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Hide layers in legend of dynamiclayer

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10-03-2014 05:21 AM
deleted-user-yA_w_FC9FKe5
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I am trying to hide two layers in my example provided called states and counties.  I am trying to use this code to make it happen but I am getting a rootLayer reference error.  Not sure why.

//SCRIPT5007: Unable to get property 'rootLayer' of undefined or null reference
//TOC.js, line 906 character 3

//if (serviceLayerId !== null && serviceLayerId !== undefined && w.rootLayer instanceof (ArcGISDynamicMapServiceLayer)) {

  toc.findTOCNode(StoresResultsLayer, 2).hide(); //hide States in legend

  toc.findTOCNode(StoresResultsLayer, 3).hide(); // hide counties in legend

I created a simple fiddle in hopes that it helps one of you smarter people to help me.  Thanks and happy Friday!

Edit fiddle - JSFiddle

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1 Solution

Accepted Solutions
RobertScheitlin__GISP
MVP Emeritus

Michael,

  Here is your code updated to do just that:

<head>

  <title>Map with legend</title>

  <link rel="stylesheet" href="http://js.arcgis.com/3.9/js/dojo/dijit/themes/claro/claro.css">

  <link rel="stylesheet" href="http://js.arcgis.com/3.9/js/esri/css/esri.css">

  <link rel="stylesheet" type="text/css" href="http://gmaps-utility-gis.googlecode.com/svn/tags/agsjs/latest/build/agsjs/css/agsjs.css" />

  <style>

    html,

    body {

      height: 97%;

      width: 98%;

      margin: 1%;

    }

    #rightPane {

      width: 20%;

    }

    #legendPane {

      border: solid #97DCF2 1px;

    }

  </style>

  <script>

    var dojoConfig = {

      packages: [{

          name: "agsjs",

          "location": 'http://gmaps-utility-gis.googlecode.com/svn/tags/agsjs/latest/build/agsjs' // for xdomain load 

      }]

    };

  </script>

  <script src="http://js.arcgis.com/3.9/"></script>

  <script>

    var map, layerState, layerCounty, layerCity, toc, StoresResultsLayer;

    require([

          "esri/map", "esri/layers/FeatureLayer",

          "dojo/_base/array", "dojo/parser", "agsjs/dijit/TOC", "dijit/registry",

          "dijit/layout/BorderContainer", "dijit/layout/ContentPane",

          "dijit/layout/AccordionContainer", "dojo/domReady!", "esri/layers/ArcGISDynamicMapServiceLayer", "dojo/_base/array",

        ], function (

      Map, FeatureLayer,

      arrayUtils, parser, TOC, registry, BorderContainer, ContentPane, AccordionContainer, domReady, ArcGISDynamicMapServiceLayer, array

    ) {

      parser.parse();

      map = new Map("map", {

        basemap: "oceans",

        center: [-86, 30],

        zoom: 6

      });

      layerState = new FeatureLayer("http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/2", {

        mode: FeatureLayer.MODE_ONDEMAND,

        id: 'State'

      });

      layerCounty = new FeatureLayer("http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/3", {

        mode: FeatureLayer.MODE_ONDEMAND,

        id: 'County'

      });

      var mapLoad = map.on("layers-add-result", function (evt) {

        toc = new TOC({

          map: map,

          layerInfos: [{

              layer: layerState,

              title: "States",

              collapsed: true

                    },

            {

              layer: layerCounty,

              title: "Counties"

                    }]

        }, 'legendDiv');

        toc.startup();

        toc.on('toc-node-checked', function (evt) {

          if (evt.rootLayer) {

            if (evt.rootLayer.id === "County") {

              layerCity.setVisibility(evt.checked);

            }

          }

        });

        mapLoad.remove();

      });

      map.addLayers([layerCounty, layerState]);

      var test = registry.byId("btnCities").on("click", function () {

        test.remove(); //this can only be clicked once. 

        layerCity = new FeatureLayer("http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/0", {

          mode: FeatureLayer.MODE_ONDEMAND,

          id: 'City'

        });

        var h = layerCity.on("load", function () {

          toc.layerInfos.splice(2, 0, {

            layer: layerCity,

            title: "Cities"

          });

          toc.refresh();

          h.remove();

        });

        map.addLayer(layerCity);

