silverlight 地图初始化比例

XAML

<esri:Map x:Name="MyMap" >
	<esri:Map.Layers>
		<esri:ArcGISDynamicMapServiceLayer ID="CaliforniaLayer"
			Url="http://serverapps.esri.com/ArcGIS/rest/services/California/MapServer"
			Initialized="CaliforniaLayer_Initialized" />

Code-Behind

private void CaliforniaLayer_Initialized(object sender, EventArgs e) 
{		
	Layer layer = sender as Layer;  	
	MyMap.ZoomTo(layer.InitialExtent);
}