SuperMap.Connector.Map.QueryByBounds C# (CSharp) Method

        public QueryResult QueryByBounds(string mapName, Rectangle2D bounds, QueryParameterSet queryParameterSet)
        {
            return _mapProvider.QueryByBounds(mapName, bounds, queryParameterSet);
        }

 public void QueryByBoundsTest_Error()
 {
     Map map = new Map("http://" + ip + ":8090/iserver/services/map-world/rest");
     QueryParameterSet queryParameterSet = new QueryParameterSet();
     queryParameterSet.ExpectCount = 20;
     queryParameterSet.QueryOption = QueryOption.ATTRIBUTE;
     queryParameterSet.QueryParams = new QueryParameter[1];
     queryParameterSet.QueryParams[0] = new QueryParameter("ContinentLabelError@World");
     queryParameterSet.ReturnContent = true;
     Rectangle2D bounds = new Rectangle2D();
     bounds.LeftBottom = new Point2D(0, 0);
     bounds.RightTop = new Point2D(100, 100);
     QueryResult qr = null;
     try
     {
         qr = map.QueryByBounds("世界地图", bounds, queryParameterSet);
     }
     catch (ServiceException e)
     {
         Assert.AreEqual(e.Message, "查询目标图层不存在。(ContinentLabelError@World)");
     }
 }