I know I'm able to get RoleAssignments in my call to get a ListItemCollection, e.g.
context.Load(items, x => x.Include(y => y.RoleAssignments));
Is there a way to also load each RoleAssignments' RoleDefinitionBindings in the same call to the server? Can I extend the Includes in some way?
That one should do it:
context.Load(items, iCol => iCol.Include(
item => item.RoleAssignments,
item => item.RoleAssignments.Include(ra => ra.RoleDefinitionBindings)));
Include method better too.
Include request, for example if I want only role assignments with a specific attribute value, can I include that within the lambda?
Where in the LINQ request, the filtering actually happens client-side, thus there's no improvment in doing it in the Load over doing it after getting the collection, with a classic foreach loop.