Conris.Controls.MVC/MVCPager/PagedList.cs

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using System;
using System.Collections.Generic;

namespace Conris.Controls.MVC
{
    public class PagedList<T> : List<T>
    {
        public PagedList(IList<T> items, int pageIndex, int pageSize)
        {
            PageSize = pageSize;
            TotalItemCount = items.Count;
            TotalPageCount = (int)Math.Ceiling(TotalItemCount / (double)PageSize);
            CurrentPageIndex = pageIndex;
            StartRecordIndex = (CurrentPageIndex - 1) * PageSize + 1;
            EndRecordIndex = TotalItemCount > pageIndex * pageSize ? pageIndex * pageSize : TotalItemCount;
            for (int i = StartRecordIndex - 1; i < EndRecordIndex; i++)
            {
                Add(items[i]);
            }
        }

        public PagedList(IEnumerable<T> items, int pageIndex, int pageSize, int totalItemCount, bool flag = false)
        {
            AddRange(items);
            TotalItemCount = totalItemCount;
            TotalPageCount = (int)Math.Ceiling(totalItemCount / (double)pageSize);
            CurrentPageIndex = pageIndex;
            PageSize = pageSize;
            if (flag)
                StartRecordIndex = 1;
            else
                StartRecordIndex = (pageIndex - 1) * pageSize + 1;
            EndRecordIndex = TotalItemCount > pageIndex * pageSize ? pageIndex * pageSize : totalItemCount;
        }

        public int CurrentPageIndex { get; set; }
        public int PageSize { get; set; }
        public int TotalItemCount { get; set; }
        public int TotalPageCount { get; private set; }
        public int StartRecordIndex { get; private set; }
        public int EndRecordIndex { get; private set; }
    }
}