I typically use Revit.DB.Transaction() object
from Autodesk.Revit.DB import Transaction
t = Transaction(doc, 'Name')
But most code samples I see, and the Dynamo wiki page suggests the
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument
Are there any disadvantages to using
advantages in using
The wiki page mentions “There is no way to rollback the main Dynamo Transaction”, so that seems to be +1 for typical transactions. Any other differences?
What is your goal? Are you looking to temporarily delete elements in order to get a list of affected elements?
The transaction manager is just a layer around the regular revit transactions that manages them for you. It’s preferable to use it instead of regular transactions because that way, if your script crashes before a transaction can be committed, the manager will make sure to finalize everything and do all the necessary cleanup. Otherwise you’ll end up with a stray open transaction, at least until revit’s built-in utilities can clean it up.
If you need to do any rollbacks, you can always open a sub-transaction inside a dynamo controlled transaction. Sub-transaction can only exist in an open transaction and should not be able to lock down your document.
Thank you @Dimitar_Venkov
@Andreas_Dieckmann, not specif issue, I was just trying to understand the difference.