菜鸟的问题.各位大侠帮帮忙?解决马上结贴.

[lichenlove]

using System;
using System.Data.OleDb;
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;

namespace WebApplication3
{
/// <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.DataGrid DataGrid2;
protected System.Web.UI.WebControls.DataGrid DataGrid3;
protected System.Web.UI.WebControls.DataGrid DataGrid4;

private void Page_Load(object sender, System.EventArgs e)
{
String connectionString;
String queryString;
DataSet data = new DataSet();
OleDbConnection dbConnection;
OleDbDataAdapter dataAdapter;

connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;"+"Data Source = E:\\学习\\ASP.NET\\Northwind.mdb";
queryString = "SELECT FirstName,LastName FROM Employees";

dbConnection = new OleDbConnection(connectionString);
dataAdapter = new OleDbDataAdapter(queryString,connectionString);

dataAdapter.Fill(data,"Employees");

DataGrid1.DataSource = data;
DataGrid1.DataBind();

//添加一个记录重新显示
DataTable table;
DataRow newRow;

table = data.Tables["Employees"];
newRow = table.NewRow();
newRow["FirstName"] = "Norman";
newRow["LastName"] = "Blake";
table.Rows.Add(newRow);

DataGrid2.DataSource = table;
DataGrid2.DataBind();

//编辑数据行
DataRow[] selectedRows;

selectedRows = table.Select("FirstName='Margaret' AND LastName='Peacock'");
selectedRows [0]["FirstName"] = "John";
selectedRows [0]["LastName"] = "Hartford";


DataGrid3.DataSource = table;
DataGrid3.DataBind();



}

#region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}

/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);

}
#endregion
}
}

提示是selectedRows [0]["FirstName"] = "John";这一句有错.索引超出了数组界限
请问各位大侠是怎么回事呀.到底哪错了?

[lichenlove]

怎么没人给我看一下啊.自己顶一下~

[luyuan6894]

确定一下你的table里有没有行；可能是一个空的table哦

[lichenlove]

有呀.有的.