Hi all,I am trying to create an application that allows users to query a layer and return only the graphics based on their selection, not only highlight the selected graphics.Form instance, In my case, I want to query by users. As shown below I have a blue hashed polygon that represents Calmap users, in red I have "unknown users". My goal here is therefore to create a simple query that only returns the blue hashed polygon or red hashed polygon. I have used this example but first it returns an error and also it will not return the exact same symbology as the feature layer I am using (is there a way to do that?). var gp, map, toc, dynaLayer1, query, queryTask; var geocoder; var symbol, infoTemplate, extractMethod; var AOI, graphic, clipFeatureSet, clipFeature; require(["dojo/_base/connect", "dojo/dom", "dojo/dom-style", "dojo/parser", "dojo/on", "dojo/_base/Color", "esri/map", "esri/config", "esri/dijit/HomeButton", "esri/dijit/BasemapGallery", "esri/dijit/Bookmarks", "esri/dijit/Scalebar", "esri/geometry/Extent", "esri/tasks/query", "esri/tasks/QueryTask", "esri/layers/FeatureLayer", "esri/layers/ArcGISTiledMapServiceLayer", "esri/layers/ArcGISDynamicMapServiceLayer", "esri/symbols/SimpleFillSymbol", "esri/symbols/SimpleLineSymbol", "esri/InfoTemplate", "esri/tasks/FeatureSet", "esri/graphic", "agsjs/dijit/TOC", "dijit/registry", "dijit/layout/BorderContainer", "dijit/layout/ContentPane", "dijit/layout/AccordionContainer", "dijit/TitlePane", "dijit/form/CheckBox", "dijit/form/ComboBox", "dojo/parser", "dijit/Toolbar", "dijit/form/DropDownButton", "dijit/layout/TabContainer", "dijit/form/TextBox", "dijit/TooltipDialog", "dijit/ToolbarSeparator", "dojo/domReady!" ], function (connect, dom, domStyle, parser, on, Color, Map, esriConfig, HomeButton, BasemapGallery, Bookmarks, Scalebar, Extent, Query, QueryTask, FeatureLayer, ArcGISTiledMapServiceLayer, ArcGISDynamicMapServiceLayer, SimpleFillSymbol, SimpleLineSymbol, InfoTemplate, FeatureSet, Graphic, TOC, registry) { // call the parser to create the dijit layout dijits parser.parse(); // note djConfig.parseOnLoad = false; // Specify where the location of the proxy to use to communicate with the extract GP service. esriConfig.defaults.io.proxyUrl = "/proxy"; // Keep a reference to the loading icon DOM node. var loading = dom.byId("loading"); map = new Map("map", { logo: true, sliderPosition: "top-right", basemap: "topo", center: [-121.469, 38.556], zoom: 8 }); var home = new HomeButton({ map: map }, "HomeButton"); home.startup(); var basemapGallery = new BasemapGallery({ showArcGISBasemaps: true, map: map }, "basemapGallery"); basemapGallery.startup(); var bookmarks = new Bookmarks({ map: map, bookmarks: [], editable: true }, dom.byId('bookmarks')); var scalebar = new Scalebar({ map: map, // "dual" displays both miles and kilmometers // "english" is the default, which displays miles // use "metric" for kilometers scalebarUnit: "dual", scalebarStyle: "ruler", attachTo: "bottom-left" }); dynaLayer1 = new ArcGISDynamicMapServiceLayer("http://webgisdevint1/arcgis/rest/services/Alex_Try/Archived/MapServer", {}); map.on('layers-add-result', function (evt) { dynaLayer1.setVisibleLayers([1, 2, 4]); toc = new TOC({ map: map, layerInfos: [{ layer: dynaLayer1, title: "Layers", slider: true }] }, 'tocdiv'); toc.startup(); }); map.addLayers([dynaLayer1]); symbol = new SimpleFillSymbol(SimpleFillSymbol.STYLE_SOLID, new SimpleLineSymbol(SimpleLineSymbol.STYLE_SOLID, new Color([111, 0, 255]), 2), new Color([255, 255, 0, 0.25])); infoTemplate = new InfoTemplate("${OBJECTID}", "${*}"); registry.byId("query").on("click", executeQuery); function executeQuery(name) { var name = document.getElementById("user").value var queryTask = new QueryTask("http://webgisdevint1/arcgis/rest/services/Alex_Try/Archived/MapServer/0"); queryTask.on("complete", showResults) var query = new Query(); query.returnGeometry = true; query.outFields = ["LAST_EDITED_USER"]; query.where = "LAST_EDITED_USER = '" + name + "'"; query.outSpatialReference = map.spatialReference; queryTask.execute(query, showResults); } function showResults(featureSet) { //remove all graphics on the maps graphics layer map.graphics.clear(); //Performance enhancer - assign featureSet array to a single variable. var resultFeatures = featureSet.features; //Loop through each feature returned for (var i=0, il=resultFeatures.length; i<il; i++) { //Get the current feature from the featureSet. //Feature is a graphic var graphic = resultFeatures; graphic.setSymbol(symbol); //Set the infoTemplate. graphic.setInfoTemplate(infoTemplate); //Add graphic to the map graphics layer. map.graphics.add(graphic); } }
The error I get is:"Cannot read property 'length' of undefined"
Thank you,Alex[ATTACH=CONFIG]34956[/ATTACH]
