42     internal sealed class ReadOnlyDictionary<TKey, TValue> : IDictionary<TKey, TValue>
44         private readonly IDictionary<TKey, TValue> wrapped;
46         public ReadOnlyDictionary(IDictionary<TKey, TValue> wrapped)  in ReadOnlyDictionary()  argument
51         public void Add(TKey key, TValue value)  in Add()
56         public bool ContainsKey(TKey key)  in ContainsKey()
61         public ICollection<TKey> Keys
66         public bool Remove(TKey key)  in Remove()
71         public bool TryGetValue(TKey key, out TValue value)  in TryGetValue()
81         public TValue this[TKey key]
87         public void Add(KeyValuePair<TKey, TValue> item)  in Add()  argument
97         public bool Contains(KeyValuePair<TKey, TValue> item)  in Contains()  argument
102         public void CopyTo(KeyValuePair<TKey, TValue>[] array, int arrayIndex)  in CopyTo()  argument
117         public bool Remove(KeyValuePair<TKey, TValue> item)  in Remove()  argument
122         public IEnumerator<KeyValuePair<TKey, TValue>> GetEnumerator()  in GetEnumerator()