| FixedQueueT | Represents a QueueT with a fixed capacity. |
| FixedStackT | Represents a StackT with a fixed capacity. |
| NameObjectCollection | Similarly to a NameValueCollection, this class represents a collection of associated String keys and Object values that can be accessed either with the name or with the index. |
| SortableObservableCollectionT | Represents a sortable, dynamic data collection that provides notifications when items get added, removed, or when the whole list is refreshed. The items in the collection are automatically sorted by the selector method specified in SortingSelector property. |
| ReadOnlyValuePairTValue | Represents a read-only pair of values of the same Type. |
| ReadOnlyValuePairTValue1, TValue2 | Represents a read-only pair of values. |
| ValuePairTValue | Represents a pair of values of the same Type. |
| ValuePairTValue1, TValue2 | Represents a pair of values. |