//中心点查询 private void point_DrawCompleted(object sender, DrawEventArgs e) { QueryParam queryParam = new QueryParam(); QueryLayer queryLayer = new QueryLayer(); queryLayer.LayerName = comboBox.SelectionBoxItem.ToString(); List<QueryLayer> queryLayers = new List<QueryLayer> { queryLayer }; queryParam = new QueryParam() { ExpectCount = 0, QueryLayers = queryLayers, StartRecord = 0 }; //将文本中读取的容限值转换为Double类型,如果值为0则将其设为100 double tolerance; if (!double.TryParse(MyTextBox.Text, out tolerance)) { tolerance = 100; } QueryByCenterParameters parameters = new QueryByCenterParameters { MapName = "changchun", CenterPoint = e.Geometry.Bounds.Center, Tolerance = tolerance, QueryParam = queryParam }; if (FindNearest.IsChecked == true) { parameters.IsNearest = true; } //与服务器交互 QueryByCenterService query = new QueryByCenterService("http://localhost/IS/AjaxDemo"); query.ProcessAsync(parameters); query.Failed += new EventHandler<ServiceFailedEventArgs>(query_Failed); query.ProcessCompleted += new EventHandler<QueryServiceEventArgs>(query_ProcessCompleted); featuresLayer.MouseLeftButtonDown+=new EventHandler<FeatureMouseButtonEventArgs>(featuresLayer_MouseLeftButtonDown); }
private void point_DrawCompleted(object sender, DrawEventArgs e) { Pushpin pushPin = new Pushpin(); pushPin.Location = e.Geometry.Bounds.Center; elementsLayer.AddChild(pushPin); QueryByCenterParameters queryParameters = new QueryByCenterParameters() { MapName = "changchun", Tolerance = 100, IsNearest = true, QueryParam = new QueryParam() { QueryAllLayer = false, QueryLayers = new List<QueryLayer>() { new QueryLayer() { LayerName = "RoadNet@changchun" } }, HasGeometry = true, ReturnShape = true, ExpectCount = 1, } }; queryParameters.CenterPoint = e.Geometry.Bounds.Center; QueryByCenterService queryService = new QueryByCenterService("http://localhost/IS/AjaxDemo"); queryService.ProcessAsync(queryParameters); queryService.ProcessCompleted += new EventHandler<QueryServiceEventArgs>(queryService_ProcessCompleted); }