query is undefined I built this code from this example page here on how to use a querytask. I changed the fieldname being used in the where clause because the field in the example doesn't exist. I tested my

[lasinh]

<script type="text/javascript">

        require([

      "esri/map",

      "esri/layers/ArcGISDynamicMapServiceLayer",

     "dojo/dom",

       "dojo/on",

      "esri/tasks/QueryTask",

      "esri/tasks/query",

      "esri/symbols/SimpleMarkerSymbol",

      "esri/InfoTemplate",

      "dojo/_base/Color",

      "dojo/domReady!"],

       function (Map,

        ArcGISDynamicMapServiceLayer,

         dom,

          on,

           QueryTask,

           Query,

           SimpleMarkerSymbol,

            InfoTemplate,

             Color,

             domReady) {

          map = new Map("map");

          var layer = new ArcGISDynamicMapServiceLayer("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/Map...");

          map.addLayer(layer);

          var pop = dojo.byId('search-text').value;

          on(dojo.byId('search-button'), "click", executeQueryTask(pop));

          //initialize query task

          queryTask = new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/Map...");

          //initialize query

          query = new esri.tasks.Query();

          query.returnGeometry = true;

          query.outFields = ["CITY_NAME", "STATE_NAME", "POP1990"];

          //initialize InfoTemplate

          infoTemplate = new InfoTemplate("${CITY_NAME}", "Name : ${CITY_NAME}<br/> State : ${STATE_NAME}<br />Population : ${POP1990}");

          //create symbol for selected features

          symbol = new SimpleMarkerSymbol();

          symbol.setStyle(SimpleMarkerSymbol.STYLE_SQUARE);

          symbol.setSize(10);

          symbol.setColor(new Color([255, 255, 0, 0.5]));

          function executeQueryTask(population) {

              //set query based on what user typed in for population;

! !

              query.where = "POP1990 >"+ population;

              //execute query

              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);

              }

          }

      });      

       </script>     

[DanPatterson_Retired · Accepted solution]

You title should be in the body of the message, it is far too long and not searchable.  Use appropriate tags to facilitate searching as well

[lasinh]

it is not work. query is undefinded

[RobertScheitlin__GISP]

Ia,

  In your code you never init a var called query. You have the proper require and the proper require alias for Query but you never var query in your code.

See line 24 on the code below.

<script type="text/javascript">
        require([
      "esri/map",
      "esri/layers/ArcGISDynamicMapServiceLayer",
    "dojo/dom",
      "dojo/on",
      "esri/tasks/QueryTask",
      "esri/tasks/query",
      "esri/symbols/SimpleMarkerSymbol",
      "esri/InfoTemplate",
      "dojo/_base/Color",
      "dojo/domReady!"],
      function (Map,
        ArcGISDynamicMapServiceLayer,
        dom,
          on,
          QueryTask,
          Query,
          SimpleMarkerSymbol,
            InfoTemplate,
            Color,
            domReady) {
          map = new Map("map");
          var query, queryTask, infoTemplate, symbol;
          var layer = new ArcGISDynamicMapServiceLayer("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/Map...");
          map.addLayer(layer);
          var pop = dojo.byId('search-text').value;
          on(dojo.byId('search-button'), "click", executeQueryTask(pop));


          //initialize query task
          queryTask = new QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/Map...");
          //initialize query
          query = new esri.tasks.Query();
          query.returnGeometry = true;
          query.outFields = ["CITY_NAME", "STATE_NAME", "POP1990"];


          //initialize InfoTemplate
          infoTemplate = new InfoTemplate("${CITY_NAME}", "Name : ${CITY_NAME}<br/> State : ${STATE_NAME}<br />Population : ${POP1990}");


          //create symbol for selected features
          symbol = new SimpleMarkerSymbol();
          symbol.setStyle(SimpleMarkerSymbol.STYLE_SQUARE);
          symbol.setSize(10);
          symbol.setColor(new Color([255, 255, 0, 0.5]));




          function executeQueryTask(population) {


              //set query based on what user typed in for population;
! !
              query.where = "POP1990 >"+ population;


              //execute query
              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);
              }
          }
      });     
      </script>