ASP.NET MVC分页类

 public class PagerModel
    {
        private PagerInfo _PagerInfo = new PagerInfo();
        public PagerInfo PagerInfo
        {
            get { return _PagerInfo; }
            set { _PagerInfo = value; }
        }
    }
    public class PagerInfo
    {
        public PagerInfo()
        {
            this.PageSize = 10;
            this.PageIndex = 1;
            //this.RecordCount = 0;
        }
        public int PageIndex { get; set; }
        public int PageSize { get; set; }
        public int RecordCount { get; set; }
        public int BeforeCount
        {
            get
            {
                return (this.PageIndex - 1) * this.PageSize;
            }
        }
        public void SetRecordCount(int nRecordCount)
        {
            this.RecordCount = nRecordCount;
        }

    }
    public class PagerPost
    {
        public PagerPost()
        { }
        //public bool IsNew { get; set; }
        //public PagerPost(int iPageIndex,)
        private int _RecordCount = 0;
        /// <summary>
        /// 记录数
        /// </summary>
        public int RecordCount
        {
            get
            {
                return _RecordCount;
            }
            set
            {
                if (value < 0) throw new Exception("记录数不能为负数");
                _RecordCount = value;
                CountPageCount();//计算页数
            }
        }

        private int _PageSize = 10;
        /// <summary>
        /// 页大小
        /// </summary>
        public int PageSize
        {
            get
            {
                return _PageSize;
            }
            set
            {
                if (value < 1) throw new Exception("页大小不能小于一");
                _PageSize = value;
                CountPageCount();//计算页数
            }
        }

        private int _PageIndex = 1;
        /// <summary>
        /// 页码
        /// </summary>
        public int PageIndex
        {
            get
            {
                return _PageIndex;
            }
            set
            {
                if (value < 0) throw new Exception("页码不能为负数");
                if (_PageCount > 0)
                    if (value > _PageCount)
                        _PageIndex = 1;
                    else
                        _PageIndex = value;
            }
        }

        /// <summary>
        /// 页数
        /// </summary>
        private int _PageCount = 0;

        /// <summary>
        /// 起始显示页数
        /// </summary>
        private int _DefaultViewPageCount = 10;
        /// <summary>
        /// 最大显示页数
        /// </summary>
        private int _MaximumViewPageCount = 11;

        /// <summary>
        /// 计算页数
        /// </summary>
        private void CountPageCount()
        {
            _PageCount = _RecordCount / _PageSize + (_RecordCount % _PageSize == 0 ? 0 : 1);
        }

        public string RenderHtml(int iPageIndex)
        {
            this.PageIndex = iPageIndex;
            this.RecordCount = _RecordCount;
            return RenderHtml();
        }

        public string RenderHtml()
        {
            //没有记录时不输出
            //if (_PageCount <2) return "";

            StringBuilder stbResult = new StringBuilder();

            //stbResult.Append("\n<div id='pager'>");
            //stbResult.Append("\n<script type='text/javascript'>");
            //stbResult.Append("\nfunction PagerPost(iPageIndex){var PageIndex=document.createElement('input');PageIndex.name='PagerInfo.PageIndex';PageIndex.type='hidden';PageIndex.value=iPageIndex;document.forms[0].appendChild(PageIndex);document.forms[0].submit();}");
            //stbResult.Append("\n</script>");

