说明：

1）具体调用请关注 看DevExpress 用户控件 分页（下）

datanavi_ButtonClick 是DataNavigator的ButtonClikc事件

视图设计器：

分页用户控件后台代码如下：

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;
using DevExpress.XtraEditors;namespace CYSoft.TS.UI.StudentInfo
{public partial class PageCtrl : DevExpress.XtraEditors.XtraUserControl{/// <summary>/// 自定义事件 当前页改变事件/// </summary>public event EventHandler CurrentPageChange;#region 定义分页 字段和属性private int m_recordCount = 0;/// <summary>/// 数据行总数/// </summary>public int recordCount{get { return m_recordCount; }set{SetFormCtrlEnable();this.m_recordCount = value;}}private int m_pageSize = 20;/// <summary>/// 每页显示的数据行数/// </summary>public int pageSize{get { return m_pageSize; }set { this.m_pageSize = value; }}private int m_pageIndex = 1;/// <summary>/// 当前页/// </summary>public int pageIndex{get { return m_pageIndex; }set { this.m_pageIndex = value; }}private int m_pageCount = 0;/// <summary>/// 总页数/// </summary>public int pageCount{get{if (m_pageSize != 0){m_pageCount = GetPageCount();}return m_pageCount;}}/// <summary>/// 获取总页数/// </summary>/// <returns></returns>private int GetPageCount(){if (pageSize == 0){return 0;}int num = 1;if (recordCount % pageSize == 0){num = recordCount / pageSize;}else{num = recordCount / pageSize + 1;}return num;}#endregionpublic PageCtrl(){InitializeComponent();}/// <summary>/// 设置DataNavigator按钮全部可用/// </summary>private void SetFormCtrlEnable(){this.datanavi.Buttons.CustomButtons[0].Enabled = true;this.datanavi.Buttons.CustomButtons[1].Enabled = true;this.datanavi.Buttons.CustomButtons[2].Enabled = true;this.datanavi.Buttons.CustomButtons[3].Enabled = true;}//DataNavigator 点击      private void datanavi_ButtonClick(object sender, NavigatorButtonClickEventArgs e){ShowEvent("ButtonClick", e.Button);}#region 第一页、上一页、下一页、最后一页/// <summary>/// 第一页、上一页、下一页、最后一页 点击事件/// </summary>/// <param name="eventString"></param>/// <param name="nbb"></param>void ShowEvent(string eventString, NavigatorButtonBase nbb){switch (nbb.Tag.ToString()){case "First":First();break;case "PrePage":PrePage();break;case "NextPage":NextPage();break;case "Last":Last();break;default:break;}DrawControl(true);}private void First(){m_pageIndex = 1;}private void PrePage(){m_pageIndex = Math.Max(1, m_pageIndex - 1);}private void NextPage(){m_pageIndex = Math.Min(pageCount, m_pageIndex + 1);}private void Last(){m_pageIndex = pageCount;}#endregion/// <summary>/// 设置DataNavigator按钮是否可用/// </summary>/// <param name="callEvent">是否当前页</param>private void DrawControl(bool callEvent){if (callEvent && CurrentPageChange != null){//当前页事件CurrentPageChange(this, null);}//设置按钮全部可用this.SetFormCtrlEnable();//只有一页if (recordCount <= 1){this.datanavi.Buttons.CustomButtons[0].Enabled = false;this.datanavi.Buttons.CustomButtons[1].Enabled = false;this.datanavi.Buttons.CustomButtons[2].Enabled = false;this.datanavi.Buttons.CustomButtons[3].Enabled = false;}//第一页else if (pageIndex <= 1){this.datanavi.Buttons.CustomButtons[0].Enabled = false;this.datanavi.Buttons.CustomButtons[1].Enabled = false;}//最后一页else if (pageIndex >= pageCount){this.datanavi.Buttons.CustomButtons[2].Enabled = false;this.datanavi.Buttons.CustomButtons[3].Enabled = false;}}/// <summary>/// 加载LableControl/// </summary>private void ShowLableInfo(){if (!this.Created){return;}this.BeginInvoke((MethodInvoker)delegate{try{if (!DesignMode){this.labelControl1.Text = "总行数：" + recordCount + "      当前页：" + pageIndex + "/" + pageCount + "    ";}}catch { }});}/// <summary>/// 分页控件加载/// </summary>/// <param name="count">数据总行数</param>private void DrawControl(int count){m_recordCount = count;//设置DataNavigatorDrawControl(false);//设置LabControlShowLableInfo();}/// <summary>/// 设置分页数据控件/// </summary>/// <param name="currentPageIndex">当前页</param>/// <param name="pageSize2">每页显示行数</param>/// <param name="recordTotal">总行数</param>public void SetPageCtrl(int currentPageIndex, int pageSize2, int recordTotal){pageIndex = currentPageIndex;recordCount = recordTotal;pageSize = pageSize2;DrawControl(recordTotal);}}
}