageWidth">分页栏宽度</param>
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/// <param name="isHtml">是否html制作请求</param>
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/// <returns></returns>
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public String GetRecentPage( String recentLink, String archiveLink, int recentPageCount, int pageWidth, Boolean isHtml ) {
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StringBuilder sb = new StringBuilder();
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sb.Append( "<div class=\"turnpage\">" );
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// prev
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if (this.Current > 1) {
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sb.AppendFormat( "<a href=\"{0}\"><{1}</a> ", appendPage( recentLink, this.Current - 1, isHtml ), lang.get( "prevPage" ) );
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}
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// page number
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int startNo;
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int pp = this.Current / pageWidth;
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if (this.Current % pageWidth == 0) {
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startNo = (pp - 1) * pageWidth + 1;
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}
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else {
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startNo = pp * pageWidth + 1;
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}
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if (startNo > this.PageCount) startNo = 1;
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int endNo = startNo + pageWidth - 1;
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if (endNo >= this.PageCount) endNo = this.PageCount;
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if (endNo > recentPageCount) endNo = recentPageCount;
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for (int i = startNo; i <= endNo; i++) {
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String pstyle = this.Current == i ? "currentPageNo" : "pageNo";
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sb.AppendFormat( "<a href=\"{0}\" class=\"{1}\">{2}</a> ", appendPage( recentLink, i, isHtml ), pstyle, i );
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}
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// next
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if (this.Current + 1 > this.PageCount) {
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}
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else if (this.Current + 1 > recentPageCount) {
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int nextPage = this.PageCount - recentPageCount;
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sb.AppendFormat( "<a href=\"{0}\">{1}></a> ", appendPage( archiveLink, nextPage, isHtml ), lang.get( "nextPage" ) );
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}
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else {
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sb.AppendFormat( "<a href=\"{0}\">{1}></a> ", appendPage( recentLink, this.Current + 1, isHtml ), lang.get( "nextPage" ) );
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}
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sb.AppendFormat( "<span class=\"pageCount\">" + lang.get( "pageCount" ) + "</span>", this.PageCount );
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sb.Append( "</div>" );
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return sb.ToString();
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}
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private String appendPage( String url, int pageNumber, Boolean isHtml ) {
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if (isHtml) {
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return PageHelper.AppendHtmlNo( url, pageNumber );
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}
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else {
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return PageHelper.AppendNo( url, pageNumber );
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}
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}
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/// <summary>
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/// 存档数据列表的分页栏
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/// </summary>
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/// <param name="recentLink">最近数据列表网址(不带页码)</param>
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/// <param name="archiveLink">存档数据列表网址(不带页码)</param>
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/// <param name="recentPageCount">最近数据列表需要展示的页数</param>
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/// <returns></returns>
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public String GetArchivePage( String recentLink, String archiveLink, int recentPageCount ) {
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return GetArchivePage( recentLink, archiveLink, recentPageCount, false );
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}
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/// <summary>
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/// 存档数据列表的分页栏
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/// </summary>
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/// <param name="recentLink">最近数据列表网址(不带页码)</param>
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/// <param name="archiveLink">存档数据列表网址(不带页码)</param>
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/// <param name="recentPageCount">最近数据列表需要展示的页数</param>
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/// <param name="isHtml">是否html制作请求</param>
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/// <returns></returns>
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public String GetArchivePage( String recentLink, String archiveLink, int recentPageCount, Boolean isHtml ) {
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StringBuilder sb = new StringBuilder();
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sb.Append( "<div class=\"turnpage\">" );
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sb.AppendFormat( "<a href=\"{0}\">«{1}</a>", recentLink, lang.get( "firstPage" ) );
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sb.Append( "<span class=\"\"> </span>" );
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if (this.PageCount - this.Current <= recentPageCount) {
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int prevPage = this.PageCount - this.Current;
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sb.AppendFormat( "<a href=\"{0}\"><{1}</a>", appendPage( recentLink, prevPage, isHtml ), lang.get( "prevPage" ) );
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sb.Append( "<span class=\"\"> </span>" );
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}
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else {
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sb.AppendFormat( "<a href=\"{0}\"><{1}</a>", appendPage( archiveLink, this.Current + 1, isHtml ), lang.get( "prevPage" ) );
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sb.Append( "<span class=\"\"> </span>" );
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}
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if (this.Current > 1) {
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int nextPage = this.Current - 1;
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if (nextPage > 1) {
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sb.AppendFormat( "<a href=\"{0}\">{1}></a>", appendPage( archiveLink, this.Current - 1, isHtml ), lang.get( "nextPage" ) );
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sb.Append( "<span class=\"\"> </span>" );
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sb.AppendFormat( "<a href=\"{0}\">{1}»</a>", appendPage( archiveLink, 1, isHtml ), lang.get( "lastPage" ) );
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}
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else {
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sb.AppendFormat( "<a href=\"{0}\">{1}></a>", appendPage( archiveLink, this.Current - 1, isHtml ), lang.get( "nextPage" ) );
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}
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}
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sb.Append( "</div>" );
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return sb.ToString();
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}
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public static DataPage<T> GetPage( List<T> list, int pageSize ) {
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ObjectPage op = new ObjectPage();
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if (pageSize <= 0) pageSize = 20;
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op.setSize( pageSize );
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op.RecordCount = list.Count;
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// 计算页数
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op.computePageCount();
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// 矫正当前页码
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int currentPageNumber = CurrentRequest.getCurrentPage();
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op.setCurrent( currentPageNumber );
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op.resetCurrent();
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currentPageNumber = op.getCurrent();
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// 得到结果集
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List<T> results = new List<T>();
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int start = (currentPageNumber - 1) * pageSize;
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int count = 1;
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for (int i = start; i < list.Count; i++) {
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if (count > pageSize) break;
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results.Add( list[i] );
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count++;
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}
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// 填充分页数据
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DataPage<T> page = new DataPage<T>();
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page.Results = results;
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page.Current = currentPageNumber;
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page.Size = pageSize;
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page.RecordCount = list.Count;
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page.PageCount = op.PageCount;
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page.PageBar = op.PageBar;
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return page;
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}
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}
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}
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