protected override void InternalSetValue(PropertyBag.BasicPropertyStore propertyBag, object value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
string text = (string)value;
string text2 = propertyBag.GetValue(InternalSchema.SubjectPrefixInternal) as string;
string text3 = propertyBag.GetValue(InternalSchema.NormalizedSubjectInternal) as string;
if (text2 != null && text3 != null && text == text2 + text3)
{
return;
}
string propertyValue;
string text4;
SubjectProperty.ComputeSubjectPrefix(text, out propertyValue, out text4);
propertyBag.SetValueWithFixup(InternalSchema.SubjectPrefixInternal, propertyValue);
propertyBag.SetValueWithFixup(InternalSchema.NormalizedSubjectInternal, text4);
propertyBag.SetValueWithFixup(InternalSchema.MapiSubject, text);
if (text4 != text3)
{
MessageItem messageItem = propertyBag.Context.StoreObject as MessageItem;
if (messageItem != null)
{
string itemClass = propertyBag.GetValue(InternalSchema.ItemClass) as string;
if (!ObjectClass.IsPost(itemClass))
{
messageItem.ConversationTopic = text4;
if (!string.IsNullOrEmpty(text3))
{
messageItem.ConversationIndex = ConversationIndex.CreateNew().ToByteArray();
if (messageItem.MessageResponseType == MessageResponseType.None)
{
SubjectProperty.ClearReplyForwardProperties(messageItem);
return;
}
}
else if (messageItem.GetValueOrDefault <byte[]>(InternalSchema.ConversationIndex) == null)
{
messageItem.ConversationIndex = ConversationIndex.CreateNew().ToByteArray();
}
}
}
}
}
