Simple search feature and zoom to it

MarcoAmaya2 · ‎06-25-2013

Hello
i am new in javascript, and i only have to do is , in a layer (POINT) make a search by one atributte and zoom to result (only one)    in my basemap and draw a symbol to show the location of it.

in my code you can put the value, and find the attributes but the zoom to the results doesnt work. i used an example and modify it.
Thank you

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=7, IE=9, IE=10">
    
    <meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no">
    <title>Display Find Task results in Dojo DataGrid</title>

    <link rel="stylesheet" href="http://serverapi.arcgisonline.com/jsapi/arcgis/3.5/js/dojo/dijit/themes/claro/claro.css">
    <link rel="stylesheet" href="http://serverapi.arcgisonline.com/jsapi/arcgis/3.5/js/dojo/dojox/grid/resources/Grid.css">
    <link rel="stylesheet" href="http://serverapi.arcgisonline.com/jsapi/arcgis/3.5/js/dojo/dojox/grid/resources/claroGrid.css">
    <link rel="stylesheet" href="http://serverapi.arcgisonline.com/jsapi/arcgis/3.5/js/esri/css/esri.css">
    <style>
      html, body { height: 100%; width: 100%; margin: 0; padding: 0; }
    </style>

    <script>var dojoConfig = { parseOnLoad:true }</script>
    <script src="http://serverapi.arcgisonline.com/jsapi/arcgis/3.5/"></script>
    <script>
      dojo.require("esri.map");
      dojo.require("dojox.grid.DataGrid");
      dojo.require("dojo.data.ItemFileReadStore");
      dojo.require("esri.tasks.find");
      dojo.require("dijit.layout.BorderContainer");
      dojo.require("dijit.layout.ContentPane");
      dojo.require("dijit.form.Button");

      var findTask, findParams;
      var map, center, zoom;
      var grid, store;

      function init() {
        dojo.connect(grid, "onRowClick", onRowClickHandler);

        //center = [-83.266, 42.568];
        //zoom = 11;
            center = [-87.246, 14.098];
        zoom = 13;
        map = new esri.Map("map");
        var layer = new esri.layers.ArcGISTiledMapServiceLayer("http://196.196.196.196/arcgis/rest/services/basemap/MapServer");
        map.addLayer(layer);

        //map.addLayer(baseMapLayer);

        //Create Find Task using the URL of the map service to search
        findTask = new esri.tasks.FindTask("http://196.196.196.196/ArcGis/rest/services/onlythefeature/MapServer");

        dojo.connect(map, "onLoad", function() {
          //Create the find parameters
          findParams = new esri.tasks.FindParameters();
          findParams.returnGeometry = true;
          findParams.layerIds = [0];
    findParams.searchFields = ["THEID"];
          //findParams.searchFields = ["OWNERNME1","OWNERNME2"];
          findParams.outSpatialReference = map.spatialReference;
          console.log("find sr: ", findParams.outSpatialReference);
        });
      }

      function doFind() {
        //Set the search text to the value in the box
        findParams.searchText = dojo.byId("ownerName").value;
        findTask.execute(findParams,showResults);
      }

      function showResults(results) {
        //This function works with an array of FindResult that the task returns
        map.graphics.clear();
        var symbol = new esri.symbol.SimpleMarkerSymbol().setStyle(esri.symbol.SimpleMarkerSymbol.STYLE_SQUARE).setColor(new dojo.Color([255,0,0,0.5]));
        //new esri.symbol.SimpleFillSymbol(esri.symbol.SimpleFillSymbol.STYLE_SOLID, new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, new dojo.Color([98,194,204]), 2), new dojo.Color([98,194,204,0.5]));
                    // new esri.symbol.SimpleMarkerSymbol(esri.symbol.SimpleMarkerSymbol.STYLE_SQUARE, 10,   new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID,    new dojo.Color([255,0,0]), 1),   new dojo.Color([0,255,0,0.25]));
        //create array of attributes
        var items = dojo.map(results,function(result){
          var graphic = result.feature;
          graphic.setSymbol(symbol);
          map.graphics.add(graphic);
          return result.feature.attributes;
        });

        //Create data object to be used in store
        var data = {
          identifier: "THEID", //This field needs to have unique values
          label: "THEID", //Name field for display. Not pertinent to a grid but may be used elsewhere.
          items: items
        };

         //Create data store and bind to grid.
        store = new dojo.data.ItemFileReadStore({ data:data });
        var grid = dijit.byId('grid');
        grid.setStore(store);

        //Zoom back to the initial map extent
        map.centerAndZoom(center, zoom);
      }

      //Zoom to the parcel when the user clicks a row
      function onRowClickHandler(evt){
        var clickedTaxLotId = grid.getItem(evt.rowIndex).THEID;
        var selectedTaxLot;

        dojo.forEach(map.graphics.graphics,function(graphic){
          if((graphic.attributes) && graphic.attributes.THEID === clickedTaxLotId){
            selectedTaxLot = graphic;
            return;
          }
        });
        var taxLotExtent = selectedTaxLot.geometry.getExtent();
        map.setExtent(taxLotExtent);
      }

      dojo.ready(init);
    </script>
</head>
<body class="claro">
<div data-dojo-type="dijit.layout.BorderContainer" data-dojo-props="design:'headline'" style="width:100%;height:100%;margin:0;">
    <div data-dojo-type="dijit.layout.ContentPane" data-dojo-props="region:'top'" style="height:40px;">
      ID Number: <input type="text" id="ownerName" size="60" value="1234567" />
      <button data-dojo-type="dijit.form.Button" data-dojo-props='onClick:function(){ doFind();}, value:"Search"'>
        search
      </button>
    </div>
    <div id="map" data-dojo-props="region:'center'" data-dojo-type="dijit.layout.ContentPane" style="border:1px solid #000;"></div>
    <div data-dojo-type="dijit.layout.ContentPane" data-dojo-props="region:'bottom'" style="height:150px;">
     <table data-dojo-type="dojox.grid.DataGrid" data-dojo-id="grid" id="grid" data-dojo-props="rowsPerPage:'5', rowSelector:'20px'">
      <thead>
        <tr>
          <th field="THEID">ID Number</th>
          <th field="NAME" width="100%">Client Name</th>
        </tr>
      </thead>
    </table>
    </div>
</div>
</body>
</html>

VinayBansal · ‎06-26-2013

Try creating extent from point by providing some factor.

if (feature.geometry.type == "point") {
                    var factor = 100;
                    var geom = feature.geometry;
                    var extent = new esri.geometry.Extent({ "xmin": geom.x - factor, "ymin": geom.y - factor, "xmax": geom.x + factor, "ymax": geom.y + factor, "spatialReference": { "wkid": 102100} });
map.setExtent(extent);
                }