C#DataGridView 实现 分页浏览

 using System;

    
 using System.Collections.Generic;
    
 using System.ComponentModel;
    
 using System.Data;
    
 using System.Drawing;
    
 using System.Text;
    
 using System.Windows.Forms;
    
 using System.Data.SqlClient;
    
  
    
 namespace dgvCategories
    
 {
    
     public partial class Form1 : Form
    
     {
    
     int _iPageSize = 0;       //每页显示行数
    
     int _iTotalRecords = 0;    //总记录数
    
     int _iPageCount = 0;      //页数＝总记录数/每页显示行数
    
     int _iPageCurrent = 0;    //当前页号
    
     int _iCurrent = 0;        //当前记录行
    
     DataSet _ds = new