ObservableCollectionLookupTKey, TItem, TCollectionRemove(TKey) - метод

public bool Remove(
	TKey key
)

Public Function Remove ( 
	key As TKey
) As Boolean

public:
virtual bool Remove(
	TKey key
) sealed

abstract Remove : 
        key : 'TKey -> bool 
override Remove : 
        key : 'TKey -> bool