For more detail information about how to enable the incremental loading in Crosslight please check the article in here.

In order to enable incremental loading with the App Framework, simply inherit your ViewModel from DataListViewModelBase<TModel, TRepository> class and set the EnableIncrementalLoading property to true.

Following snippet code shows a sample of ViewModel with incremental loading enabled.

namespace MyInventory.ViewModels
{
    public class ItemListViewModel : DataListViewModelBase<Item, IItemRepository>
    {
        private ItemQueryDefinition _queryDefinition = null;

        public ItemListViewModel()
        {
            // configure data behaviors
            this.EnableRefresh = true;
            this.EnableIncrementalRefresh = true;
            this.EnableIncrementalLoading = true;
            this.EnableAsyncFilter = true;
            this.IncrementalLoadingSize = 20;

            // commands
            this.LoadIncrementalCommand = new DelegateCommand(ExecuteLoadIncrementalCommand,
                                                           CanExecuteLoadIncrementalCommand);
        }

        public DelegateCommand LoadIncrementalCommand
        {
            get;
            set;
        }

        public override string TitleText
        {
            get
            {
                if (this.Items != null)
                    return "Inventories (" + this.Items.Count() + ")";
                return "Inventories";
            }
        }

        protected override IQueryDefinition ViewQuery
        {
            get
            {
                if (_queryDefinition == null)
                    _queryDefinition = new ItemQueryDefinition();
                return _queryDefinition;
            }
        }

        private bool CanExecuteLoadIncrementalCommand(object paramater)
        {
            return this.EnableIncrementalLoading;
        }

        private void ExecuteLoadIncrementalCommand(object parameter)
        {
            LoadDataIncremental();
        }
    }
}

Please obtain and evaluate the sample that exhibits this feature in WebAPI Enabled Inventory Tracker.

Hope this helps.