[dba-VB] Connection String Anomoly

I am trying to understand what could be causing this to happen.  I 
have this code:

     Protected Sub Page_Load(ByVal sender As Object, ByVal e As 
System.EventArgs) Handles Me.Load

         Server.ScriptTimeout = 360

         Dim conn As New SqlClient.SqlConnection
         conn.ConnectionString = "data source=MySQLSource;initial 
catalog=MyDataBase;user id=sa;password=mypassword"

This connection works and I can access stored procedures etc.

However, when I replace the Conn.Connection line above with this line 
below it does not work

conn.ConnectionString = 
System.Web.Configuration.WebConfigurationManager.ConnectionStrings( 
"MyDatabaseConnection").ConnectionString

The Web.Config file has this:

         <connectionStrings>
                 <add
                         name="MyDatabaseConnection"
                         connectionString="data 
source=MySQLSource;initial catalog=MyDataBase;user id=sa;password=mypassword"
                         providerName="System.Data.SqlClient"
                 />
         </connectionStrings>

Any ideas why this might be?


Regards

David Emerson
Dalyn Software Ltd
Wellington, New Zealand