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Question 17: You are developing an application by using Silverlight 4 and Microsoft.NET Framework 4.You add a BackgroundWorker object named worker to the application.
You add the following code segment. (Line numbers are included for reference only.)
01 public MainPage()
02 {
03 InitializeComponent()
04 worker.WorkerSupportsCancellation = true
05 worker.DoWork += new DoWorkEventHandler(worker_DoWork)
06 worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(worker_Completed)
07 }
08 private void worker_DoWork(object sender, DoWorkEventArgs e)
09 {
10 for (int i = 0
i < 100
i++) {
11 InvokeLongRunningProcessStep()
