System.Messaging Reference (Document! X Sample)
System.Messaging Namespace / MessageQueueInstaller Class / Rollback Method
An System.Collections.IDictionary that contains the pre-installation state of the computer.



In This Topic
    Rollback Method
    In This Topic
    When overridden in a derived class, restores the pre-installation state of the computer.
    Syntax
    'Declaration
 

    Public Overrides Sub Rollback( _
   ByVal savedState As IDictionary _
) 
    'Usage
 

    Dim instance As MessageQueueInstaller
Dim savedState As IDictionary
 
instance.Rollback(savedState)
    public override void Rollback( 
   IDictionary savedState
)
    public:
void Rollback( 
   IDictionary^ savedState
) override

    Parameters

    savedState
    An System.Collections.IDictionary that contains the pre-installation state of the computer.
    Exceptions
    ExceptionDescription
    System.ArgumentExceptionThe savedState parameter is null.-or- The saved-state System.Collections.IDictionary might have been corrupted.
    System.Configuration.Install.InstallExceptionAn exception occurred during the System.Configuration.Install.Installer.Rollback(System.Collections.IDictionary) phase of the installation. This exception is ignored and the rollback continues. However, the computer might not be fully reverted to its initial state after the rollback completes.
    Requirements

    Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

    See Also

    Reference

    MessageQueueInstaller Class
    MessageQueueInstaller Members
    Base Implementation in Rollback

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