This documentation is archived and is not being maintained.

CannotUnloadAppDomainException Constructor (String, Exception)

Initializes a new instance of the CannotUnloadAppDomainException class with a specified error message and a reference to the inner exception that is the cause of this exception.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

CannotUnloadAppDomainException (
	String^ message, 
	Exception^ innerException
public CannotUnloadAppDomainException (
	String message, 
	Exception innerException
public function CannotUnloadAppDomainException (
	message : String, 
	innerException : Exception



The error message that explains the reason for the exception.


The exception that is the cause of the current exception. If the innerException parameter is not a null reference (Nothing in Visual Basic), the current exception is raised in a catch block that handles the inner exception.

An exception that is thrown as a direct result of a previous exception should include a reference to the previous exception in the InnerException property. The InnerException property returns the same value that is passed into the constructor, or a null reference (Nothing in Visual Basic) if the InnerException property does not supply the inner exception value to the constructor.

The following table shows the initial property values for an instance of CannotUnloadAppDomainException.




The inner exception reference.


The error message string.

using namespace System;
using namespace System::Reflection;
using namespace System::Security::Policy;

ref class Worker : MarshalByRefObject
   void TestLoad()
      // You must supply a valid fully qualified assembly name here.
      Assembly::Load("Text assembly name, Culture, PublicKeyToken, Version");
      for each (Assembly^ assem in AppDomain::CurrentDomain->GetAssemblies())

//for evidence Object*
// The following attribute indicates to loader that multiple application
// domains are used in this application.

int main()
   // Create application domain setup information for new application domain.
   AppDomainSetup^ domaininfo = gcnew AppDomainSetup;
   domaininfo->ApplicationBase = System::Environment::CurrentDirectory;
   domaininfo->ApplicationName = "MyMultiDomain Application";
   //Create evidence for the new appdomain from evidence of current application domain.
   Evidence^ adevidence = AppDomain::CurrentDomain->Evidence;
   // Create appdomain.
   AppDomain^ newDomain = AppDomain::CreateDomain( "MyMultiDomain", adevidence, domaininfo );
   // Load an assembly into the new application domain.
   Worker^ w = (Worker^) newDomain->CreateInstanceAndUnwrap(

   //Unload the application domain, which also unloads the assembly.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0