public IDisposable Subscribe(IObserver <TableUpdate> observer)
{
var disposable = _subject.Subscribe(observer);
_table.ReplayRows(observer);
return(disposable);
}
public static IDisposable ReplayAndSubscribe(this IReactiveTable table, Action <TableUpdate> onNext)
{
var rowObserver = new Subject <TableUpdate>();
var subscription = rowObserver.Subscribe(onNext);
table.ReplayRows(rowObserver);
table.Subscribe(rowObserver);
return(subscription);
}
/// <summary>
/// Let the filtered table know that the values used in the predicate have changed and
/// the filter needs to be re-applied.
/// </summary>
public void PredicateChanged()
{
_sourceTable.ReplayRows(
new AnonymousObserver <TableUpdate>(
update =>
{
var sourceRowIndex = update.RowIndex;
int filterRowIndex;
var isMapped = _sourceRowToFilterRow.TryGetValue(sourceRowIndex, out filterRowIndex);
var isVisible = _predicate.RowIsVisible(_sourceTable, sourceRowIndex);
if (isVisible && !isMapped)
{
AddVisibleRow(sourceRowIndex);
}
else if (!isVisible && isMapped)
{
RemoveNotVisibleRow(sourceRowIndex);
}
}));
}
/// <summary>
/// Use this when aggregating over tables that have existing data
/// </summary>
public void FinishInitialisation()
{
_sourceTable.ReplayRows(Observer.Create <TableUpdate>(OnSourceValue));
}