Use Feature Layer Attribute as GP Service Input

[LloydBronn]

I'm trying to click on a country layer and use the country name as input for a GP tool. I've done this with XY inputs from map clicks, but I'm having a lot of trouble getting the attribute from a feature. Do I need a query task? Here is my code snippet. When I add content to the infoWindow, it displays "Country: ${NAME}" so it's not pulling that attribute from the feature layer correctly.

var country = {};

var countriesLayer = new FeatureLayer("http://<ourserver>/arcgis/rest/services/Countries_Outline/MapServer/1");
          
          map.addLayer(countriesLayer);
          
          var content = "<b>Country</b>: ${NAME}";
              
          map.on("click", function(evt){
                         
          map.graphics.clear();
          var graphic = new Graphic(evt.mapPoint);
            
          map.graphics.add(graphic);
          map.infoWindow.setFeatures([graphic]);
            
            map.infoWindow.resize(200,200);     
          map.infoWindow.setContent(content);
          map.infoWindow.show(evt.mapPoint)
            map.infoWindow.setTitle("Forecast Reports");
            
        }); 
          
            
            var today = new Date();
            var todayISO = today.toISOString().slice(0,10).replace(/-/g,"");
            
            var link = domConstruct.create("a",{
                "class": "action", 
                "id": "reportLink",
                "innerHTML": "Forecast Report", //text that appears in the popup for the link 
                "href": "javascript: void(0);"
              }, query(".actionList", map.infoWindow.domNode)[0]);
          on(link, "click", function(){
            
            domAttr.set(dom.byId("reportLink"), "innerHTML", "Generating Report...");
            
            window.gp_chart = new Geoprocessor("http://<ourserver>/arcgis/rest/services/Generate_Forecast_Report/GPServer/CreateReport");
               
               var country = window.map.infoWindow.getSelectedFeature();
                
              var taskParams = {
                "Country":country
              };
                 
              //window.gp_chart.execute(taskParams,gpChartResultAvailable,gpChartFailure);
                 window.gp_chart.execute(taskParams);‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

[RobertScheitlin__GISP]

Lloyd,

   You have the selected feature so you just have to get the attribute fro the selected feature:

var country = window.map.infoWindow.getSelectedFeature().attributes["country"];‍‍

[LloydBronn]

OK. I keep getting this error: "Cannot read property 'Country' of undefined at HTMLAnchorElement.<anonymous>"

[RobertScheitlin__GISP]

What is the line of code that is throwing this error?

[LloydBronn]

This line. The attribute is called "NAME". 

var country = window.map.infoWindow.getSelectedFeature().attributes["NAME"];‍‍‍

I also added this for the display and it threw the same error:

var country = countriesLayer.attributes["NAME"];‍‍

[RobertScheitlin__GISP]

Lloyd,

  So is 

window.map.infoWindow.getSelectedFeature();

defined (i.e. not null).

[LloydBronn]

Yes, it's defined "country."

[RobertScheitlin__GISP]

Lloyd,

window.map.infoWindow.getSelectedFeature();

Should return a Graphic object...? Not a string.

[LloydBronn]

OK, I'm trying to return a string. I need the name of the country I'm clicking on to be passed into the GP tool params. 

[RobertScheitlin__GISP]

Lloyd,

  OK, but the 

window.map.infoWindow.getSelectedFeature();

returns a Graphic then you get the attribute you want from that Graphic using Graphic.attributes.NAME or Graphic.attributes["NAME"] to get the actual string values of the NAME attribute.