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:

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