Rad inline Grid in layered architechture

Question

Dear Friends,
                      I have work out the Rad Inline Grid with insert ,update,delete operations,its working properly without layered architechture,when i am trying to implement it into layered architechture am getting some errors.

I got the code from below link,can you please explain me that how to apply this in layered architecture.

http://www.telerik.com/community/code-library/aspnet-ajax/grid/manual-insert-update-delete-operations-using-auto-generated-editform-with-sql-statements-from-the-code-behind.aspx