我能够让我的 silverlight Bing 地图接受 Mousclicks 并将它们转换为 C# 中的图钉。现在我想在 PushPin 旁边显示一个文本作为当鼠标移过 pin 时出现的描述,我不知道该怎么做。有什么方法可以让我做这件事?
这是 C# 代码:
public partial class MainPage : UserControl
{ 私人地图层 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;
}
}