Struggling to even get DynamicData example working!

[MrMode]

I have followed the Walkthrough: Creating a New ASP.NET Dynamic Data Web Site Using Scaffolding (

http://msdn.microsoft.com/en-us/library/cc488469(v=vs.90).aspx)

I have created the Dynamic Data website in Visual Studio Express 2012 without problems.

I have created the database model using the Entity Framework without problems.

I have added data using the AdventureWorks.dbml as suggested in the tutorial etc,

Where I am stuck is registering the data model for use by Dynamic Data! In the Global.asax file I have located the commented section that contains RegisterRoutes method, but no matter how hard I cross my fingers, I cannot get the thing working.

Public Shared Sub RegisterRoutes(ByVal routes As RouteCollection)
    '                     IMPORTANT: DATA MODEL REGISTRATION 
    ' Uncomment this line to register an ADO.NET Entity Framework model for ASP.NET Dynamic Data.
    ' Set ScaffoldAllTables = true only if you are sure that you want all tables in the
    ' data model to support a scaffold (i.e. templates) view. To control scaffolding for
    ' individual tables, create a partial class for the table and apply the
    ' <ScaffoldTable(true)> attribute to the partial class.
    ' Note: Make sure that you change "YourDataContextType" to the name of the data context
    ' class in your application.
    ' See [URL unfurl="true"]http://go.microsoft.com/fwlink/?LinkId=257395[/URL] for more information on how to register Entity Data Model with Dynamic Data
        Model.RegisterContext(GetType(AdventureWorksLT_DataModel.AdventureWorksLT_DataEntities), _
    New ContextConfiguration() With {.ScaffoldAllTables = True})
        '  DefaultModel.RegisterContext( _
        'New System.Func(Of Object)(Function() DirectCast(New YourDataContextType(), IObjectContextAdapter).ObjectContext), _
        '  New ContextConfiguration() With {.ScaffoldAllTables = False} _
        ')

I noticed that I was using AdventureWorks2012 not the AdventureWorksLT version fo the database so changed the string to:

   Model.RegisterContext(GetType(AdventureWorks2012_DataModel.AdventureWorks2012_DataEntities), _
    New ContextConfiguration() With {.ScaffoldAllTables = True})

I have no idea what I have or have not done, but it seems unrealistically difficult for a novice to even get started? Can anyone help me get this thing configured so I can at least start to learn how to use it?

 

[MrMode]

I have started several times from scratch.

I have been able to set up a Dynamic Data Website, attach a database (NORTHWND.mdf on (LocalDB\v11.0) ), create a Linq to SQL class and change the Global.asax file so that the default.aspx loads with the list of tables.

  DefaultModel.RegisterContext(GetType(NorthwndDataContext), New ContextConfiguration() With {.ScaffoldAllTables = True})

When I click on a table, this error pops up!

"Unable to cast object of type 'NorthwndDataContext' to type 'System.Data.Objects.ObjectContext'.