我可以在C#中使我的Silverlight Bing地图接受鼠标点击并将其转换为Pushpin。现在我想在Pushpin旁边显示一个文本作为描述,当鼠标悬停在标记上时出现,我不知道如何做到这一点。有哪些方法可以让我完成这件事?
以下是C#代码:
public partial class MainPage : UserControl
私有变量MapLayer m_PushpinLayer;
public MainPage()
{
InitializeComponent();
base.Loaded += OnLoaded;
}
private void OnLoaded(object sender, RoutedEventArgs e)
{
base.Loaded -= OnLoaded;
m_PushpinLayer = new MapLayer();
x_Map.Children.Add(m_PushpinLayer);
x_Map.MouseClick += OnMouseClick;
}
private void AddPushpin(double latitude, double longitude)
{
Pushpin pushpin = new Pushpin();
pushpin.MouseEnter += OnMouseEnter;
pushpin.MouseLeave += OnMouseLeave;
m_PushpinLayer.AddChild(pushpin, new Location(latitude, longitude), PositionOrigin.BottomCenter);
}
private void OnMouseClick(object sender, MapMouseEventArgs e)
{
Point clickLocation = e.ViewportPoint;
Location location = x_Map.ViewportPointToLocation(clickLocation);
AddPushpin(location.Latitude, location.Longitude);
}
private void OnMouseLeave(object sender, MouseEventArgs e)
{
Pushpin pushpin = sender as Pushpin;
// remove the pushpin transform when mouse leaves
pushpin.RenderTransform = null;
}
private void OnMouseEnter(object sender, MouseEventArgs e)
{
Pushpin pushpin = sender as Pushpin;
// scaling will shrink (less than 1) or enlarge (greater than 1) source element
ScaleTransform st = new ScaleTransform();
st.ScaleX = 1.4;
st.ScaleY = 1.4;
// set center of scaling to center of pushpin
st.CenterX = (pushpin as FrameworkElement).Height / 2;
st.CenterY = (pushpin as FrameworkElement).Height / 2;
pushpin.RenderTransform = st;
}
}