private void AddCancel(long transactionId, DateTimeOffset localTime)
{
if (transactionId == 0)
throw new ArgumentNullException(nameof(transactionId));
if (localTime.IsDefault())
throw new ArgumentNullException(nameof(localTime));
if (_cancel.ContainsKey(transactionId))
throw new ArgumentException(LocalizedStrings.Str1107Params.Put(transactionId), nameof(transactionId));
_cancel.Add(transactionId, localTime);
}
