Map tap event / mouse down event in windows phone 8?

Question

I am using the windows phone emulator. I wrote a very simple program: draw a marker on the map when the user tap the map once.

Then I used map_tap event, and get the tap

Answer 1

The GestureEventArgs.GetPosition() method takes a parameter specifying what UIElement to get the coordinate relative to (see the MSDN documentation). So, try doing

Point p = e.GetPosition(map);

instead.