Implementing Telerik VirtualQueryableCollectionView with MVVM pattern

public PricingView(PricingViewModel vm)
{
    InitializeComponent();

    var dataView = new VirtualQueryableCollectionView()
                         { LoadSize=20, VirtualItemCount = vm.Prices.Count };
    dataView.ItemsLoading += (sender, e) =>
        {
            var view = sender as VirtualQueryableCollectionView;
            if (dataView != null)
            {
                view.Load(e.StartIndex, vm.Prices.Skip(e.StartIndex).Take(e.ItemCount));
            }
        };
    this.PricesGridView.ItemsSource = dataView;
}

void MainViewModel()
{
    this.Traces = new VirtualQueryableCollectionView<MyEntityClass>()
    {
        // ViewModel also manages the LoadSize
        LoadSize = this.PageSize,
        VirtualItemCount = myModel.TotalCount
    };
    this.Traces.ItemsLoading += (s, args) =>
    {
        this.Traces.Load(args.StartIndex,
                         myModel.FetchRange(args.StartIndex, args.ItemCount));
    };
}