Windows Form 分页 具体实现

namespace Common
{
    public partial class WinFormPager : UserControl
    {
        public event EventHandler PageChanged; //事件：控件的当前页码发生变更。 
        private int pageSize;
        private int curPage;
        private int pageCount;
        public WinFormPager()
        {
            InitializeComponent(); 
        }

        private void WinFormPager_Load(object sender, EventArgs e)
        {
        }
        /// <summary> 
        /// [属性]每页显示记录数。 
        /// </summary>
        public int PageSize
        {
            get
            {
                if (pageSize <= 0)
                {
                    pageSize = 10;
                }
                return pageSize;
            }
            set
            {
                pageSize = value;
            }
        }

        /// <summary> 
        /// 当前页数 
        /// </summary> 
        public int CurPage
        {
            get
            {
                if (curPage <= 0)
                {
                    curPage = 1;
                }
                return curPage;
            }
            set
            {
                curPage = value;
                if (PageChanged != null)
                {
                    SafeRaise.Raise(PageChanged,null);//触发当件页码变更事件。 
                }
            }
        }
        /// <summary> 
        /// [属性]总页数。 
        /// </summary> 
        public int PageCount
        {
            get
            {
                if (RecordCount > 0)
                {
                    int pageCount = RecordCount / PageSize;
                    if (RecordCount % PageSize == 0)
                    {
                      pageCount = RecordCount / PageSize;
                    }

                    else
                    {
                        pageCount = RecordCount / PageSize + 1;
                    }
                    return pageCount;
                }
                else
                {
                    return 0;
                }
            }
            set
            {
                pageCount = value;
            }
        }

        /// <summa