ArcGIS API for Silverlight之Web Mapping开发：根据图层属性查询、定位、高亮显示并显示标注（2）

该文是博文http://blog.youkuaiyun.com/FlexMapServer/archive/2010/12/09/6064900.aspx，的系列之二，本文是查询POI兴趣点为Point，点击定位，并用图标表示，如下：

 

 

 

查询医院后，点击datagrid中的某行，即某个医院，则定位到地图中，并显示该医院的名称。

 

托管C#代码如下：

 

private void QueryDetailsDataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e) { //MessageBox.Show(QueryDetailsDataGrid.SelectedIndex.ToString()); QueryResultData result = QueryDetailsDataGrid.SelectedItem as QueryResultData; MessageBox.Show(result.SHAPE); string[] xyPoint = result.SHAPE.Split(new Char[] { ',' }); double x = Convert.ToDouble(xyPoint[0]); double y = Convert.ToDouble(xyPoint[1]); ESRI.ArcGIS.Client.Geometry.MapPoint point = new ESRI.ArcGIS.Client.Geometry.MapPoint(x, y); MyMap.PanTo(point); GraphicsLayer graphicsLayer = MyMap.Layers["MyGraphicsLayer"] as GraphicsLayer; //string[] gpsNMEASentence = gpsNMEASentenceArray[i].Split(','); Graphic graphic = new Graphic() { Geometry = point, Symbol = GlobePictureSymbol }; graphicsLayer.Graphics.Add(graphic); ESRI.ArcGIS.Client.Symbols.TextSymbol textSymbol = new ESRI.ArcGIS.Client.Symbols.TextSymbol() { FontFamily = new System.Windows.Media.FontFamily("Arial"), Foreground = new System.Windows.Media.SolidColorBrush(Colors.Purple), FontSize = 12, Text = result.CN_NAME }; Graphic graphicText = new Graphic() { Geometry =point, Symbol = textSymbol }; graphicsLayer.Graphics.Add(graphicText); }