MANUALREASETEVENT VS AUTORESETEVENT

 MANUALREASETEVENT VS AUTORESETEVENT

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace ManualResetEvent_
{
    class Program
    {
        static ConsoleColor prevColor = Console.ForegroundColor;
        static AutoResetEvent autoreset = new AutoResetEvent(false);        //declaring Autoreset event and markes it as static so all class can share it
        static ManualResetEvent manualreset = new ManualResetEvent(false);  //declaring Manualreset event and markes it as static so all class can share it

        static void Main(string[] args)
        {
            Console.Title = "AutoResetEvent and ManualResetEvent Example";
            Thread t1 = new Thread(new ThreadStart(AutoResetMethod));       //AutoResetEvent is the method which will start  when the thread starts
            Thread t2 = new Thread(new ThreadStart(ManualResetMethod));     //ManualResetEvent is the method which will start when the thread starts
            t1.Name = "Thread1";
            t2.Name = "Thread2";
            Thread.CurrentThread.Name = "Main Thread";

            //t1.Start();
            t2.Start();

            Console.ReadLine();
            Console.WriteLine("Thread1 is paused for the main t1");
            Console.ForegroundColor = ConsoleColor.Magenta;
            Console.WriteLine("\t\t\t Running the Thread {0}", Thread.CurrentThread.Name);
            Console.ForegroundColor = ConsoleColor.Green;
            Console.WriteLine("Executing task of the Main Thread");
            for (int i = 0; i < 5; i++)
            {
                Console.Write("{0}", i);
                Thread.Sleep(1000);
            }

            Console.WriteLine();
            Console.WriteLine("Task Completed on Main Thread");

            manualreset.Set();
           // autoreset.Set();

            Console.ReadLine();
            Console.ForegroundColor=ConsoleColor.Magenta;
            Console.WriteLine("\t\t\t Running Thread :{0}",Thread.CurrentThread.Name);
            Console.ForegroundColor=ConsoleColor.Green;
            Console.WriteLine("Thread1 Paused for task2");
            Console.WriteLine("Doing some work in Main Thread......");
            manualreset.Set();     // Please Uncomment this while using ManualResetEvent. 
            //autoreset.Set();        // Please Uncomment this while using AutoResetEvent. 
            Console.ForegroundColor = prevColor;  
            }

        static void AutoResetMethod()
        {
            Console.ForegroundColor=ConsoleColor.Cyan;
            Console.WriteLine("\t\t************** AutoResetEvent *****************\t\t");
            Console.ForegroundColor=ConsoleColor.Magenta;
            Console.WriteLine("\t\t\t Running the Thread {0} ", Thread.CurrentThread.Name);
            Console.ForegroundColor=ConsoleColor.Yellow;
            Console.WriteLine("Executing the Task");
            Console.WriteLine("Press Enter to Pause task");
            autoreset.WaitOne();
            Console.ForegroundColor = ConsoleColor.Magenta; 
            Console.WriteLine("\t\t\tRunning Thread: {0}", Thread.CurrentThread.Name); 
            Console.ForegroundColor = ConsoleColor.Yellow; 
            Console.WriteLine("\n==================================="); 
            Console.WriteLine("Executing Task1....."); 
            for (int i = 0; i < 5; i++) 
            { 
                Console.WriteLine("Task1 executing....."); 
                Thread.Sleep(1000); 
            }             
            Console.WriteLine("Execution of Task1 completed.."); 
            Console.WriteLine("==================================="); 
            Console.WriteLine(); 
            Console.WriteLine("===================================");
            Console.WriteLine("Executing Task2......"); 
            Console.WriteLine("Press Enter to Pause Task2.."); 
            //Wait for second task: 
            autoreset.WaitOne(); 
            Console.ForegroundColor = ConsoleColor.Magenta; 
            Console.WriteLine("\t\t\tRunning Thread: {0}", Thread.CurrentThread.Name); 
            Console.ForegroundColor = ConsoleColor.Yellow; 
            Console.WriteLine("Execution of Task2 completed..."); 
            Console.WriteLine("==================================="); 
            Console.ForegroundColor = prevColor;  
        }

        static void ManualResetMethod()
        {
            Console.ForegroundColor = ConsoleColor.Cyan; 
            Console.WriteLine("\t\t***************** ManualResetEvent ***************"); 
            Console.ForegroundColor = ConsoleColor.Magenta;
            Console.WriteLine("\t\t\tRunning Thread: {0}", Thread.CurrentThread.Name); 
            Console.ForegroundColor = ConsoleColor.Yellow; 
            Console.WriteLine("Executing Task1......"); 
            Console.WriteLine("Press Enter to Pause Task1..");  
             manualreset.WaitOne(); 
            Console.ForegroundColor = ConsoleColor.Magenta; 
            Console.WriteLine("\t\t\tRunning Thread: {0}", Thread.CurrentThread.Name); 
            Console.ForegroundColor = ConsoleColor.Yellow; 
            Console.WriteLine("\n==================================="); 
            Console.WriteLine("Executing Task1....."); 
            for (int i = 0; i < 5; i++) 
            { 
                Console.WriteLine("Task1 executing....."); 
                Thread.Sleep(1000); 
            } 
            Console.WriteLine("Execution of Task1 completed.."); 
            Console.WriteLine("==================================="); 
            Console.WriteLine(); 
            Console.WriteLine("==================================="); 
            Console.WriteLine("Executing Task2......"); 
            Console.WriteLine("Press Enter to Pause Task2.."); 
            //Wait for second task: 
            manualreset.WaitOne(); 
            Console.ForegroundColor = ConsoleColor.Magenta; 
            Console.WriteLine("\t\t\tRunning Thread: {0}", Thread.CurrentThread.Name); 
            Console.ForegroundColor = ConsoleColor.Yellow; 
            Console.WriteLine("Execution of Task2 completed..."); 
            Console.WriteLine("==================================="); 
            Console.ForegroundColor = prevColor;  
        }



        }
    }

When we use AutoResetEvent, for every WaitOne(), we must call Set(). But when we use ManualResetEvent() 1 Set() will revoke all the WaitOne() in our program.

thanks -Abhishek Yadav --http://www.c-sharpcorner.com/UploadFile/ff0d0f/autoresetevent-and-manualresetevent-in-C-Sharp/