When implemented in a derived class, executes when the system is shutting down. Specifies what should occur immediately prior to the system shutting down.
Protected Overridable Sub OnShutdown
to specify the processing that occurs when the system shuts down. OnShutdown
This event occurs only when the operating system is shut down, not when the computer is turned off.
is expected to be overridden when the OnShutdown property is CanShutdown . true .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.