public TValue this[
	TKey key
] { get; set; }

public TValue this[
	TKey key
] { get; set; }

Public Default Property Item ( 
	key As TKey
) As TValue
	Get 
	Set

Public Default Property Item ( 
	key As TKey
) As TValue
	Get 
	Set

public:
virtual property TValue default[TKey key] {
	TValue get (TKey key) sealed;
	void set (TKey key, TValue value) sealed;
}

public:
virtual property TValue default[TKey key] {
	TValue get (TKey key) sealed;
	void set (TKey key, TValue value) sealed;
}