myconnoledb.aspx.cs

ASP C#代码实例 适合初学人士学习使用

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;
using System.Configuration;

namespace Example_4_3
{
	/// <summary>
	/// Summary description for ConnOleDB.
	/// </summary>
	public class MyConnOleDB : System.Web.UI.Page
	{	
		private readonly string OLECONNECTIONSTRING = ConfigurationSettings.AppSettings["OLECONNECTIONSTRING"].ToString();
		
		private void Page_Load(object sender, System.EventArgs e)
		{			
		    String OleDbConnectionString = OLECONNECTIONSTRING + Server.MapPath("accessDB.mdb");
			OleDbConnection oleDbConnection = new OleDbConnection(OleDbConnectionString);

			try
			{
				///打开OLEDB数据库的链接
				oleDbConnection.Open();
				Response.Write("连接Access数据源成功！！！");

				//显示链接成功信息
				Response.Write("<br>OLEDB数据库连接的链接字符串：" + oleDbConnection.ConnectionString);
				Response.Write("<br>OLEDB数据库连接的数据库名称：" + oleDbConnection.Database);
				Response.Write("<br>OLEDB数据库连接的数据源：" + oleDbConnection.DataSource);
				Response.Write("<br>OLEDB数据库连接的数据库驱动：" + oleDbConnection.Provider);
				Response.Write("<br>OLEDB数据库连接的服务器版本：" + oleDbConnection.ServerVersion);
				Response.Write("<br>OLEDB数据库连接的打开状态：" + oleDbConnection.State.ToString());

				///执行数据库的操作
				///如选择、插入、删除和更新等

				///关闭OLEDB数据库的链接
				oleDbConnection.Close();
				Response.Write("<br><br>OLEDB数据库连接的关闭状态：" + oleDbConnection.State.ToString());				
			}
			catch(Exception ex)
			{
				//抛出数据库连接异常
				Response.Write(ex.Message);
			}			
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.Load += new System.EventHandler(this.Page_Load);
		}
		#endregion
	}
}