【C#公共帮助类】分页逻辑处理类

分页逻辑处理类 PageCollection.cs

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

 namespace Common
 {
     /// <summary>
     /// 分页逻辑处理类
     /// </summary>
     public class PageCollection
     {
         /// <summary>
         /// 总页数
         /// </summary>
         public int TotalPages { get; set; }
         /// <summary>
         /// 当前页面
         /// </summary>
         public int CurrentPage { get; set; }
         /// <summary>
         /// 每页的记录数
         /// </summary>
         public int OnePageSize { get; set; }
         /// <summary>
         /// 总记录数
         /// </summary>
         public long TotalRows { get; set; }
         /// <summary>
         /// 排序
         /// </summary>
         public string OrderBy { get; set; }

         /// <summary>
         /// 构造无参默认为最大数
         /// </summary>
         public PageCollection()
         {
             this.CurrentPage = ;
             this.OnePageSize = ;//默认最大行数20条
         }
     }
     /// <summary>
     /// 分页逻辑处理类 linq to entites
     /// </summary>
     public class PageInfo<TEntity> where TEntity : class
     {
         public PageInfo(int index, int pageSize, int count, List<TEntity> list,string url="")
         {
             Index = index;
             PageSize = pageSize;
             Count = count;
             List = list;
             Url = url;
             //计算数据条数从开始到结束的值
             if (count == )
             {
                 BeginPage = ;
                 EndPage = ;
             }
             else
             {
                 int maxpage = count / pageSize;

                 if (count % pageSize > )
                 {
                     maxpage++;
                 }
                 if (index >= maxpage)
                 {
                     index = maxpage;

                     BeginPage = pageSize * index - pageSize + ;
                     EndPage = count;
                 }
                 else
                 {
                     BeginPage = pageSize * index - pageSize + ;
                     EndPage = pageSize * index;
                 }
             }
         }

         public int Index { get; private set; }
         public int PageSize { get; private set; }
         public int Count { get; private set; }
         public List<TEntity> List { get; set; }
         public string Url { get; set; }
         public int BeginPage { get; private set; }
         public int EndPage { get; private set; }
     }

     /// <summary>
     /// 分页逻辑处理类 dynamic
     /// </summary>
     public class PageInfo
     {
         public PageInfo(int index, int pageSize, int count, dynamic list, string url = "")
         {
             Index = index;
             PageSize = pageSize;
             Count = count;
             List = list;
             Url = url;
             //计算数据条数从开始到结束的值
             if (count == )
             {
                 BeginPage = ;
                 EndPage = ;
             }
             else
             {
                 int maxpage = count / pageSize;

                 if (count % pageSize > )
                 {
                     maxpage++;
                 }
                 if (index >= maxpage)
                 {
                     index = maxpage;

                     BeginPage = pageSize * index - pageSize + ;
                     EndPage = count;
                 }
                 else
                 {
                     BeginPage = pageSize * index - pageSize + ;
                     EndPage = pageSize * index;
                 }
             }
         }

         public int Index { get; private set; }
         public int PageSize { get; private set; }
         public int Count { get; private set; }
         public dynamic List { get; private set; }
         public string Url { get; set; }
         public int BeginPage { get; private set; }
         public int EndPage { get; private set; }
     }

     /// <summary>
     /// Eazyui分页处理逻辑类
     /// </summary>
     public class PageEazyUi
     {
         public PageEazyUi(int _page, int _pagesize, int _total, object _rows)
         {
             page = _page;
             pagesize = _pagesize;
             total = _total;
             rows = _rows;
         }

         public int page { get; private set; }
         public int pagesize { get; private set; }
         public int total { get; private set; }
         public object rows { get; private set; }
     }
 }