ThreadAbortException Class
The exception that is thrown when a call is made to the Abort method. This class cannot be inherited.
Assembly: mscorlib (in mscorlib.dll)
The ThreadAbortException type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | Data | Gets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.) |
![]() ![]() | ExceptionState | Gets an object that contains application-specific information related to the thread abort. |
![]() | HelpLink | Gets or sets a link to the help file associated with this exception. (Inherited from Exception.) |
![]() ![]() | HResult | Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception.) |
![]() ![]() | InnerException | Gets the Exception instance that caused the current exception. (Inherited from Exception.) |
![]() ![]() | Message | Gets a message that describes the current exception. (Inherited from Exception.) |
![]() | Source | Gets or sets the name of the application or the object that causes the error. (Inherited from Exception.) |
![]() ![]() | StackTrace | Gets a string representation of the immediate frames on the call stack. (Inherited from Exception.) |
![]() | TargetSite | Gets the method that throws the current exception. (Inherited from Exception.) |
| Name | Description | |
|---|---|---|
![]() ![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() ![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() ![]() | GetBaseException | When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception.) |
![]() ![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetObjectData | When overridden in a derived class, sets the SerializationInfo with information about the exception. (Inherited from Exception.) |
![]() ![]() | GetType | Gets the runtime type of the current instance. (Inherited from Exception.) In XNA Framework 3.0, this member is inherited from Object::GetType(). |
![]() ![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() ![]() | ToString | Creates and returns a string representation of the current exception. (Inherited from Exception.) |
| Name | Description | |
|---|---|---|
![]() | SerializeObjectState | Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception. (Inherited from Exception.) |
When a call is made to the Abort method to destroy a thread, the common language runtime throws a ThreadAbortException. ThreadAbortException is a special exception that can be caught, but it will automatically be raised again at the end of the catch block. When this exception is raised, the runtime executes all the finally blocks before ending the thread. Because the thread can do an unbounded computation in the finally blocks or call Thread::ResetAbort to cancel the abort, there is no guarantee that the thread will ever end. If you want to wait until the aborted thread has ended, you can call the Thread::Join method. Join is a blocking call that does not return until the thread actually stops executing.
Note |
|---|
When the common language runtime (CLR) stops background threads after all foreground threads in a managed executable have ended, it does not use Thread::Abort. Therefore, you cannot use ThreadAbortException to detect when background threads are being terminated by the CLR. |
ThreadAbortException uses the HRESULT COR_E_THREADABORTED, which has the value 0x80131530.
Note |
|---|
The value of the inherited Data property is always nullptr. |
The following example demonstrates aborting a thread. The thread that receives the ThreadAbortException uses the ResetAbort method to cancel the abort request and continue executing.
using namespace System; using namespace System::Threading; using namespace System::Security::Permissions; ref class ThreadWork { public: static void DoWork() { try { for ( int i = 0; i < 100; i++ ) { Console::WriteLine( "Thread - working." ); Thread::Sleep( 100 ); } } catch ( ThreadAbortException^ e ) { Console::WriteLine( "Thread - caught ThreadAbortException - resetting." ); Console::WriteLine( "Exception message: {0}", e->Message ); Thread::ResetAbort(); } Console::WriteLine( "Thread - still alive and working." ); Thread::Sleep( 1000 ); Console::WriteLine( "Thread - finished working." ); } }; int main() { ThreadStart^ myThreadDelegate = gcnew ThreadStart( ThreadWork::DoWork ); Thread^ myThread = gcnew Thread( myThreadDelegate ); myThread->Start(); Thread::Sleep( 100 ); Console::WriteLine( "Main - aborting my thread." ); myThread->Abort(); myThread->Join(); Console::WriteLine( "Main ending." ); }
This code produces the following output:
Thread - working. Main - aborting my thread. Thread - caught ThreadAbortException - resetting. Exception message: Thread was being aborted. Thread - still alive and working. Thread - finished working. Main ending.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