      });

      var test2 = registry.byId("btnStores").on("click", function () {

        var StoresResultsLayerURL = "http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer";

        var StoresResultsLayerOptions = {

          "id": "StoresResultsLayer",

          "opacity": .99,

          "showAttribution": false

        };

        StoresResultsLayer = new esri.layers.ArcGISDynamicMapServiceLayer(StoresResultsLayerURL, StoresResultsLayerOptions);

        StoresResultsLayer.setVisibleLayers([0, 1]);

        var h = StoresResultsLayer.on("load", function () {

          toc.layerInfos.splice(0, 0, {

            layer: StoresResultsLayer,

            title: "StoresResultsLayer"

          });

          toc.refresh();

          toc.on('load', function (evt) {

            toc.findTOCNode(StoresResultsLayer, 2).hide(); //hide cities in legend

            toc.findTOCNode(StoresResultsLayer, 3).hide(); // hide counties in legend

          });

          h.remove();

        });

        map.addLayers([StoresResultsLayer]);

      });

    });

  </script>

</head>

<body class="claro">

  <div id="content" data-dojo-type="dijit/layout/BorderContainer" data-dojo-props="design:'headline', gutters:true" style="width: 100%; height: 100%; margin: 0;">

    <div id="rightPane" data-dojo-type="dijit/layout/ContentPane" data-dojo-props="region:'right'">

      <div data-dojo-type="dijit/layout/AccordionContainer">

        <div data-dojo-type="dijit/layout/ContentPane" id="legendPane" data-dojo-props="title:'Legend', selected:true">

          <div id="legendDiv"></div>

          <button id="btnCities" data-dojo-type="dijit/form/Button" type="button">Add cities</button>

          <button dojoType="dijit.form.Button" id="btnStores" data-dojo-props="iconClass:'dijitIconFilter'">Get Results</button>

        </div>

        <div data-dojo-type="dijit/layout/ContentPane" data-dojo-props="title:'Pane 2'">

        </div>

      </div>

    </div>

    <div id="map" data-dojo-type="dijit/layout/ContentPane" data-dojo-props="region:'center'" style="overflow: hidden;">

    </div>

  </div>

</body>

View solution in original post

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2 Replies
RobertScheitlin__GISP
MVP Emeritus

Michael,

  Here is your code updated to do just that:

<head>

  <title>Map with legend</title>

  <link rel="stylesheet" href="http://js.arcgis.com/3.9/js/dojo/dijit/themes/claro/claro.css">

  <link rel="stylesheet" href="http://js.arcgis.com/3.9/js/esri/css/esri.css">

  <link rel="stylesheet" type="text/css" href="http://gmaps-utility-gis.googlecode.com/svn/tags/agsjs/latest/build/agsjs/css/agsjs.css" />

  <style>

    html,

    body {

      height: 97%;

      width: 98%;

      margin: 1%;

    }

    #rightPane {

      width: 20%;

    }

    #legendPane {

      border: solid #97DCF2 1px;

    }

  </style>

  <script>

    var dojoConfig = {

      packages: [{

          name: "agsjs",

          "location": 'http://gmaps-utility-gis.googlecode.com/svn/tags/agsjs/latest/build/agsjs' // for xdomain load 

      }]

    };

  </script>

  <script src="http://js.arcgis.com/3.9/"></script>

  <script>

    var map, layerState, layerCounty, layerCity, toc, StoresResultsLayer;

    require([

          "esri/map", "esri/layers/FeatureLayer",

          "dojo/_base/array", "dojo/parser", "agsjs/dijit/TOC", "dijit/registry",

          "dijit/layout/BorderContainer", "dijit/layout/ContentPane",

          "dijit/layout/AccordionContainer", "dojo/domReady!", "esri/layers/ArcGISDynamicMapServiceLayer", "dojo/_base/array",

        ], function (

      Map, FeatureLayer,

      arrayUtils, parser, TOC, registry, BorderContainer, ContentPane, AccordionContainer, domReady, ArcGISDynamicMapServiceLayer, array

    ) {

      parser.parse();

      map = new Map("map", {

        basemap: "oceans",

        center: [-86, 30],

        zoom: 6

      });

      layerState = new FeatureLayer("http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/2", {

        mode: FeatureLayer.MODE_ONDEMAND,

        id: 'State'

