C # code for thread suspension and enabling

 

 
 

  
  
using System;  
  
  
using System.ComponentModel;  
  
  
using System.Windows.Forms;  
  
  
using System.Threading;  
  
  
 
  
  
namespace AutoResetEventTest  
  
  
{  
  
  
    public partial class Form1 : Form  
  
  
    {  
  
  
        private ManualResetEvent manualResetEvent;  
  
  
        private AutoResetEvent auto;  
  
  
        private bool suspend;  
  
  
        private AsyncOperation asyncOperation;  
  
  
 
  
  
        public delegate void InvokeDelegate(string str);  
  
  
 
  
  
        private InvokeDelegate invokeDelegate;  
  
  
        const string str = "Test";  
  
  
        private bool formClosed;  
  
  
 
  
  
        public Form1()  
  
  
        {  
  
  
            InitializeComponent();  
  
  
            manualResetEvent = new ManualResetEvent(false);  
  
  
            auto = new AutoResetEvent(true);  
  
  
            asyncOperation = AsyncOperationManager.CreateOperation(null);  
  
  
            invokeDelegate = new InvokeDelegate(this.SafeInvoke);  
  
  
            this.FormClosed += delegate 
  
  
                                   {  
  
  
                                       this.formClosed = true;  
  
  
                                       this.auto.Close();  
  
  
                                   };  
  
  
        }  
  
  
 
  
  
        private void btnStart_Click(object sender, EventArgs e)  
  
  
        {  
  
  
            this.btnStart.Enabled = false;  
  
  
            this.btnSuspend.Enabled = true;  
  
  
            ThreadPool.QueueUserWorkItem(delegate 
  
  
                                             {  
  
  
                                                 SafeInvoke();  
  
  
 
  
  
                                                 //this.BeginInvoke(invokeDelegate, new object[] { str });  
  
  
                                             });  
  
  
 &n