            stbResult.Append("\n<div id='pager' style='background-color:#E3EFFB;'>");
            stbResult.Append("\n<script type='text/javascript'>");
            //新增RecordCount 记录数用于判别是否新查询
            // stbResult.Append("\nvar IsNew=document.createElement('input');IsNew.name='PagerInfo.IsNew';IsNew.id='HhIsNew';IsNew.type='hidden';IsNew.value='False';document.forms[0].appendChild(IsNew);");
            stbResult.Append("\nvar RecordCount=document.createElement('input');RecordCount.name='PagerInfo.RecordCount';RecordCount.type='hidden';RecordCount.value=" + _RecordCount + ";document.forms[0].appendChild(RecordCount);");
            stbResult.Append("\nvar PageSize=document.createElement('input');PageSize.name='PagerInfo.PageSize';PageSize.type='hidden';PageSize.value=" + _PageSize + ";document.forms[0].appendChild(PageSize);");
            stbResult.Append("\nvar PageIndex=document.createElement('input');PageIndex.name='PagerInfo.PageIndex';PageIndex.type='hidden';PageIndex.value=" + _PageIndex + ";PageIndex.id='hidPageIndex';document.forms[0].appendChild(PageIndex);");
            stbResult.Append("\ndocument.forms[0].onsubmit=function(){document.getElementById('hidPageIndex').value=1;return true;}");
            stbResult.Append("\nfunction PagerPost(iPageIndex){document.getElementById('hidPageIndex').value=iPageIndex;document.forms[0].submit();}");
            //stbResult.Append("\nfunction PagerPost(iPageIndex){var PageSize=document.createElement('input');PageSize.name='PagerInfo.PageSize';PageSize.type='hidden';PageSize.value=" + _PageSize + ";document.forms[0].appendChild(PageSize);var PageIndex=document.createElement('input');PageIndex.name='PagerInfo.PageIndex';PageIndex.type='hidden';PageIndex.value=iPageIndex;document.forms[0].appendChild(PageIndex);document.forms[0].submit();}");
            stbResult.Append("\n</script>");

            //首页,上一页
            if (_PageIndex > 1)
            {
                stbResult.Append(string.Format("\n<a href='javascript:PagerPost({0})'>首页</a>", 1));
                stbResult.Append(string.Format("\n<a href='javascript:PagerPost({0})'>上一页</a>", (_PageIndex - 1)));
            }
            else
            {
                stbResult.Append("\n<a style='color:Gray;text-decoration:none;'>首页</a>");
                stbResult.Append("\n<a style='color:Gray;text-decoration:none;'>上一页</a>");
            }

            ////数字页 google式分页
            //int iBegIndex = 1;
            //int iEndIndex = _DefaultViewPageCount;
            //if (_PageIndex >= _DefaultViewPageCount)
            //{
            //    iEndIndex = _PageIndex + _DefaultViewPageCount - 1;
            //}
            //if (iEndIndex > _PageCount)
            //{
            //    iEndIndex = _PageCount;
            //}

            //if (iEndIndex > _MaximumViewPageCount)
            //{
            //    iBegIndex += _PageIndex - _DefaultViewPageCount - 1;
            //}

            //固定式10页
            int iBegIndex = 1;
            if (_PageIndex / _DefaultViewPageCount > 0)
            {
                if (_PageIndex % _DefaultViewPageCount == 0)
                {
                    iBegIndex = (_PageIndex / _DefaultViewPageCount - 1) * _DefaultViewPageCount + 1;
                }
                else
                {
                    iBegIndex = _PageIndex / _DefaultViewPageCount * _DefaultViewPageCount + 1;
                }
            }
            int iEndIndex = iBegIndex + _DefaultViewPageCount - 1;
            if (iEndIndex > _PageCount)
            {
                iEndIndex = _PageCount;
            }

            for (int i = iBegIndex; i <= iEndIndex; i++)
            {
                if (i == _PageIndex)
                {
                    stbResult.Append(string.Format("\n<a style='color:Gray;text-decoration:none;'>{0}</a>", i));
                }
                else
                {
                    stbResult.Append(string.Format("\n<a href='javascript:PagerPost({0})'>{1}</a>", i, i));
                }
            }

            //下一页,尾页
            if (_PageIndex < _PageCount)
            {
                stbResult.Append(string.Format("\n<a href='javascript:PagerPost({0})'>下一页</a>", (_PageIndex + 1)));
                stbResult.Append(string.Format("\n<a href='javascript:PagerPost({0})'>尾页</a>", _PageCount));
            }
            else
            {
                stbResult.Append("\n<a style='color:Gray;text-decoration:none;'>下一页</a>");
                stbResult.Append("\n<a style='color:Gray;text-decoration:none;'>尾页</a>");
            }

            //总页
            stbResult.Append(string.Format("\n{0}/{1}<span>共</span>{2}<span>条</span>", _PageIndex, _PageCount, _RecordCount));

            stbResult.Append("\n</div>");
            return stbResult.ToString();
        }
    }