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ThreadInterruptedException Class

The exception that is thrown when a Thread is interrupted while it is in a waiting state.

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

'Declaration
<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public Class ThreadInterruptedException _
	Inherits SystemException
'Usage
Dim instance As ThreadInterruptedException

After a thread is created, it is in one or more ThreadState states until it is destroyed. Calling Interrupt when a thread is in the WaitSleepJoin state will cause a ThreadInterruptedException to be thrown in the target thread. If the thread is not in the WaitSleepJoin state, the exception is not thrown until the thread enters that state. If the thread never blocks, it could complete without ever being interrupted.

ThreadInterruptedException uses the HRESULT COR_E_THREADINTERRUPTED, which has the value 0x80131519.

For a list of initial property values for an instance of ThreadInterruptedException, see the ThreadInterruptedException constructors.

The following code example shows the behavior of a running thread when it is interrupted and subsequently gets blocked.

Option Explicit
Option Strict

Imports System
Imports System.Security.Permissions
Imports System.Threading

<Assembly: SecurityPermissionAttribute(SecurityAction.RequestMinimum, _
    ControlThread := True)>

Public Class ThreadInterrupt

    <MTAThread> _
    Shared Sub Main()
        Dim stayAwake As New StayAwake()
        Dim newThread As New Thread(AddressOf stayAwake.ThreadMethod)
        newThread.Start()

        ' The following line causes an exception to be thrown  
        ' in ThreadMethod if newThread is currently blocked 
        ' or becomes blocked in the future.
        newThread.Interrupt()
        Console.WriteLine("Main thread calls Interrupt on newThread.")

        ' Tell newThread to go to sleep.
        stayAwake.SleepSwitch = True 

        ' Wait for newThread to end.
        newThread.Join()
    End Sub 

End Class 

Public Class StayAwake

    Dim sleepSwitchValue As Boolean = False 

    WriteOnly Property SleepSwitch As Boolean 
        Set
            sleepSwitchValue = Value
        End Set 
    End Property  

    Sub New()
    End Sub 

    Sub ThreadMethod()
        Console.WriteLine("newThread is executing ThreadMethod.")
        While Not sleepSwitchValue

            ' Use SpinWait instead of Sleep to demonstrate the  
            ' effect of calling Interrupt on a running thread.
            Thread.SpinWait(10000000)
        End While 
        Try
            Console.WriteLine("newThread going to sleep.")

            ' When newThread goes to sleep, it is immediately  
            ' woken up by a ThreadInterruptedException.
            Thread.Sleep(Timeout.Infinite)
        Catch ex As ThreadInterruptedException
            Console.WriteLine("newThread cannot go to " & _
                "sleep - interrupted by main thread.")
        End Try 
    End Sub 

End Class

System.Object
  System.Exception
    System.SystemException
      System.Threading.ThreadInterruptedException

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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

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.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
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