
使用OleDBCommand相关操作类需要引入System.Data.OleDb命名空间。
通过连接一个带密码的access数据库 读取其中的数据并置入表格中显示,验证连接和命令使用正确性。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.OleDb;
public partial class _Default : System.Web.UI.Page
{
 protected void Page_Load(object sender, EventArgs e)
 {
 //数据库连接,记录集的获取
 //注意更改路径
 String sqlconn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source = E:/pro/web/access_test/app_data/Northwind.mdb;Jet OLEDB:Database Password=111111";
 OleDbConnection myConnection = new OleDbConnection(sqlconn);
 myConnection.Open();
 OleDbCommand myCommand = new OleDbCommand("select * from 运货商", myConnection);
 OleDbDataReader myReader;
 myReader = myCommand.ExecuteReader();
 
 //读取记录集
 Response.Write("<table border=1 cellspacing=0 cellpadding=2>");
 Response.Write("<tr bgcolor=#DAB4B4>");
 for (int i = 0; i < myReader.FieldCount; i++)
 Response.Write("<td>" + myReader.GetName(i) + "</td>");
 Response.Write("</tr>");
 
 while (myReader.Read())
 {
 Response.Write("<tr>");
 for (int i = 0; i < myReader.FieldCount; i++)
 Response.Write("<td>" + myReader[i].ToString ()+ "</td>");
 Response.Write("</tr>");
 }
 Response.Write("</table>");
 //关闭记录集和连接
 myReader.Close();
 myConnection.Close();
 }
}效果图如下:

完整项目文件已上传。
