The exception that is thrown when an attempt is made to access an unloaded application domain.
Assembly: mscorlib (in mscorlib.dll)
In the .NET Framework version 2.0, an that is not handled in user code has the following effect:
If a thread was started in managed code, it is terminated. The unhandled exception is not allowed to terminate the application.
If a task is executing on a ThreadPool thread, it is terminated and the thread is returned to the thread pool. The unhandled exception is not allowed to terminate the application.
If a thread started in unmanaged code, such as the main application thread, it is terminated. The unhandled exception is allowed to proceed, and the operating system terminates the application.
uses the HRESULT COR_E_APPDOMAINUNLOADED, which has the value 0x80131014.
For a list of initial property values for an instance of , see the AppDomainUnloadedException constructors.
This section contains two code examples. The first example demonstrates the effects of an on various threads, and the second shows elementary application domain unloading.
The following code example defines a TestClass class that can be marshaled across application domain boundaries and an Example class containing a static (Shared in Visual Basic) ThreadProc method. The ThreadProc method creates an application domain, creates a TestClass object in the domain, and calls a method of TestClass that unloads the executing domain, causing an .
The TestClass method is executed without exception handling from a ThreadPool thread and from an ordinary thread, demonstrating that the unhandled exception terminates the task or thread but not the application. It is then executed with and without exception handling from the main application thread, demonstrating that it terminates the application if not handled.
The following code example creates and unloads an application domain, and demonstrates that an is thrown on a subsequent attempt to access the unloaded domain.
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.