ThreadState Enum

Namespace: System.Threading
Assembly: System.Runtime.dll

Summary

Specifies the execution state of a thread.

public enum ThreadState

Members

Member name	Value	Description
Running	0	The thread is running and executing code.
Paused	1	The thread is paused. This state is usually not returned by the Thread.ThreadState property.
Stopped	2	The thread has terminated.
WaitSleepJoin	4	The thread is suspended because it is waiting, sleeping, or has joined another thread.
Suspended	8	The thread is suspended.
AbortRequested	16	A request to abort the thread has been made.
Background	32	The thread is a background thread.
Unstarted	64	The thread has not been started yet.
StoppedRequested	128	Indicates that the thread has terminated. This value is obsolete. Use `Stopped` instead.
StopRequested	256	A request to stop the thread has been made.
SuspendedRequested	512	A request to suspend the thread has been made.

Remarks

The ThreadState enumeration represents the possible states of a thread.

You can combine ThreadState values using the bitwise OR operator (|) to determine the current state of a thread. For example, a thread can be both Running and Suspended if it is a background thread that has been suspended.

Example

// Get the current thread's state
Thread currentThread = Thread.CurrentThread;
ThreadState state = currentThread.ThreadState;

// Check if the thread is running
if (state & ThreadState.Running == ThreadState.Running)
{
    Console.WriteLine("The thread is currently running.");
}

// Check if the thread has been suspended
if (state & ThreadState.Suspended != 0)
{
    Console.WriteLine("The thread is suspended.");
}