private void CalculateMapiProperties()
{
if (!this.isListChanged && !this.isCorrectionNeeded)
{
return;
}
if (base.Count == 0)
{
this.names = null;
this.blob = null;
}
else
{
ParticipantEntryId[] array = new ParticipantEntryId[base.Count];
int num = 0;
StringBuilder stringBuilder = new StringBuilder(base.Count * 16);
foreach (Participant participant in this)
{
if (num != 0)
{
stringBuilder.Append(';');
}
array[num++] = ParticipantEntryId.FromParticipant(participant, ParticipantEntryIdConsumer.SupportsADParticipantEntryId);
stringBuilder.Append(participant.DisplayName);
}
this.blob = ParticipantEntryId.ToFlatEntryList(array);
this.names = stringBuilder.ToString();
}
this.isListChanged = false;
this.isCorrectionNeeded = false;
this.isPropertiesChanged = true;
}