Latest Contributions by TracySchloss

Is it possible to create a stacked textSymbol?  If so, what is the syntax for the linebreak? ... View more

I have two layers.  I want to query staffLayer based on the a buffer of a selected feature in alertLayer.  I am looking at Select with Feature Layer | ArcGIS API for JavaScript  for an example.  The difference is I don't want a map click, I want to select the feature in alertLayer based on a row in a grid. I'm getting a feature from alertLayer with my grid click.   I then need to buffer it, then use that buffer as the input geometry for a Query on staffLayer.  I am getting as far as generating a circle based on the selected row, which draws in the correct location.  However, I'm never getting any features found in that circle, even though I see there are several in the vicinity that should be returned. I have changed this around several times, and I know I have a scope problem with the sequence of what I'm trying to do.  I started out with something more straight forward, but changed to more a lang.hitch type of syntax, which I'm still getting the hang of. I'm getting the error Uncaught TypeError: app.staffLayer.on(...).then is not a function        updateAlertGrid: function(){         var queryParams = new Query();         queryParams.geometry = app.currentExtent;         queryParams.spatialRelationship = Query.SPATIAL_REL_CONTAINS;         queryParams.outFields = ["*"];         queryParams.outSpatialReference = app.spatialReference;         var queryTask = new QueryTask(app.alertLayer.url);         queryTask.on('error', queryErrorHandler);         queryTask.execute(queryParams, lang.hitch(this, updateGridHandler));                 function updateGridHandler(results){           var data = [];           if (app.alertGrid) {             app.alertGrid.refresh();           }           data = arrayUtils.map(results.features, function(feature){             return feature.attributes;           });           var currentMemory = new Memory({             data: data,             idProperty: 'ESRI_OID'           });                     app.alertGrid.set("store", currentMemory);           app.alertGrid.sort('FlagStatusCode');           app.alertGrid.on('.dgrid-row:click', function(event){             var row = app.alertGrid.row(event);             var gridQuery = new Query();             gridQuery.objectIds = [row.data.ESRI_OID];             app.alertLayer.selectFeatures(gridQuery, FeatureLayer.SELECTION_NEW, function(results){               if (results.length > 0) {                 app.alertFeature = results[0];                 app.alertFeature.setInfoTemplate(app.alertTemplate);                 //    map.centerAndZoom(results[0].geometry,14);                  var resultGeometry = results[0].geometry;                 app.map.infoWindow.setFeatures(results);                 app.map.infoWindow.show(resultGeometry);               }               else {                 console.log("error in grid.on click function");               }             });           });           on(app.alertGrid, ".dgrid-cell:click", function(evt){             var cell = app.alertGrid.cell(evt);             var col = cell.column;             //var row = cell.row;             if (col.field === 'staff') {               //   console.log("you clicked the staff cell");               findStaffbyLocation(app.alertFeature.geometry);             }           });         }         function queryErrorHandler(err){           console.log("error in queryTask is " + err.error);         }         //functions for finding staff near a server alert         function findStaffbyLocation(geom){           var circle = new Circle({             center: geom,             geodesic: true,             radius: 50,             radiusUnit: "esriMiles"           });                     var circleSymb = new SimpleFillSymbol(SimpleFillSymbol.STYLE_NULL, new           SimpleLineSymbol(SimpleLineSymbol.STYLE_SHORTDASH, new Color([105, 105, 105]), 2), new Color([255, 255, 0, 0.25]));           var graphic = new Graphic(circle, circleSymb);           app.map.graphics.add(graphic);  //circle is added correctly around the selected row           app.map.setExtent(circle.getExtent());           var query = new Query();           query.geometry = circle.getExtent();           app.staffLayer.queryFeatures(query);                 app.staffLayer.on( 'query-features-complete', lang.hitch(this, function(response){   //there are never any features found here              var feature;             var features = response.features;             var inBuffer = [];                         //started with extent,now filter out features that are not actually within buffer             for (var i = 0; i < features.length; i++) {               feature = features;               if (circle.contains(feature.geometry)) {                 inBuffer.push(feature.attributes[ESRI_OID]);               }             }           })).then(function(){             var query = new Query();             query.objectIds = inBuffer;             var staffList = [];             app.staffLayer.selectFeatures(query, FeatureLayer.SELECTION_NEW, function(results){               arrayUtils.forEach(results, function(feature){                 staffList.push(feature.attributes.Contact_FirstName + " " + feature.attributes.Contact_LastName + "</br>");               });               alert("Staff near selected server: " + staffList);             });           });         }       } ... 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