ADO.NET连接数据库

using System.Data;

using System.Data.Sql;

using System.Data.SqlClient;

protected void Page_Load(object sender, EventArgs e)

        {

             SqlConnection conn = new SqlConnection(@"server=HP\MYSQL;uid=sa;pwd=123456;database=Book_Management_System;timeout=10");        //无密码验证模式的ConnectString为(server=HP\\SQLEXPRESS;database=binguan;Integrated Security=SSPI;timeout=5)

            try

            {

             　  conn.Open();        //打开连接

            }

            catch (SqlException E)

            {

                (Master.FindControl("ErrorDisplay") as Label).Text = E.Message.ToString();        //将错误显示在ErrorDisplay这个Label控件中

            }

            finally

            {

                conn.Close();       //关闭数据库连接

            }

        }

ADO.NET连接数据库