Returns an instance of a set that contains all the keys contained in the HashMap instance. A set consists of unique values. The type of the set is Progress.Collections.KeySet. The set is backed by the actual keys in the map, so changes to the map are reflected in the returned set.

Data type: Progress.Collections.ISet<K>

Access: PUBLIC Read-only

Applies to: Progress.Collections.HashMap<K,V> class

Changes are not allowed to the set returned (add/remove/clear); it is only used for reading operations.

See also

<T> Generic type reference