Boostrap Treeview with EF and MVC

Question

Hi 

I am creating an asp.net mvc bootstrap treeview following

http://www.c-sharpcorner.com/UploadFile/3d39b4/bootstrap-tree-view-in-Asp-Net-mvc/.

My issue is  Sandeep is hardcoding in the BookViewMpdel items. I want to use a query to get it from the SQL Server database.

Any help will be appreciated.