How to recognize changes of a toggleSwitch

Question

I try to handle cases depending on the current value of a toggleSwitch in Blend for Visual Studio 2015 with C#. I want to print the correct value to the debug output.

I have the following code

    public sealed partial class MainPage : Page {
    public MainPage() {
        this.InitializeComponent();

        if (toggleSwitch.IsOn == true) {
            Debug.WriteLine("On");
        }
        else {
            Debug.WriteLine("Off");
        }
    }
}

The output prints correctly that the start state of the switch is off. But if I change the value within the UI, the output stays off. No matter how often I change it.

What's the right way to recognize the value change and print it into the output? Help is very appreciated.

Answer 1

private void YourToggleSwitch_Toggled(object sender, RoutedEventArgs e){
    if (toggleSwitch.IsOn == true){
        Debug.WriteLine("On");
    }
    else{
        Debug.WriteLine("OFF");
    }
}