分享一个C#的分页类

废话不说只有代码：

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

 namespace CommonLibrary
 {
     public class PagedList<T> : List<T>
     {
         #region Properties

         public int PageIndex { get; private set; }

         public int PageSize { get; private set; }

         public int TotalCount { get; private set; }

         public int TotalPages { get; private set; }

         public bool HasPreviousPage
         {
             get { return (PageIndex > ); }
         }
         public bool HasNextPage
         {
             get { return (PageIndex +  < TotalPages); }
         }

         #endregion
        //http://www.cnblogs.com/roucheng/
         #region Constructors

         public PagedList(IQueryable<T> source, int pageIndex, int pageSize)
         {
             if (source == null || source.Count() < )
                 throw new System.ArgumentNullException("source");

             int total = source.Count();
             this.TotalCount = total;
             this.TotalPages = total / pageSize;

             if (total % pageSize > )
                 TotalPages++;

             this.PageSize = pageSize;
             this.PageIndex = pageIndex;
             this.AddRange(source.Skip(pageIndex * pageSize).Take(pageSize).ToList());
         }

         public PagedList(IList<T> source, int pageIndex, int pageSize)
         {
             if (source == null || source.Count() < )
                 throw new System.ArgumentNullException("source");

             TotalCount = source.Count();
             TotalPages = TotalCount / pageSize;

             if (TotalCount % pageSize > )
                 TotalPages++;

             this.PageSize = pageSize;
             this.PageIndex = pageIndex;
             this.AddRange(source.Skip(pageIndex * pageSize).Take(pageSize).ToList());
         }

         public PagedList(IEnumerable<T> source, int pageIndex, int pageSize, int totalCount)
         {
             if (source == null || source.Count() < )
                 throw new System.ArgumentNullException("source");

             TotalCount = totalCount;
             TotalPages = TotalCount / pageSize;

             if (TotalCount % pageSize > )
                 TotalPages++;

             this.PageSize = pageSize;
             this.PageIndex = pageIndex;
             this.AddRange(source);
         }

         #endregion
     }
 }