public object this[object key]
{
get { return(m_map.Find((TKey)key).ValueOrDefault); }
set
{
throw CreateNotSupportedException();
}
}
public bool TryGetValue(TKey key, out TValue value)
{
var result = m_map.Find(key);
value = result.HasValue
? result.Value
: default(TValue);
return(result.HasValue);
}