asp.net - Entity framework, custom model, datgrid, paging, sorting not working -

i using vs 2012, .net 4.5, entity framework 5, web forms, vb (but c# me)

i new using entity framework. have decided create new project in .net 4.5 can use item type typed data controls, in case gridview.

i need retrieve data multiple tables 5+, self easy enough, means cant use entitydatasource theres no option build query etc select single table. how can achieve plesae? guess in code behind can set gridview datasource need implement custom paging , sorting?

i presume in case wont able use typed data control can live that, mean viable getting data 1 table. or need populate model results. amount of data in tables on 500,000 rows has paged! , page has number of filters / search otpions

i @ loss here, not understanding something.

i have been researching / googling few hours som findings below, again dont answer or me.

http://weblogs.asp.net/dwahlin/archive/2013/03/26/asp-net-4-5-web-forms-features-strongly-typed-data-controls.aspx

http://forums.asp.net/t/1677303.aspx/1

one option creating view whatever want in database , regenerating edmx include view. have typed object designating fields in view.