/// <summary> /// Gets conditions for <see cref="ReadOnlyObservableCollection{TObject}"/>. /// </summary> /// <typeparam name="TObject">The type of the object.</typeparam> /// <param name="source">The source <see cref="ReadOnlyObservableCollection{TObject}"/>.</param> /// <returns><see cref="IEnumerableCondition{TSource,TObject}"/></returns> public static IEnumerableCondition <ReadOnlyObservableCollection <TObject>, TObject> Is <TObject>(this ReadOnlyObservableCollection <TObject> source) => source.IsEnumerable <ReadOnlyObservableCollection <TObject>, TObject>();