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("\nThreadState: {0}, ApartmentState: {1}",
newThread.ThreadState, newThread.ApartmentState);

newThread.Start();
Console.WriteLine("\nThreadState: {0}, ApartmentState: {1}",
newThread.ThreadState, newThread.ApartmentState);
// 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);
}
}