Sample of how to Suspend, Resume, Abort Threads in .Net

ActionPerformer.cs

//	deploytonenyures.blogspot.com

using System;
using System.IO;
using System.Threading;

enum Status
{
	NotStarted,
	Running,
	Suspended
}

class ActionPerformer
{
	//use this WaitHandle to signal suspend(Reset)/resume(Set) requests
	private EventWaitHandle resumeSuspend;
	private bool abort;
	private Status status;
	public ActionPerformer()
	{
		//create it in Set state, so it starts to run as we call Run
		this.resumeSuspend = new AutoResetEvent(true);
		this.status = Status.NotStarted;
		this.abort = false;
	}
	
	public void Run()
	{
		if (this.status == Status.NotStarted)
		{
			this.status = Status.Running;
			new Thread(() => {
				while(!this.abort){ //check for Abort requests
					Console.WriteLine("Performing Action");
					Thread.Sleep(500);
					this.resumeSuspend.WaitOne(); //check for Resume/Suspend requests
				}
			}).Start();
		}
	}
	
	public void Suspend()
	{
		if (this.status == Status.Running)
		{
			this.status = Status.Suspended;
			this.resumeSuspend.Reset();
			Console.WriteLine("Being Suspended");
		}
		else
		{
			Console.WriteLine("Can't be suspended if not running");
		}
	}
	
	public void Resume()
	{
		if (this.status == Status.Suspended)
		{
			this.status = Status.Running;
			this.resumeSuspend.Set();
			Console.WriteLine("Being Resumed");
		}
		else
		{
			Console.WriteLine("Can't be resumed if not suspended");
		}
	}
	
	public void Abort()
	{
		Console.WriteLine("Being Aborted");
		this.abort = true;
		if (this.status == Status.Suspended){
			//if it's suspended we have to resume it so the loop cheks for abort and stops
			this.resumeSuspend.Set();
		}
	}
}

App.cs

//	deploytonenyures.blogspot.com
//	csc App.cs ActionPerformer.cs

using System;
using System.IO;
using System.Collections.Generic;
using System.Threading;
using System.Web.Script.Serialization;

class DoCopy
{
	public static void Main(String[] args)
	{
		Console.WriteLine("Program started");
		ActionPerformer actionPerformer = new ActionPerformer();
		
		string option = "";
		Console.WriteLine("S to Suspend, R to Resume, A to Abort");
		actionPerformer.Run();
		while (option != "a")
		{
			option = Console.ReadLine().ToLower();
			switch (option)
			{
				case "a":
					actionPerformer.Abort();
					break;
				case "s":
					actionPerformer.Suspend();
					break;
				case "r":
					actionPerformer.Resume();
					break;
			}
		}
		Console.WriteLine("Press key to exit");
		Console.ReadLine();
	}
}