Question

This is really annoying…and I know it is something extremely simple…
1. I create a new Dynamic Data project.
2. I add a LINQ-to-SQL class and drag and drop some tables onto the class.
3. I open the global.asax.vb and uncomment the line:
DefaultModel.RegisterContext(GetType(YourDataContext), New ContextConfiguration() With {.ScaffoldAllTables = True})
I remove YourDataContext and replace it with the DataContext from my LINQ-to-SQL class:
DefaultModel.RegisterContext(GetType(NorthwindDataContext), New ContextConfiguration() With {.ScaffoldAllTables = True})
I then try to debug/build/etc. and receive the following error:
Type ‘NorthwindDataContext’ is not defined
Why is it not defined? It seems like its not recognizing I created the DBML file.

Answer 1

This is a very strange issue and I am still not sure that I have entirely fixed the issue. But, here is what I think I have learned:
1. If you are creating a New Project in VS2010 you must place the LINQ-to-SQL DBML file in the root project directory.
2. If you are creating a new Web Site in VS2010 you must place the LINQ-to-SQL DBML file in a newly created App_Code directory.
3. If you place it in the wrong place, scrap the project and start over – it doesn’t seem to work even if you move the files to the correct location or recreate them in the correct location.
Dave.