Trouble Connecting To SQL Express With ASP.NET Page

Hello, I'm using Visual Studio 2003 and I need to be able to connect to an SQL Server 2005 Express database on the same machine using ASP.NET pages, but I'm having difficulty getting the pages to make a connection. I'm new to ASP.NET and I'm probably making some totally elemental mistake. I'd appreciate any assistance anyone can offer.
 
I have pasted in part of the codebehind file for a web form (asterisking out the database name) and the error report that appears in the browser when I call the page.


using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace WebApplication2
{
    /// <summary>
    /// Summary description for WebForm1.
    /// </summary>
    public class WebForm1 : System.Web.UI.Page
    {
        private void Page_Load(object sender, System.EventArgs e)
        {
            // Put user code to initialize the page here
            string strConnection="Integrated Security=SSPI;Persist Security Info=False;";
            strConnection +="initial catalog = ******;server=WILL-000993DB49\SQLEXPRESS;";
            SqlConnection objConnection = new SqlConnection(strConnection);
            objConnection.Open();
            objConnection.Close();


        }

        #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
    }
}

 

Server Error in '/WebApplication2' Application.

Cannot open database "******" requested by the login. The login failed.
Login failed for user 'WILL-000993DB49ASPNET'.



Description: An
unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the
error and where it originated in the code.



Exception Details: System.Data.SqlClient.SqlException: Cannot open database "******" requested by the login. The login failed.
Login failed for user 'WILL-000993DB49ASPNET'.



Source Error:






Line 24: strConnection +="initial catalog = ******;server=WILL-000993DB49\SQLEXPRESS;";
Line 25: SqlConnection objConnection = new SqlConnection(strConnection);
Line 26: objConnection.Open();
Line 27: objConnection.Close();
Line 28:








Source File: c:inetpubwwwrootwebapplication2webform1.aspx.cs    Line: 26




Stack Trace:






[SqlException (0x80131904): Cannot open database "******" requested by the login. The login failed.
Login failed for user 'WILL-000993DB49ASPNET'.]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +734963
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1838
System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +33
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +628
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +359
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +28
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +496
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
WebApplication2.WebForm1.Page_Load(Object sender, EventArgs e) in c:inetpubwwwrootwebapplication2webform1.aspx.cs:26
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +47
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061











Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.210