public void UpdateLabels()
{
var labels = WalletHelpers.GetLabels();
var mostUsedLabels = labels.GroupBy(x => x)
.Select(x => new
{
Label = x.Key,
Count = x.Count()
})
.OrderByDescending(x => x.Count)
.ToList();
_sourceLabels.Clear();
_sourceLabels.AddRange(
mostUsedLabels.Select(x => new SuggestionLabelViewModel(x.Label, x.Count)));
}
public ReceiveViewModel(Wallet wallet)
{
_wallet = wallet;
_labels = new ObservableCollectionExtended <string>();
var allLabels = WalletHelpers.GetLabels();
var mostUsedLabels = allLabels.GroupBy(x => x)
.Select(x => new
{
Label = x.Key,
Count = x.Count()
})
.OrderByDescending(x => x.Count)
.ToList();
_suggestions = mostUsedLabels.Select(x => x.Label).ToHashSet();
_suggestionLabels = new SourceList <SuggestionLabelViewModel>();
_suggestionLabelResults = new ObservableCollectionExtended <SuggestionLabelViewModel>();
_suggestionLabels.AddRange(
mostUsedLabels.Select(x => new SuggestionLabelViewModel(x.Label, x.Count)));
var suggestionLabelsFilter = this.WhenAnyValue(x => x.Labels).Select(_ => Unit.Default)
.Merge(Observable.FromEventPattern(Labels, nameof(Labels.CollectionChanged)).Select(_ => Unit.Default))
.Select(SuggestionLabelsFilter);
_suggestionLabels
.Connect()
.Filter(suggestionLabelsFilter)
.Sort(SortExpressionComparer <SuggestionLabelViewModel> .Descending(x => x.Count))
.Top(3)
.ObserveOn(RxApp.MainThreadScheduler)
.Bind(_suggestionLabelResults)
.Subscribe();
SetupCancel(enableCancel: true, enableCancelOnEscape: true, enableCancelOnPressed: true);
EnableBack = false;
NextCommand = ReactiveCommand.Create(OnNext, _labels.ToObservableChangeSet().Select(_ => _labels.Count > 0));
ShowExistingAddressesCommand = ReactiveCommand.Create(OnShowExistingAddresses);
}
