Один backgroundworker и много методов - C# - Ответ 10425335

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
 
namespace BackgroundWorker
{
    class Program
    {
        
 
        static void Main(string[] args)
        {
            var worker1 = new System.ComponentModel.BackgroundWorker();            
            var array = new int[] {1,2,3,4,5};
            worker1.DoWork += Worker1OnDoWork;
            worker1.RunWorkerCompleted += WorkerCompleted;
 
            var tuple = new Tuple<string, string>("Задача 2", "Строка 2");
            var worker2 = new System.ComponentModel.BackgroundWorker();
            worker2.DoWork += Worker2OnDowork;
            worker2.RunWorkerCompleted += WorkerCompleted;
            
            
            worker1.RunWorkerAsync(array);
            worker2.RunWorkerAsync(tuple);
 
            Console.WriteLine("Главная нить, нажмите любую кнопку");
            Console.ReadKey();
        }
 
        private static void Worker2OnDowork(object sender, DoWorkEventArgs e)
        {
            var tuple = (Tuple<string, string>)e.Argument;
            Console.WriteLine(tuple.Item1+ " "+tuple.Item2);
            
        }
 
        private static void Worker1OnDoWork(object sender, DoWorkEventArgs e)
        {
            var arr = (int[])e.Argument;
            Console.WriteLine(String.Join(" ", arr));
            Thread.Sleep(1000);
        }
 
        private static void WorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            Console.WriteLine("Фоновая задача завершена");
            Console.ReadKey();
        }
 
    }
}