使用可觀察到的地理坐標集合在WP7的bing地圖上繪制路線 [英]ploting route on bing maps for WP7 using an observable collection of geocoordinates
將ObservableCollection中的圖釘綁定到Bing Maps控件WP7 [英]Binding Pushpins in ObservableCollection to Bing Maps Control WP7