xaml Twoway binding to a property in PhoneApplicationPage code behind

Question

ok fairly simple, I have a ToggleSwitch on my page like so.

<toolkit:ToggleSwitch x:Name="togLocation" VerticalAlignment="Center"
    Style="{StaticResource gToggleSwitchStyle}" Foreground="{StaticResource brLightFont}"
    Loaded="togLocation_Loaded" IsChecked="{Binding LocationTrackingEnabled, Mode=TwoWay}"/>

in the code behind of the same page I have the following

public partial class Setup : PhoneApplicationPage
{

    public bool LocationTrackingEnabled
    {
        get { return (bool)GetValue(LocationTrackingEnabledProperty); }
        set
        {
            SetValue(LocationTrackingEnabledProperty, value);
        }
    }

    public static readonly DependencyProperty LocationTrackingEnabledProperty =
        DependencyProperty.Register("LocationTrackingEnabled",
        typeof(bool),
        typeof(Setup),
        new PropertyMetadata(false));

    // blah blah rest of the page code follows on

as you can see the default value is false so the toggleswitch.IsChecked should be false. Nope its true. Using breakpoint I check LocationTrackingEnabled and it never changes so clearly the binding does no work.

I have tried this in code behind.

DataContext = this;

I have also tried this in the xaml of the page

DataContext="{Binding RelativeSource={RelativeSource Self}}"

I have done bindings before but I can't see the issue.

Answer 1

There's no need for this to be a DependencyProperty. Just use it as a regular property. Also, check your debug output when you run-- if you have a binding issue, it will show up there.