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AppDomain.DomainUnload Event

Occurs when an AppDomain is about to be unloaded.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
public event EventHandler DomainUnload

Implements

_AppDomain.DomainUnload

The EventHandler delegate for this event can perform any termination activities before the application domain is unloaded.

Each application domain that needs to perform processing when it is unloaded should register an event handler for this event. A shared event handler should not be used, because the EventHandler delegate does not identify the domain that is being unloaded.

NoteNote

This event is never raised in the default application domain.

Do not make assumptions about the thread the event is raised on. The event can be raised on a different thread than the one that called the Unload method.

To register an event handler for this event, you must have the required permissions, or a SecurityException is thrown.

For more information about handling events, see Consuming Events.

.NET Framework

Supported in: 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 Phone 8.1, Windows Phone 8, 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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