public TValue this[TKey key]
{
get
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
KeyValuePair <TKey, TValue> foundValue;
var found = _root.TryFind(KeyPair(key), _comparer, out foundValue);
if (!found)
{
throw ExceptionHelper.GetKeyNotFoundException(key);
}
return(foundValue.Value);
}
}
public bool Contains(T item)
{
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
T foundItem;
return(_root.TryFind(item, _comparer, out foundItem));
}