How to remove flashing on persisting remotely populated jqgrid tree node

jqGrid tree nodes are read from server using json data. Click in node reads child nodes from server.
Code below is used to restore opened tree node if page is loaded.
Only single node is opened always in tree.
Controller assings node ids to autoClicked array and gridComplete opens nodes using this path.
This causes grid flasinging on page load since multiple server requests buid grid multiple times.
How to disable grid flashing ?
Is it possible to prevent multiple jqGrid building and show only find jqGrid tree ?

How to populate a view models using a linq query ASP.NET MVC 5 Entity Framework

Ok so this is a follow-up from MVC 5 ASP.NET Entity Framework Collect Form Data through Range Input , My Database Structure Consists of a Survey Having Many Categories, A Category having many Questions, then a Question having many QuestionResults and finally QuestionResults having many CategoryResults, in the HomeController I have the models being bound through the ViewModel, but I now require it to be populated with my entities through the context with Linq, any help will be greatly appreciated.