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。