Namespace: Autodesk.Revit.DB Class: TransactionGroup

RollBack

Method

Description:
Rolls back the transaction group, which effectively undoes all transactions committed inside the group.

Remarks:

Note that once a group is rolled back, the undone transactions cannot be redone.

RollBack can be called only when all inner transaction groups and transactions are finished, i.e. after they were either committed or rolled back.

Syntax

public TransactionStatus RollBack()

Public Function RollBack As TransactionStatus

public:
TransactionStatus RollBack()

Exceptions

Exception	Condition
Autodesk.Revit.Exceptions.InvalidOperationException	The Transaction group has not been started (its status is not 'Started').. -or- The transaction's document is currently in failure mode. Transaction groups cannot be closed until failure handling is finished. You may use a transaction finalizer to close a group after the failure handling ends.