【转载】MVC分页控件之二，为IQueryable定义一个扩展方法，直接反回PagedList<T>结果集

 ASP.NET MVC3 基础教程 – Web Pages 1.0 linFen 2011-05-03 15:21 阅读:232 评论:0  

Razor引擎学习：RenderBody，RenderPage和RenderSection linFen 2011-04-20 09:52 阅读:783 评论:0  

为ASP.NET MVC 2.0添加Razor模板引擎 (on .NET4) linFen 2011-04-20 09:46 阅读:153 评论:0  

MVC中使用entity framework(EF)出现“必须添加对程序集“System.Data.Entity”解决方法 linFen 2011-04-19 14:20 阅读:137 评论:0  

ASP.NET MVC的全球化方案 (转) linFen 2010-11-02 12:53 阅读:98 评论:0  

将ASP.NET MVC 2.0 部署在IIS6和IIS7上的教程 linFen 2010-03-04 22:14 阅读:179 评论:0  

Asp.net MVC 示例项目"Suteki.Shop"分析之---NVelocity模版引擎 (转) linFen 2009-06-03 08:45 阅读:79 评论:0  

【翻译】ASP.NET MVC中你必须知道的13个扩展点 (转) linFen 2009-06-01 12:55 阅读:207 评论:0  

Asp.net MVC生命周期(转) linFen 2009-06-01 09:07 阅读:95 评论:0  

ASP.NET MVC + jQuery + Newtonsoft.Json 快乐的AJAX linFen 2009-04-14 11:22 阅读:2720 评论:0  

让ASP.NET MVC页面返回不同类型的内容 linFen 2009-02-11 13:58 阅读:92 评论:0  

ASP.NET MVC 1.0 RC 版发布了(转) linFen 2009-02-11 11:37 阅读:68 评论:0  

Asp.Net MVC:基于cookie的用户自选视图引擎实现 linFen 2009-02-11 09:44 阅读:171 评论:2  

ASP.NET MVC: 用db4o来做TempDataProvider linFen 2009-02-11 09:41 阅读:152 评论:0  

ASP.NET MVC URL Routing 学习 linFen 2009-02-11 09:27 阅读:135 评论:0  

ASP.NET MVC案例教程（基于ASP.NET MVC beta）——第六篇：拦截器 linFen 2009-02-11 09:15 阅读:74 评论:0  

ASP.NET MVC案例教程（基于ASP.NET MVC beta）——第五篇：MVC整合Ajax linFen 2009-02-11 09:12 阅读:153 评论:0  

ASP.NET MVC案例教程（基于ASP.NET MVC beta）——第四篇：传递表单数据 linFen 2009-02-11 09:09 阅读:210 评论:0  

ASP.NET MVC案例教程（基于ASP.NET MVC beta）——第三篇：ASP.NET MVC全局观 linFen 2009-02-11 09:06 阅读:76 评论:0  

ASP.NET MVC案例教程（基于ASP.NET MVC beta） linFen 2009-02-11 09:03 阅读:95 评论:0  

ASP.NET MVC案例教程（一） linFen 2009-02-11 09:01 阅读:103 评论:0  

Using MVC Pattern in Web Interactions linFen 2008-07-05 10:37 阅读:2391 评论:0  

namespace Entity
{
    public interface IPagedList
    {
        /// <summary>
        /// 记录数
        /// </summary>
        int TotalCount { get; set; }
        /// <summary>
        /// 页数
        /// </summary>
        int TotalPages { get; set; }
        /// <summary>
        /// 当前页
        /// </summary>
        int PageIndex { get; set; }
        /// <summary>
        /// 页面大小
        /// </summary>
        int PageSize { get; set; }
        /// <summary>
        /// 是否上一页
        /// </summary>
        bool IsPreviousPage { get; }
        /// <summary>
        /// 是否下一页
        /// </summary>
        bool IsNextPage { get; }
    }
    /// <summary>
    /// 分页通用类
    /// </summary>
    /// <typeparam name="T"></typeparam>
    public class PagedList<T> : List<T>, IPagedList
    {
        /// <summary>
        /// 数据源为IQueryable的范型
        /// </summary>
        /// <param name="source">数据源</param>
        /// <param name="index">当前页</param>
        /// <param name="pageSize">每页显示多少条记录</param>
        public PagedList(IQueryable<T> source, int index, int pageSize)
        {
            if (source != null) //判断传过来的实体集是否为空
            {
                int total = source.Count();
                this.TotalCount = total;
                this.TotalPages = total / pageSize;

                if (total % pageSize > 0)
                    TotalPages++;

                this.PageSize = pageSize;
                if (index > this.TotalPages)
                {
                    index = this.TotalPages;
                }
                if (index < 1)
                {
                    index = 1;
                }
                this.PageIndex = index;
                this.AddRange(source.Skip((index - 1) * pageSize).Take(pageSize).ToList()); //Skip是跳到第几页，Take返回多少条
            }
        }

        /// <summary>
        /// 总页数
        /// </summary>
        public int TotalPages { get; set; }
        /// <summary>
        /// 总记录数
        /// </summary>
        public int TotalCount { get; set; }
        /// <summary>
        /// 当前页
        /// </summary>
        public int PageIndex { get; set; }
        /// <summary>
        /// 每页显示多少条记录
        /// </summary>
        public int PageSize { get; set; }
        /// <summary>
        /// 是否有上一页
        /// </summary>
        public bool IsPreviousPage { get { return (PageIndex > 0); } }
        /// <summary>
        /// 是否有下一页
        /// </summary>
        public bool IsNextPage { get { return (PageIndex * PageSize) <= TotalCount; } }

        private NameValueCollection _AddParameters = new NameValueCollection();
        /// <summary>
        /// 分页参数
        /// </summary>
        public NameValueCollection AddParameters
        {
            get { return _AddParameters; }
            set { _AddParameters = value; }
        }

    }

    /// <summary>
    /// PagedList扩展类
    /// </summary>
    public static class ExtendPagedList
    {
        /// <summary>
        ///  返回PagedList<T>类型的IQueryable的扩展方法
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="linq"></param>
        /// <param name="pageIndex"></param>
        /// <param name="pageSize"></param>
        /// <returns></returns>
        public static PagedList<T> ToPagedList<T>(this IQueryable<T> linq, int pageIndex, int pageSize)
        {
            return new PagedList<T>(linq, pageIndex, pageSize);
        }
    }
}