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Installer.OnBeforeRollback Method

Raises the BeforeRollback event.

Namespace:  System.Configuration.Install
Assembly:  System.Configuration.Install (in System.Configuration.Install.dll)

abstract OnBeforeRollback : 
        savedState:IDictionary -> unit  
override OnBeforeRollback : 
        savedState:IDictionary -> unit

Parameters

savedState
Type: System.Collections.IDictionary

An IDictionary that contains the state of the computer before the installers in the Installers property are rolled back.

This method is called before the Rollback methods of the installers in this instance's InstallerCollection are called.

Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.

The OnBeforeRollback method allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors

When overriding OnBeforeRollback in a derived class, be sure to call the base class's OnBeforeRollback method so that registered delegates receive the event.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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