public enum MappingDeviceLocationNavigationMode : System.Enum, System.IComparable, System.IConvertible, System.IFormattable, System.ISpanFormattable  

{
    //Gets the current device location options used by the MapDeviceLocationService
    var options = MapDeviceLocationService.Instance.GetDeviceLocationOptions();
    //Device location visibility on the map
    var visibility = options.DeviceLocationVisibility;
    //MappingDeviceLocationNavigationMode
    var navMode = options.NavigationMode;
    //Heading of the location from the device points to the top of the screen
    var trackUp = options.TrackUpNavigation;
    //Show accuracy buffer on the map
    var showBuffer = options.ShowAccuracyBuffer;
}

{
    //Note: Run within a QueuedTask
    //Check there is a source first...
    if (DeviceLocationService.Instance.GetSource() == null)
        //Setting DeviceLocationOptions w/ no Device Location Source
        //Will throw an InvalidOperationException
        return;

    if (!MapDeviceLocationService.Instance.IsDeviceLocationEnabled)
        //Setting DeviceLocationOptions w/ no Device Location Enabled
        //Will throw an InvalidOperationException
        return;

    MapDeviceLocationService.Instance.SetDeviceLocationOptions(
      new MapDeviceLocationOptions()
      {
          DeviceLocationVisibility = true,
          NavigationMode = MappingDeviceLocationNavigationMode.KeepAtCenter,
          TrackUpNavigation = true
      });
}

{
    // Get the MapDeviceLocationOptions currently used by the MapDeviceLocationService

    var currentOptions = MapDeviceLocationService.Instance.GetDeviceLocationOptions();
    if (currentOptions == null)
        return;
    // Set the device location visibility on the map to true
    currentOptions.DeviceLocationVisibility = true;
    //Set the navigation mode to keep the device location at the center of the map
    currentOptions.NavigationMode = MappingDeviceLocationNavigationMode.KeepAtCenter;
    //Note: Run within a QueuedTask
    //Sets the MapDeviceLocationOptions to be updates with these values
    MapDeviceLocationService.Instance.SetDeviceLocationOptions(currentOptions);
}