Исходный код вики ICollection dictionary wrapper

Версия 1.1 от Alexandr Fokin на 2023/06/30 11:57

author	version	line-number	content
		1	{{code language="c#"}}
		2	public class CollectionDictionaryWrapper<TKey, TValue>
		3	: ICollection<TValue>,
		4	IReadOnlyCollection<TValue>
		5	{
		6	private readonly Func<TValue, TKey> _keySelector;
		7	public IDictionary<TKey, TValue> Data { get; private set; }
		8
		9
		10	public DictionaryWrapperCollection(
		11	IDictionary<TKey, TValue> dict,
		12	Func<TValue, TKey> keySelector
		13	)
		14	{
		15	Data = dict;
		16	_keySelector = keySelector;
		17	}
		18
		19	public DictionaryWrapperCollection(
		20	Func<TValue, TKey> keySelector
		21	)
		22	: this(
		23	new Dictionary<TKey, TValue>(),
		24	keySelector
		25	)
		26	{ }
		27
		28
		29	#region ICollection
		30
		31	public int Count => Data.Count;
		32
		33	public bool IsReadOnly => Data.IsReadOnly;
		34
		35	public void Add(TValue item)
		36	{
		37	Data.Add(_keySelector(item), item);
		38	}
		39
		40	public void Clear()
		41	{
		42	Data.Clear();
		43	}
		44
		45	public bool Contains(TValue item)
		46	{
		47	//Можно сделать проверку по ключу, пока сделаю по KeyValuePair
		48
		49	return Data
		50	.Contains(new KeyValuePair<TKey, TValue>(_keySelector(item), item));
		51	}
		52
		53	public void CopyTo(TValue[] array, int arrayIndex)
		54	{
		55	Data.Values.CopyTo(array, arrayIndex);
		56	}
		57
		58	public IEnumerator<TValue> GetEnumerator()
		59	{
		60	return Data.Values.GetEnumerator();
		61	}
		62
		63	public bool Remove(TValue item)
		64	{
		65	return Data.Remove(_keySelector(item));
		66	}
		67
		68	IEnumerator IEnumerable.GetEnumerator()
		69	{
		70	return Data.Values.GetEnumerator();
		71	}
		72
		73	#endregion
		74	}
		75	{{/code}}

Приложения