Gets the IAttributeValue instance with the specified key. If there are more than one instance for the key the first (i.e. the instance that was added to this map first) is returned. Returns null if there is no such instance.

IAttributeValue this[
	string key
] { get; }

ReadOnly Default Property Item ( _
	key As String _
) As IAttributeValue

property IAttributeValue^ default[String^ key] {
	IAttributeValue^ get (String^ key);
}