ThreadAbortException.ExceptionState Property

Definition

Namespace:

System.Threading

Assembly:

System.Threading.Thread.dll

Source:

ThreadAbortException.cs

Gets an object that contains application-specific information related to the thread abort.

public:
 property System::Object ^ ExceptionState { System::Object ^ get(); };

public object? ExceptionState { get; }

member this.ExceptionState : obj

Public ReadOnly Property ExceptionState As Object

Property Value

Object

An object containing application-specific information.

Examples

The following code example shows how to pass information to a thread that is being aborted.

using namespace System;
using namespace System::Threading;
ref class Test
{
private:
   Test(){}


public:
   static void TestMethod()
   {
      try
      {
         while ( true )
         {
            Console::WriteLine( "New thread running." );
            Thread::Sleep( 1000 );
         }
      }
      catch ( ThreadAbortException^ abortException ) 
      {
         Console::WriteLine( dynamic_cast<String^>(abortException->ExceptionState) );
      }

   }

};

int main()
{
   Thread^ newThread = gcnew Thread( gcnew ThreadStart( &Test::TestMethod ) );
   newThread->Start();
   Thread::Sleep( 1000 );
   
   // Abort newThread.
   Console::WriteLine( "Main aborting new thread." );
   newThread->Abort( "Information from main." );
   
   // Wait for the thread to terminate.
   newThread->Join();
   Console::WriteLine( "New thread terminated - main exiting." );
}

using System;
using System.Threading;

class Test
{
    public static void Main()
    {
        Thread newThread  = new Thread(new ThreadStart(TestMethod));
        newThread.Start();
        Thread.Sleep(1000);

        // Abort newThread.
        Console.WriteLine("Main aborting new thread.");
        newThread.Abort("Information from Main.");

        // Wait for the thread to terminate.
        newThread.Join();
        Console.WriteLine("New thread terminated - Main exiting.");
    }

    static void TestMethod()
    {
        try
        {
            while(true)
            {
                Console.WriteLine("New thread running.");
                Thread.Sleep(1000);
            }
        }
        catch(ThreadAbortException abortException)
        {
            Console.WriteLine((string)abortException.ExceptionState);
        }
    }
}

Imports System.Threading

Public Class Test

    <MTAThread> _
    Shared Sub Main()
        Dim newThread As New Thread(AddressOf TestMethod)
        newThread.Start()
        Thread.Sleep(1000)

        ' Abort newThread.
        Console.WriteLine("Main aborting new thread.")
        newThread.Abort("Information from Main.")

        ' Wait for the thread to terminate.
        newThread.Join()
        Console.WriteLine("New thread terminated - Main exiting.")
    End Sub

    Shared Sub TestMethod()
        Try
            While True
                Console.WriteLine("New thread running.")
                Thread.Sleep(1000)
            End While
        Catch abortException As ThreadAbortException
            Console.WriteLine( _
                CType(abortException.ExceptionState, String))
        End Try
    End Sub

End Class

Remarks

The object returned by this property is specified through the stateInfo parameter of the Abort method. The exact content and usage of this object is application defined; it is typically used to convey information that is meaningful to the thread being aborted.

See also

• CurrentThread
• Abort(Object)
• Destroying threads