How to set connectionstring for LINQ dataaccess in markup?

Hi,

I am using LINQ to SQL, and one thing I don't like about it, is that it automatically adds connectionstring to my .config file and use a connection string key in the generated code, since I already have a connectionstring that I am using.

When I use the datacontext object in my C# code, its okay because then I add the connectionstring as a constructor parameter. Like this:
CargoInventoryDataContext cid = new CargoInventoryDataContext(WebConfigurationManager.ConnectionStrings["IMS"].ConnectionString);

But when I only use the datacontext object in my .aspx file/markup, how do I then specify the connectionstring key to use in the markup???

This is how my markup for LINQ looks like:

<asp:LinqDataSource ID="ManuallyRegisteredTag_LinqDataSource" runat="server"  
                                        ContextTypeName="ManualDataIdDataContext"   TableName="ManualRegisteredTags"
                                        Select="new (TagId, TagName)" Where="ManualRegistration == @ManualRegistration AND ApplicationId == @ApplicationId">
                        <WhereParameters>
                            <asp:Parameter Name="ManualRegistration" Type="Boolean" DefaultValue="true" />
                            <asp:Parameter Name="ApplicationId" Type="Int32" DefaultValue="13" />
                        </WhereParameters>
     
                    </asp:LinqDataSource>

Tnx :)