Help Writing The SqlConnectionString.

Hi.
I realize this may have been asked a thousand times before, but it's still not working for me. I would appreciate any help with it.
 
First, I created a GridView, and from it I created a new SqlDataSource and let it point to the database in C:My ProjectApp_DataASPNETDB.MDF. This automatically created a connectionString in the Web.Config file, saying the following:
  "R1ASPNETDBConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename="C:My ProjectApp_DataASPNETDB.MDF";Integrated Security=True;Connect Timeout=30;User Instance=True"
providerName="System.Data.SqlClient" />

 
 
Now when I try to programatically use that connection string, the program crashes.
 
 
 
 
Below is my code:
 <script runat="server">

String sqlConnectionString = @"Data Source=.SQLEXPRESS;AttachDbFilename="C:My ProjectApp_DataASPNETDB.MDF";Integrated Security=True;Connect Timeout=30;User Instance=True";

protected void Page_Load(object sender, EventArgs e)
{
using (SqlConnection conn = new SqlConnection(sqlConnectionString))
{
conn.Open();

const String selectQuery = "SELECT StatusName FROM Status ORDER BY StatusName";

Label1.Text = "";

using (SqlCommand cmd = new SqlCommand(selectQuery, conn))
{
SqlDataReader dr = cmd.ExecuteReader();

if (dr.Read())
{
Label1.Text += dr[0];
while (dr.Read())
{
Label1.Text += ", ";
Label1.Text += dr[0];
}
Label1.Text += ". ";
}
else
Label1.Text = "None.";
}

if (conn != null)
conn.Close();
}
}

 
 
 
Here's the error message I'm getting:
 
Server Error in '/My Project' Application.

Keyword not supported: 'c:my projectapp_dataaspnetdb.mdf&quot;;integrated security'.



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.ArgumentException: Keyword not supported: 'c:my projectapp_dataaspnetdb.mdf&quot;;integrated security'.



Source Error:






Line 15: protected void Page_Load(object sender, EventArgs e)
Line 16: {
Line 17: using (SqlConnection conn = new SqlConnection(sqlConnectionString))
Line 18: {
Line 19: conn.Open();








Source File: c:My Project est.aspx    Line: 17




Stack Trace:






[ArgumentException: Keyword not supported: 'c:my projectapp_dataaspnetdb.mdf&quot;;integrated security'.]
System.Data.Common.DbConnectionOptions.ParseInternal(Hashtable parsetable, String connectionString, Boolean buildChain, Hashtable synonyms, Boolean firstKey) +417
System.Data.Common.DbConnectionOptions..ctor(String connectionString, Hashtable synonyms, Boolean useOdbcRules) +99
System.Data.SqlClient.SqlConnectionString..ctor(String connectionString) +52
System.Data.SqlClient.SqlConnectionFactory.CreateConnectionOptions(String connectionString, DbConnectionOptions previous) +25
System.Data.ProviderBase.DbConnectionFactory.GetConnectionPoolGroup(String connectionString, DbConnectionPoolGroupOptions poolOptions, DbConnectionOptions& userConnectionOptions) +141
System.Data.SqlClient.SqlConnection.ConnectionString_Set(String value) +38
System.Data.SqlClient.SqlConnection.set_ConnectionString(String value) +4
System.Data.SqlClient.SqlConnection..ctor(String connectionString) +21
ASP.test_aspx.Page_Load(Object sender, EventArgs e) in c:My Project est.aspx:17
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +13
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +45
System.Web.UI.Control.OnLoad(EventArgs e) +80
System.Web.UI.Control.LoadRecursive() +49
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3745
  
 
My question is: How should I write the connection string? I have a feeling the problem is with the quotes (&quot;), but I can't figure out how to write it otherwise.

Thank you very much.