Bind DispatcherTimer to Progress Bar XAML WP 8.1

Question

I'm working in a WP 8.1 application (non SL) and have the following XAML code:

<Page>
    <Grid>
        <ProgressBar x:Name="TimeBar" IsIndeterminate="False" Maximum="200" Value="30" Height="10" Width="300"/>
    </Grid>
</Page>

This gives me the following:

I want to bind a timer object, so that as the time ticks and goes forward, the progress bar moves with it, until the timer stops (reaches 1 minute).

I have the following code, but it doesn't seem to work.

namespace BarWithTimer
{
    public sealed partial class MainPage : Page
    {
        public DispatcherTimer Timer;

        public MainPage()
        {
            InitializeComponent();
            Timer = new DispatcherTimer();
            Timer.Tick += TimerOnTick;
            Timer.Interval = new TimeSpan(0, 1, 0);
            Timer.Start();
            NavigationCacheMode = NavigationCacheMode.Required;
        }

        private void TimerOnTick(object sender, object o)
        {
            TimeBar.Value += 10;
        }
    }
}

Answer 1

As suggested by Jon, all I had to do was fix the interval on the timer.

Timer.Interval = new TimeSpan(0, 0, 0, 0, 50);

This now calls the Tick handler every 50 milliseconds, and I can see my progress bar moving!

Thanks Jon.