BackgroundWorker - C#

using System;
using System.ComponentModel;
using System.Threading;

namespace Background_Worker
{
    class Program
    {
        static BackgroundWorker worker = new BackgroundWorker();
        static void Main()
        {
            // these methods will be called and run work asynchronous
            worker.DoWork += DoSomething;
            worker.DoWork += DoBlaBla;

            worker.RunWorkerCompleted += (sender, e) =>
            {
                Console.ForegroundColor = ConsoleColor.Green;
                Console.WriteLine("Work complreted");
                //Console.ReadLine(); // Wait here!
            };
            worker.ProgressChanged += (object sender, ProgressChangedEventArgs e) =>
            {
                Console.WriteLine(e.ProgressPercentage);
            };
            worker.WorkerReportsProgress = true;
            worker.RunWorkerAsync("Bla bla bla"); // call method DoSomething then BoBlabla aynchronous
            Console.ReadLine();
        }

        static void DoSomething(object sender, DoWorkEventArgs e)
        {
            BackgroundWorker obj = sender as BackgroundWorker;
            Console.WriteLine("=================================================");
            Console.WriteLine("Do something: " + e.Argument);
            Console.WriteLine("Sent from: " + sender);
            Console.WriteLine("=================================================");
            obj.ReportProgress(50, "Completed");
        }
        static void DoBlaBla(object sender, DoWorkEventArgs e)
        {
            Console.WriteLine();
            Console.WriteLine("=================================================");
            Console.WriteLine("Bla bla bla... " + e.Argument);
            Console.WriteLine("Sent from: " + sender);
            Console.WriteLine("=================================================");
            worker.ReportProgress(100, "Progress completed successfully!");
        }
    }
}