DBObjectCollection coll
= new DBObjectCollection
();br.Explode(coll);
System.Collections.IEnumerator iter = coll.GetEnumerator();
while (iter.MoveNext())
{
Entity ent = (Entity)iter.Current;
ent.SetDatabaseDefaults();
btr.AppendEntity(ent);
tr.AddNewlyCreatedDBObject(ent, true);
}
br.Erase();
coll.Dispose();