public void UnregisterKey(string apiKey)
{
foreach (SettingEntry <string> key in _apiKeyRepository.Cast <SettingEntry <string> >())
{
if (string.Equals(apiKey, key.Value, StringComparison.InvariantCultureIgnoreCase) || key.Value.StartsWith(apiKey, StringComparison.InvariantCultureIgnoreCase))
{
_apiKeyRepository.UndefineSetting(key.EntryKey);
break;
}
}
}