Does the DevForce entity collections support standard grid operations


   Please keep in mind I am doing my main data access in the view model ( i have no idea how to use a reporitory for this one) 
 
My load data query for this screen is
 
var query = (EntityQuery<Product>)Context.Products.OrderBy(o => o.ProdID).Include("Inventories")

.Where(Data.FilterDescriptors).Sort(Data.SortDescriptors).Skip(startIndex).Take(itemCount);

query.ExecuteAsync().Completed += (s, e) =>{Data.Load(startIndex, e.Results);};
I cache the manufacturers with 

var op = Manager.Manufacturers.OrderBy(c => c.ManName).ExecuteAsync();

when the program first loads by calling the manufacturersviewmodel which then hits the repository