c# c/s 框架的分页用户控件，还有事件

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Manage
{
    public partial class UserPageControl : UserControl
    {
        public UserPageControl()
        {
            InitializeComponent();
            PageChanged = InitBut;
        }
        ;
        /// <summary>
        /// 当前页
        /// </summary>
        [Description("当前页"), Category("分页设置")]
        public int CurrentPage
        {
            get { return currentPage; }
            set { currentPage = value; }
        }
        ;//每页显示条数
        /// <summary>
        /// 每页显示条数
        /// </summary>
        [Description("每页显示条数"), Category("分页设置")]
        public int PageSize
        {
            get { return pageSize; }
            set { pageSize = value; }
        }
        /// <summary>
        /// 总的记录数
        /// </summary>
        private int recordCount;//总的记录数
        [Description("总的记录数"), Category("分页设置")]
        public int RecordCount
        {
            get { return recordCount; }
            set
            {
                recordCount = value;

            }
        }
        /// <summary>
        /// 总共页码
        /// </summary>
        public int CountPage
        { get; set; }
        public delegate void PageChangeDelegate();
        /// <summary>
        /// 当前页改变时发生的事件
        /// </summary>
        [Description("当前页改变时发生的事件"), Category("分页设置")]
        public event PageChangeDelegate PageChanged;

        /// <summary>
        /// 初始化数据
        /// </summary>
        public void InitData()
        {
            CountPage = recordCount / pageSize;
            )
            {
                CountPage = ;
                label1.Text = string.Format("共{0}条记录，每页{1}条，共{2}页/第{3}页", RecordCount, PageSize, CountPage, CurrentPage);
                InitBut();
                return;
            }

             && recordCount % pageSize != )
            {
                CountPage = CountPage + ;
                label1.Text = string.Format("共{0}条记录，每页{1}条，共{2}页/第{3}页", RecordCount, PageSize, CountPage, CurrentPage);
                InitBut();
                return;
            }
            label1.Text = string.Format("共{0}条记录，每页{1}条，共{2}页/第{3}页", RecordCount, PageSize, CountPage, CurrentPage);
            InitBut();
            return;
        }
        /// <summary>
        /// 上一页
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Prev_Click(object sender, EventArgs e)
        {
            CurrentPage--;

            InitData();
            PageChanged();
        }
        /// <summary>
        /// 下一页
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Next_Click(object sender, EventArgs e)
        {
            CurrentPage++;

            InitData();
            PageChanged();
        }
        public void InitBut()
        {

            //上一页是否可用
            )
            {
                Prev.Enabled = false;
            }
            else
            {
                Prev.Enabled = true;
            }
            //下一页是否可用
            if (CurrentPage >= CountPage)
            {
                Next.Enabled = false;
            }
            else
            {
                Next.Enabled = true;
            }

        }

    }
}

public partial class UserPageControl : UserControl     {         public UserPageControl()         {             InitializeComponent();             PageChanged = InitBut;         }         int currentPage = 1;         /// <summary>         /// 当前页         /// </summary>         [Description("当前页"), Category("分页设置")]         public int CurrentPage         {             get { return currentPage; }             set { currentPage = value; }         }         int pageSize = 10;//每页显示条数         /// <summary>         /// 每页显示条数         /// </summary>         [Description("每页显示条数"), Category("分页设置")]         public int PageSize         {             get { return pageSize; }             set { pageSize = value; }         }         /// <summary>         /// 总的记录数         /// </summary>         private int recordCount;//总的记录数         [Description("总的记录数"), Category("分页设置")]         public int RecordCount         {             get { return recordCount; }             set             {                 recordCount = value;

}         }         /// <summary>         /// 总共页码         /// </summary>         public int CountPage         { get; set; }         public delegate void PageChangeDelegate();         /// <summary>         /// 当前页改变时发生的事件         /// </summary>         [Description("当前页改变时发生的事件"), Category("分页设置")]         public event PageChangeDelegate PageChanged;

/// <summary>         /// 初始化数据         /// </summary>         public void InitData()         {             CountPage = recordCount / pageSize;             if (CountPage <= 0)             {                 CountPage = 1;             }

if (CountPage > 0 && recordCount % pageSize != 0)             {                 CountPage = CountPage + 1;             }             label1.Text = string.Format("共{0}条记录，每页{1}条，共{2}页/第{3}页", RecordCount, PageSize, CountPage, CurrentPage);             InitBut();         }         /// <summary>         /// 上一页         /// </summary>         /// <param name="sender"></param>         /// <param name="e"></param>         private void Prev_Click(object sender, EventArgs e)         {             CurrentPage--;

InitData();             PageChanged();         }         /// <summary>         /// 下一页         /// </summary>         /// <param name="sender"></param>         /// <param name="e"></param>         private void Next_Click(object sender, EventArgs e)         {             CurrentPage++;

InitData();             PageChanged();         }         public void InitBut()         {             //上一页是否可用             if (CurrentPage <= 1)             {                 Prev.Enabled = false;             }             else             {                 Prev.Enabled = true;             }             //下一页是否可用             if (CurrentPage >= CountPage)             {                 Next.Enabled = false;             }             else             {                 Next.Enabled = true;             }

}

}