      });

      layerCounty = new FeatureLayer("http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/3", {

        mode: FeatureLayer.MODE_ONDEMAND,

        id: 'County'

      });

      var mapLoad = map.on("layers-add-result", function (evt) {

        toc = new TOC({

          map: map,

          layerInfos: [{

              layer: layerState,

              title: "States",

              collapsed: true

                    },

            {

              layer: layerCounty,

              title: "Counties"

                    }]

        }, 'legendDiv');

        toc.startup();

        toc.on('toc-node-checked', function (evt) {

          if (evt.rootLayer) {

            if (evt.rootLayer.id === "County") {

              layerCity.setVisibility(evt.checked);

            }

          }

        });

        mapLoad.remove();

      });

      map.addLayers([layerCounty, layerState]);

      var test = registry.byId("btnCities").on("click", function () {

        test.remove(); //this can only be clicked once. 

        layerCity = new FeatureLayer("http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/0", {

          mode: FeatureLayer.MODE_ONDEMAND,

          id: 'City'

        });

        var h = layerCity.on("load", function () {

          toc.layerInfos.splice(2, 0, {

            layer: layerCity,

            title: "Cities"

          });

          toc.refresh();

          h.remove();

        });

        map.addLayer(layerCity);

      });

      var test2 = registry.byId("btnStores").on("click", function () {

        var StoresResultsLayerURL = "http://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer";

        var StoresResultsLayerOptions = {

          "id": "StoresResultsLayer",

          "opacity": .99,

          "showAttribution": false

        };

        StoresResultsLayer = new esri.layers.ArcGISDynamicMapServiceLayer(StoresResultsLayerURL, StoresResultsLayerOptions);

        StoresResultsLayer.setVisibleLayers([0, 1]);

        var h = StoresResultsLayer.on("load", function () {

          toc.layerInfos.splice(0, 0, {

            layer: StoresResultsLayer,

            title: "StoresResultsLayer"

          });

          toc.refresh();

          toc.on('load', function (evt) {

            toc.findTOCNode(StoresResultsLayer, 2).hide(); //hide cities in legend

            toc.findTOCNode(StoresResultsLayer, 3).hide(); // hide counties in legend

          });

          h.remove();

        });

        map.addLayers([StoresResultsLayer]);

      });

    });

  </script>

</head>

<body class="claro">

  <div id="content" data-dojo-type="dijit/layout/BorderContainer" data-dojo-props="design:'headline', gutters:true" style="width: 100%; height: 100%; margin: 0;">

    <div id="rightPane" data-dojo-type="dijit/layout/ContentPane" data-dojo-props="region:'right'">

      <div data-dojo-type="dijit/layout/AccordionContainer">

        <div data-dojo-type="dijit/layout/ContentPane" id="legendPane" data-dojo-props="title:'Legend', selected:true">

          <div id="legendDiv"></div>

          <button id="btnCities" data-dojo-type="dijit/form/Button" type="button">Add cities</button>

          <button dojoType="dijit.form.Button" id="btnStores" data-dojo-props="iconClass:'dijitIconFilter'">Get Results</button>

        </div>

        <div data-dojo-type="dijit/layout/ContentPane" data-dojo-props="title:'Pane 2'">

        </div>

      </div>

    </div>

    <div id="map" data-dojo-type="dijit/layout/ContentPane" data-dojo-props="region:'center'" style="overflow: hidden;">

    </div>

  </div>

</body>

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deleted-user-yA_w_FC9FKe5
Deactivated User

Thanks Robert:  AWESOME!

Is their a simple way to copy the code you put in above into notepad++ with out the line numbers?

For those of you following at home Robert changed my example a little and I didn't want to change the way the event of my button was initiated so I just tweaked his code a little with the bolded part and it worked!!!

var h = StoresResultsLayer.on("load", function () {

         toc.layerInfos.splice(3, 0, {

            layer: StoresResultsLayer,

            title: "StoresResultsLayer"

          });

          toc.refresh();

         toc.on('load', function (evt) { 

            toc.findTOCNode(StoresResultsLayer, 0).hide(); 

            toc.findTOCNode(StoresResultsLayer, 1).hide();

   toc.findTOCNode(StoresResultsLayer, 2).hide();

          }); 

          h.remove();

        });

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