public ChildrenService(FilterMode filterMode, ItemFilter itemFilter, SortParameterData sortParameters)
: base(item => item.Id)
{
var sort = sortParameters.WhenValueChanged(t => t.SelectedItem)
.Select(prop => prop.Comparer);
var modeFilter = itemFilter.WhenValueChanged(t => t.TreeMode)
.Select(ModeFilter);
var searchFilter = itemFilter.WhenValueChanged(t => t.SearchText)
.Select(SearchFilter);
var childNodes = this.Connect()
.TransformToTree(item => item.ParentId)
.Transform(item =>
{
item.Item.InitializeChildNodes(item);
return(item.Item);
})
.DisposeMany()
.Filter(modeFilter)
.Filter(searchFilter)
.Sort(sort)
.Bind(this.childNodes)
.Subscribe();
this.CleanUpTarget.Add(childNodes);
}
public PagedDataViewer(ITradeService tradeService, SearchHints searchHints)
{
SearchHints = searchHints;
SortParameters = new SortParameterData(
tradeService.Live
.Selecting(t => new TradeProxy(t))
.CollectionDisposing(),
_consumer);
AllData =
new Computing <ObservableCollection <TradeProxy> >(
() => SortParameters.SelectedItem.SortedData)
.Filtering(t =>
t.Trade.CurrencyPair.Contains(SearchHints.SearchTextThrottled.Value, StringComparison.OrdinalIgnoreCase) ||
t.Trade.Customer.Contains(SearchHints.SearchTextThrottled.Value, StringComparison.OrdinalIgnoreCase));
Data = AllData.Paging(25, 1).For(_consumer);
_nextPageCommand = new Command(() => Data.CurrentPage = Data.CurrentPage + 1, () => Data.CurrentPage < Data.PageCount);
_previousPageCommand = new Command(() => Data.CurrentPage = Data.CurrentPage - 1, () => Data.CurrentPage > 1);
}
