ColorConsole [Version 1.7.1000] PowerShell 2.0-Export
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation.

C:\Windows-7>Powershell get-help Get-Transaction -full

# NAME
Get-Transaction

# SYNOPSIS
Gets the current (active) transaction.

# SYNTAX
Get-Transaction [<CommonParameters>]

# DESCRIPTION
The Get-Transaction cmdlet gets an object that represents the current transaction in the session.

This cmdlet never returns more than one object, because only one transaction is active at a time. If you start one or more independent transactions (by using the Independent parameter of Start-Transaction), the most recently started transaction is active, and that is the transaction that Get-Transaction returns.

When all active transactions have either been rolled back or committed, Get-Transaction shows the transaction that was most recently active in the session.

The Get-Transaction cmdlet is one of a set of cmdlets that support the transactions feature in Windows PowerShell. For more information, see about_Transactions.

# PARAMETERS
<CommonParameters>
This cmdlet supports the common parameters: Verbose, Debug,
ErrorAction, ErrorVariable, WarningAction, WarningVariable,
OutBuffer and OutVariable. For more information, type,
"get-help about_commonparameters".

# INPUTS
None
You cannot pipe objects to this cmdlet.

# OUTPUTS
System.Management.Automation.PSTransaction
Get-Transaction returns an object that represents the current transaction.

# NOTES

# EXAMPLE 1

C:\PS>start-transaction

C:\PS> get-transaction

RollbackPreference SubscriberCount Status
------------------ --------------- ------
Error 1 Active

# Description
-----------
This command uses the Get-Transaction cmdlet to get the current transaction.

# EXAMPLE 2

C:\PS>get-transaction | get-member

Name MemberType Definition
---- ---------- ----------
Dispose Method System.Void Dispose(), System.Void Dispose(Boolean disposing)
Equals Method System.Boolean Equals(Object obj)
GetHashCode Method System.Int32 GetHashCode()
GetType Method System.Type GetType()
ToString Method System.String ToString()
IsCommitted Property System.Boolean IsCommitted {get;}
IsRolledBack Property System.Boolean IsRolledBack {get;}
RollbackPreference Property System.Management.Automation.RollbackSeverity RollbackPreference {get;}
SubscriberCount Property System.Int32 SubscriberCount {get;set;}

# Description
-----------
This command uses the Get-Member cmdlet to show the properties and methods of the transaction object.

# EXAMPLE 3

C:\PS>cd hklm:\software
HKLM:\SOFTWARE> Start-Transaction
HKLM:\SOFTWARE> New-Item MyCompany -UseTransaction
HKLM:\SOFTWARE> Undo-Transaction
HKLM:\SOFTWARE> Get-Transaction

RollbackPreference SubscriberCount Status
------------------ --------------- ----------
Error 0 RolledBack

# Description
-----------
This command shows the property values of a transaction object for a transaction that has been rolled back.

# EXAMPLE 4

C:\PS>cd hklm:\software
HKLM:\SOFTWARE> Start-Transaction
HKLM:\SOFTWARE> New-Item MyCompany -UseTransaction
HKLM:\SOFTWARE> Complete-Transaction
HKLM:\SOFTWARE> Get-Transaction

RollbackPreference SubscriberCount Status
------------------ --------------- ---------
Error 1 Committed

# Description
-----------
This command shows the property values of a transaction object for a transaction that has been committed.

# EXAMPLE 5

C:\PS>cd hklm:\software
HKLM:\SOFTWARE> Start-Transaction
HKLM:\SOFTWARE> New-Item MyCompany -UseTransaction

HKLM:\SOFTWARE> Start-Transaction
HKLM:\SOFTWARE> New-Item MyCompany2 -UseTransaction

HKLM:\SOFTWARE> Get-Transaction

RollbackPreference SubscriberCount Status
------------------ --------------- ------
Error 2 Active

HKLM:\SOFTWARE> Complete-Transaction
HKLM:\SOFTWARE> Get-Transaction

RollbackPreference SubscriberCount Status
------------------ --------------- ------
Error 1 Active

HKLM:\SOFTWARE> Complete-Transaction
HKLM:\SOFTWARE> Get-Transaction

RollbackPreference SubscriberCount Status
------------------ --------------- ---------
Error 1 Committed

# Description
-----------
This example shows the effect on the transaction object of starting a transaction while another transaction is in progress. Typically, this happens when a script that runs a transaction includes a function or calls a script that contains another complete transaction.

Unless the second Start-Transaction command includes the Independent parameter, Start-Transaction does not create a new transaction. Instead, it adds a second subscriber to the original transaction.

The first Start-Transaction command starts the transaction. A New-Item command with the UseTransaction parameter is part of the transaction.

A second Start-Transaction command adds a subscriber to the transaction. The next New-Item command is also part of the transaction.

The first Get-Transaction command shows the multi-subscriber transaction. Notice that the subscriber count is 2.

The first Complete-Transaction command does not commit the transaction, but it reduces the subscriber count to 1.

The second Complete-Transaction command commits the transaction.

# EXAMPLE 6

C:\PS>HKLM:\SOFTWARE> Start-Transaction

HKLM:\SOFTWARE> Get-Transaction

RollbackPreference SubscriberCount IsRolledBack IsCommitted
------------------ --------------- ------------ -----------
Error 1 False False

HKLM:\SOFTWARE> Start-Transaction -Independent
HKLM:\SOFTWARE> Get-Transaction

RollbackPreference SubscriberCount IsRolledBack IsCommitted
------------------ --------------- ------------ -----------
Error 1 False False

HKLM:\SOFTWARE> Complete-Transaction
HKLM:\SOFTWARE> Get-Transaction

HKLM:\SOFTWARE> Complete-Transaction
HKLM:\SOFTWARE> Get-Transaction

# Description
-----------
This example shows the effect on the transaction object of starting an independent transaction while another transaction is in progress.

The first Start-Transaction command starts the transaction. A New-Item command with the UseTransaction parameter is part of the transaction.

A second Start-Transaction command adds a subscriber to the transaction. The next New-Item command is also part of the transaction.

The first Get-Transaction command shows the multi-subscriber transaction. Note that the subscriber count is 2.

The Complete-Transaction command reduces the subscriber count to 1, but it does not commit the transaction.

The second Complete-Transaction command commits the transaction.

RELATED LINKS
Online version: http://go.microsoft.com/fwlink/?LinkID=135220
about_Transactions
about_Providers
Start-Transaction
Complete-Transaction
Undo-Transaction
Use-Transaction

C:\Windows>powershell get-help Start-Transaction -full