private void OverlayAnalystService_Complated(object sender, RequestEventArgs args)
{
JsonObject json = (JsonObject)JsonObject.Parse(args.Result);
GeometryOverlayAnalystResult result = GeometryOverlayAnalystResult.FromJson((JsonObject)json["resultGeometry"]);
lastResult = result;
GeometryOverlayAnalystArgs e = new GeometryOverlayAnalystArgs(result, args.Result, args.UserState);
if (ProcessCompleted != null)
{
ProcessCompleted(this, e);
}
}