예제 #1
0
 private static INotifyCollectionChanged getSource(
     INotifyCollectionChanged source1,
     IReadScalar <INotifyCollectionChanged> source2Scalar,
     IEqualityComparer <TSourceItem> equalityComparer)
 {
     return(source1
            .GroupJoining <TSourceItem, TSourceItem, TSourceItem>(
                source2Scalar, item1 => item1, item2 => item2, equalityComparer)
            .Filtering(jg => jg.Count > 0)
            .Selecting(jg => jg.OuterItem));
 }