You can use database reactor to identify the entities created due to the call of “ExplodeToOwnerSpace”. Refer below code, which adds a “ObjectAppended” event callback just before calling “ExplodeToOwnerSpace”. The event callback is removed after the call to “ExplodeToOwnerSpace”. An “ObjectIdCollection” is populated inside the “ObjectAppended” callback which can be used to determine the objects added in “ExplodeToOwnerSpace” API
static ObjectIdCollection ids = new ObjectIdCollection();
[CommandMethod("ExplodeToOwnerSpace")]
public static void ExplodeToOwnerSpace()
{
Document doc = Application.DocumentManager.MdiActiveDocument;
Database db = doc.Database;
Editor ed = doc.Editor;
PromptEntityOptions options =
new PromptEntityOptions("nSelect block reference");
options.SetRejectMessage("nSelect only block reference");
options.AddAllowedClass(typeof(BlockReference), false);
PromptEntityResult acSSPrompt = ed.GetEntity(options);
using (Transaction tx =
db.TransactionManager.StartTransaction())
{
BlockReference blockRef = tx.GetObject(acSSPrompt.ObjectId,
OpenMode.ForRead) as BlockReference;
//add event
ids.Clear();
db.ObjectAppended +=
new ObjectEventHandler(db_ObjectAppended);
blockRef.ExplodeToOwnerSpace();
//remove event
db.ObjectAppended -=
new ObjectEventHandler(db_ObjectAppended);
foreach (ObjectId id in ids)
{
//get each entity....
ed.WriteMessage("n" + id.ToString());
}
tx.Commit();
}
}
static void db_ObjectAppended(object sender, ObjectEventArgs e)
{
//add the object id
ids.Add(e.DBObject.ObjectId);
}
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