Thread.ThreadState Property
Assembly: mscorlib (in mscorlib.dll)
The ThreadState property provides more specific information than the IsAlive property.
Important: |
|---|
| Thread state is only of interest in debugging scenarios. Your code should never use thread state to synchronize the activities of threads. |
The following code example demonstrates accessing the ThreadState of a thread.
using System; using System.Threading; class ApartmentTest { static void Main() { Thread newThread = new Thread(new ThreadStart(ThreadMethod)); newThread.SetApartmentState(ApartmentState.MTA); // The following line is ignored since // ApartmentState can only be set once. newThread.SetApartmentState(ApartmentState.STA); Console.WriteLine("ThreadState: {0}, ApartmentState: {1}", newThread.ThreadState, newThread.ApartmentState); newThread.Start(); // Wait for newThread to start and go to sleep. Thread.Sleep(300); try { // This causes an exception since newThread is sleeping. newThread.SetApartmentState(ApartmentState.STA); } catch(ThreadStateException stateException) { Console.WriteLine("\n{0} caught:\n" + "Thread is not in the Unstarted or Running state.", stateException.GetType().Name); Console.WriteLine("ThreadState: {0}, ApartmentState: {1}", newThread.ThreadState, newThread.GetApartmentState()); } } static void ThreadMethod() { Thread.Sleep(1000); } }
import System.*;
import System.Threading.*;
import System.Threading.Thread;
class ApartmentTest
{
public static void main(String[] args)
{
Thread newThread = new Thread(new ThreadStart(ThreadMethod));
newThread.set_ApartmentState(ApartmentState.MTA);
// The following line is ignored since
// ApartmentState can only be set once.
newThread.set_ApartmentState(ApartmentState.STA);
Console.WriteLine("ThreadState: {0}, ApartmentState: {1}",
newThread.get_ThreadState(),
newThread.get_ApartmentState());
newThread.Start();
// Wait for newThread to start and go to sleep.
Thread.Sleep(300);
try {
// This causes an exception since newThread is sleeping.
newThread.set_ApartmentState(ApartmentState.STA);
}
catch (ThreadStateException stateException) {
Console.WriteLine("\n{0} caught:\n" +
"Thread is not in the Unstarted or Running state.",
stateException.GetType().get_Name());
Console.WriteLine("ThreadState: {0}, ApartmentState: {1}",
newThread.get_ThreadState(),newThread.get_ApartmentState());
}
} //main
static void ThreadMethod()
{
Thread.Sleep(1000);
} //ThreadMethod
} //ApartmentTest
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, 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.
Important: