How to show multiple Pushpins Windows Phone 8 - windows-phone

Question

Someone pls fix this code for me. I cant show multiple pushpins :(
Or give me some link about show pushpins. Ty :)
// Creat point
GeoCoordinate p1 = new GeoCoordinate(21.0178, 105.8303);
GeoCoordinate p2 = new GeoCoordinate(21.0076, 105.8414);
// Show center map
this.myPushpins.Center = p1;
this.myPushpins.ZoomLevel = 13;
// Creat Pushpins
Pushpin pp = new Pushpin();
// Creat MapOverLap
MapOverlay overlay1 = new MapOverlay();
overlay1.Content = pp;
overlay1.GeoCoordinate = new GeoCoordinate(21.0178, 105.8303);
MapOverlay overlay2 = new MapOverlay();
overlay2.Content = pp;
overlay2.GeoCoordinate = new GeoCoordinate(21.0076, 105.8414);
// Creat Maplayer
MapLayer layer = new MapLayer();
layer.Add(overlay1);
layer.Add(overlay2);
myPushpins.Layers.Add(layer);

Answer 1

You are setting the content of both overylay1 and overylay2 to the same Pushpin object instance. You need to have two different instances of Pushpin. Try this code:
// Creat point
GeoCoordinate p1 = new GeoCoordinate(21.0178, 105.8303);
GeoCoordinate p2 = new GeoCoordinate(21.0076, 105.8414);
// Show center map
this.myPushpins.Center = p1;
this.myPushpins.ZoomLevel = 13;
// Creat Pushpins
//Pushpin pp = new Pushpin();
// Creat MapOverLap
MapOverlay overlay1 = new MapOverlay();
overlay1.Content = new Pushpin();
overlay1.GeoCoordinate = new GeoCoordinate(21.0178, 105.8303);
MapOverlay overlay2 = new MapOverlay();
overlay2.Content = new Pushpin();
overlay2.GeoCoordinate = new GeoCoordinate(21.0076, 105.8414);
// Creat Maplayer
MapLayer layer = new MapLayer();
layer.Add(overlay1);
layer.Add(overlay2);
myPushpins.Layers.Add(layer);
Or even better to have some function to display your pins
public void PinMap(Map map, GeoCoordinate geoPosition) {
map.Center = geoPosition;
map.ZoomLevel = 13;
var mapOverlay = new MapOverlay();
mapOverlay.Content = new Pushpin();
mapOverlay.GeoCoordinate = geoPosition;
var mapLayer = new MapLayer();
mapLayer.Add(mapOverlay);
map.Layers.Add(mapLayer);
}
PinMap(myMap, new GeoCoordinate(21.0178, 105.8303));
PinMap(myMap, new GeoCoordinate(21.0076, 105.8414));