unexpected code execution

Question

hello,  in the following code 

                  

                                             

   

private void Window_Loaded(object sender, RoutedEventArgs e)

{

// check if any kinect is available

if (Sensors.Count == 0)

{   

   MessageBox.Show("no sensor is available for listening !!");

   Application.Current.Shutdown();

}

 ///

/// 

 

PromptBuilder pb1 = new PromptBuilder();

pb1.AppendText("HELLO", System.Speech.Synthesis.PromptVolume.Loud);

this.speaker(pb1);

 

}

the last three lines are executed even though the ' if ' condition is satisfied! can anyone explain me why ? i think the application should shutdown .