How to add Dispatcher timer in for loop? - windows-phone-7

Question

I have to add Dispatcher timer in for loop.I have a multiple pushpin buttons and at run time i wants to retrieve this pushpin buttons in some time interval so how to add dispatcher timer in my loop...
my C# code is....
for (int i = 0; i <= ClsGetDeviceMap.lstLongLatitude.Count - 1; i++)
{
string lat, lon;
lat = ClsGetDeviceMap.lstLatitude.ElementAt<string>(i).Trim();
lon = ClsGetDeviceMap.lstLongLatitude.ElementAt<string>(i).Trim();
Latitude = Convert.ToDouble(lat);
LongLatitude = Convert.ToDouble(lon);
GpsSpeed = 44.21811;
map1.Center = new GeoCoordinate(Latitude, LongLatitude, GpsSpeed);
map1.ZoomLevel = 17;
map1.ZoomBarVisibility = Visibility.Visible;
pin[i] = new Pushpin();
pin[i].Location = new GeoCoordinate(Latitude, LongLatitude);
map1.Children.Add(pin[i]);
myCoorditeWatcher = new GeoCoordinateWatcher(GeoPositionAccuracy.High);
myCoorditeWatcher.MovementThreshold = 20;
//DispatcherTimer newTimer = new DispatcherTimer();
//newTimer.Interval = TimeSpan.FromSeconds(5);
//// newTimer.Tick += map1.Children.Add(pin[i]);
//newTimer.Start();
var gl = GestureService.GetGestureListener(pin[i]);
gl.Hold += new EventHandler<GestureEventArgs>(GestureListener_Hold);
gl.Tap += new EventHandler<GestureEventArgs>(GestureListener_Stack_Tap);
myCoorditeWatcher.PositionChanged += new EventHandler<GeoPositionChangedEventArgs<GeoCoordinate>>(myCoorditeWatcher_PositionChanged);
}
timer = new DispatcherTimer();
timer.Interval = TimeSpan.FromMilliseconds(5000);
timer.Tick += new EventHandler(timer_Tick);
timer.Start();
}

Answer 1

newTimer.Tick += () =>
{
map1.Children.Add(pin[i]);
// probably you need to stop this timer after one tick
//newTimer.Stop();
};