Bind HeartRate to UWP ViewModel

MicrosoftBand_UWPVM_HeartRateBinding.cs

/// <summary>
/// Receives new heart rate and sets <see cref="HeartRate"/>
/// </summary>
private void OnHeartRate( object sender, EventArgs e )
{
    MsBandHeartRateEventArgs args = e as MsBandHeartRateEventArgs;
    if( args != null )
    {
        _uiFactory.StartNew( () =>
        {
            this.HeartRate = args.HeartRate;
        } );
    }
}