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Connection tester

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs"  Inherits="TestConnection" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head id="Head1" runat="server">    <title>Testing the Connection</title> </head> <body>    <form id="form1" runat="server">       <div id="container">          <h1>Testing the Connection</h1>                    This example tests the <code>Connection</code> class.                    <asp:Label ID="labMsg" runat="server" />                 </div>    </form> </body> </html> File: Default.aspx.cs using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.OleDb; using System.Data.SqlClient; using System.Web.Configuration; public partial class TestConnection : System.Web.UI.Page {    protected void Page_Load(object sender, EventArgs e)    {       SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();       builder.DataSource = "localhost";       builder.InitialCatalog = "Northwind";       builder.IntegratedSecurity = true;       string connString = builder.ConnectionString;       SqlConnection conn = null;       try       {          conn = new SqlConnection(connString);          conn.Open();          labMsg.Text = "State of Connection: " + conn.State;       }       catch (Exception ex)       {          labMsg.Text = "Error occurred accessing the database";          labMsg.Text += "<br/>" + ex.Message;       }       finally       {          if (conn != null)             conn.Close();       }    } }