DATAGRID的集中功能！！（代码页）

 
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.OleDb;
namespace ygdzwww
{
 /// <summary>
 /// WebForm1 的摘要说明。
 /// </summary>
 public class WebForm1 : System.Web.UI.Page
 {
    protected System.Web.UI.WebControls.DataGrid DataGrid1;
    protected System.Web.UI.WebControls.Label Label4;
    protected System.Web.UI.WebControls.LinkButton PageFirst;
    protected System.Web.UI.WebControls.LinkButton PageNext;
    protected System.Web.UI.WebControls.LinkButton PageLast;
    protected System.Web.UI.WebControls.LinkButton PagePre;
    protected System.Web.UI.WebControls.Button BTXianDelete;
    protected System.Web.UI.WebControls.Button BTXianSearch;
    protected System.Web.UI.WebControls.Label LBXianName;
    protected System.Web.UI.WebControls.TextBox TBXianName;
    protected System.Web.UI.WebControls.Label LBPageCount;
    protected System.Web.UI.WebControls.Button BTXianAdd;
 
    private void Page_Load(object sender, System.EventArgs e)