Question

Google Maps on windows phone

How can I add pushpins and get directions in here.
Do I require to use JavaScript

Answer 1

Note in this method:

function addMarkers () {
    for (var i = 0; i < dataResults.features.length; i++) {
        var quake = dataResults.features[i];
        var coors = quake.geometry.coordinates;
        var latLong = new google.maps.LatLng(coors[1], coors[0]);
        var marker = new google.maps.Marker({
            position: latLong,
            map: map
            //icon: getCircle(earthquake.properties.mag)
        });
    }
}

The important part in that is when we create a marker we give it a map object, which was initialized from the div ‘mapdisplay’ so we initialize that map object here

function initialize() {
    map = new google.maps.Map(document.getElementById('mapdisplay'), {
        zoom: 3,
...

and in turn it is passed as the ‘map’ parameter in the call to:

new google.maps.Marker

This is using the returned earthquake data from the USGS and simply creating the new marker.
You can simply use a similar technique to add your own pins (ie markers), and yes – you need JavaScript : )
https://developers.google.com/maps/documentation/javascript/overlays

In order to get directions see “Displaying the DirectionsResult” at https://developers.google.com/maps/documentation/javascript/directions
or an overview at
https://developers.google.com/maps/documentation/directions/

For a working sample (it’s not win8 but it shouldn’t matter as I’m assuming you are using a Windows 8 HTML/JS application)
Get directions in new window Google maps API v3

Now with that said – you can also use Bing Maps as well and it’s quite documented for Windows 8 applications

Bing Maps for Windows Store Apps

Bing Maps SDK for Windows Store apps Samples