Gmap.net的逆地理编码

protected void Page_Load(object sender, EventArgs e)
{
   if (!Page.IsPostBack)
   {
       this.arreglarMapa();
   }
}

private void arreglarMapa()
{
   GMap1.addControl(new GControl(GControl.preBuilt.LargeMapControl));
   GMap1.enableHookMouseWheelToZoom = true;

   StringBuilder sb = new StringBuilder();
   sb.Append("function(marker, point) {");
   GLatLng latlng = new GLatLng("point");
   GInfoWindow window = new GInfoWindow(latlng, "<div style=\"height:140px;\"><blink>Loading...</blink></div>");
   sb.Append(window.ToString(GMap1.GMap_Id));
   sb.Append("}");

   GMap1.addListener(new GListener(GMap1.GMap_Id, GListener.Event.click, sb.ToString()));

   StringBuilder sb2 = new StringBuilder();
   sb2.Append("function goTo(point){");
   GLatLng point = new GLatLng("point");
   sb2.AppendFormat("{0}.setZoom(11);", GMap1.GMap_Id);
   GMove move = new GMove(1, point);
   sb2.Append(move.ToString(GMap1.GMap_Id));
   GMarker marker = new GMarker(point);
   sb2.Append(marker.ToString(GMap1.GMap_Id));
   sb2.Append("}");
   GMap1.addCustomJavascript(sb2.ToString());
}

protected string GMap1_Click(object s, GAjaxServerEventArgs e)
{
   inverseGeocodingManager igeoManager = new inverseGeocodingManager(e.point, "es");
   inverseGeocoding iGeos = igeoManager.inverseGeoCodeRequest();
   geoName geo;
   if (iGeos.geonames.Count > 0)
   {
       geo = iGeos.geonames[0];

       StringBuilder sb = new StringBuilder();
       sb.Append("<div align=\"left\">");
       sb.Append(""<b>Nearest Place "</b>");
       sb.Append("<br />");
       sb.AppendFormat("Place name: "<i>{0}"</i> ", geo.name);
       sb.Append("<br />");
       sb.AppendFormat("Point: "<i>{0}"</i>", geo.nearestPlacePoint.ToString());
       sb.Append("<br />");
       sb.AppendFormat("Elevation: "<i>{0}"</i>", geo.nearestPlaceElevation > -9000 ? geo.nearestPlaceElevation.ToString() : "No info");
       sb.Append("<br />");
       sb.AppendFormat("Country Name (Code): "<i>{0} ({1})"</i>", geo.countryName, geo.countryCode);
       sb.Append("<br />");
       sb.AppendFormat("Click point - Nearest Place distance (Km): "<i>{0}"</i>", Math.Round(geo.distance, 3));
       sb.Append("</div>");

       sb.Append("<br />");
       sb.Append("<div align=\"left\">");
       sb.Append(""<b>Click point"</b>");
       sb.Append("<br />");
       sb.AppendFormat("Point: "<i>{0}"</i>", geo.initialPoint.ToString());
       sb.Append("<br />");
       sb.AppendFormat("Elevation: "<i>{0}"</i>", geo.initialPointElevation > -9000 ? geo.initialPointElevation.ToString() : "No info");
       sb.Append("<br />");
       sb.Append("</div>");

       GInfoWindow window = new GInfoWindow(e.point, sb.ToString(), true);
       return window.ToString(e.map);
   }
   else return string.Empty;
}