internal MsgStorageWriter OpenAttachedMessageWriter()
{
if (this.attachMethod != 5)
{
throw new InvalidOperationException(MsgStorageStrings.NotAMessageAttachment);
}
ComStorage comStorage = null;
MsgStorageWriter msgStorageWriter = null;
try
{
TnefPropertyTag attachDataObj = TnefPropertyTag.AttachDataObj;
string storageName = Util.PropertyStreamName(attachDataObj);
MsgStoragePropertyData.WriteObject(this.propertiesWriter, attachDataObj, MsgStoragePropertyData.ObjectType.Message);
comStorage = this.subStorage.CreateStorage(storageName, ComStorage.OpenMode.CreateWrite);
comStorage.StorageClass = Util.ClassIdMessageAttachment;
msgStorageWriter = new MsgStorageWriter(this.owner, comStorage);
}
finally
{
if (msgStorageWriter == null && comStorage != null)
{
comStorage.Dispose();
}
}
return(msgStorageWriter);
}
internal MsgStorageWriter(MsgStorageWriter parent, ComStorage storage)
{
this.parent = parent;
this.messageStorage = storage;
this.namedPropertyList = parent.NamedPropertyList;
this.isTopLevelMessage = false;
this.Initialize(MsgSubStorageType.AttachedMessage);
}
internal MsgSubStorageWriter(MsgStorageWriter owner, MsgSubStorageType type, ComStorage subStorage)
{
this.owner = owner;
this.subStorage = subStorage;
this.subStorageType = type;
this.attachMethod = -1;
this.propertiesCache = new MemoryStream();
this.propertiesWriter = new BinaryWriter(this.propertiesCache);
this.prefix = new MsgStoragePropertyPrefix(type);
this.prefix.Write(this.propertiesWriter);
}