Namespace: Autodesk.Revit.DB Class: SubTransaction

SubTransaction.Start

Method

Description:
Starts the sub-transaction.

Remarks:

A sub-transaction can only be started in an open transaction, and it must be closed (committed or rolled back) while still inside the open transaction.

A sub-transaction can be started in another open sub-transaction, but then it must be closed before the parent sub-transaction is closed.

Syntax

public TransactionStatus Start()

Public Function Start As TransactionStatus

public:
TransactionStatus Start()

member Start : unit -> TransactionStatus

Exceptions

Exception	Condition
InvalidOperationException	Cannot modify the document for either a read-only external command is being executed, or changes to the document are temporarily disabled. -or- A sub-transaction can only be active inside an open Transaction. -or- The sub-transaction was already started and has not finished yet.