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Using a BackgroundWorker

<Window x:Class="BackgroundWorkerExample.MyWindow"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     Title="BackgroundWorkerExample" Height="300" Width="300">     <Grid>              </Grid> </Window> //File:Window.xaml.cs using System; using System.Collections.Generic; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Shapes; using System.ComponentModel; using System.Threading; namespace BackgroundWorkerExample {     partial class MyWindow : Window     {         BackgroundWorker bw = new BackgroundWorker();         public MyWindow()         {             bw.DoWork += new DoWorkEventHandler(bw_DoWork);             bw.ProgressChanged += bw_ProgressChanged;             bw.RunWorkerCompleted += bw_RunWorkerCompleted;             bw.WorkerReportsProgress = true;             bw.RunWorkerAsync();         }         void bw_DoWork(object sender, DoWorkEventArgs e)         {             for (int i = 0; i < 10; ++i)             {                 int percent = i * 10;                 bw.ReportProgress(percent);                 Thread.Sleep(1000);             }         }         void bw_ProgressChanged(object sender, ProgressChangedEventArgs e)         {             this.Title = "Working: " + e.ProgressPercentage + "%";         }         void bw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)         {             this.Title = "Finished";         }     } }