Hello All,

I'm wrestling with a bit of a puzzle related to scoping in the code below.  Setting up the menu items and their onClick handlers works fine, but when I try to call the same showBasemap() method during postCreate() that the onClick uses, I'm unable to find the menu item.

Thanks for any help!

--john

define(["dojo/_base/declare","dijit/_WidgetBase", "dijit/_TemplatedMixin",  "dijit/_WidgetsInTemplateMixin", "dijit/_OnDijitClickMixin", "dijit/Toolbar", "dijit/form/Button", "dojo/_base/lang", "dojo/_base/array", "dijit/form/DropDownButton", "dijit/Menu", "dijit/ToolbarSeparator", "dijit/MenuItem", "dijit/CheckedMenuItem",  "dojo/text!./templates/BasemapToolbar.html"],

   function(declare, _WidgetBase, _TemplatedMixin, _WidgetsInTemplateMixin, _OnDijitClickMixin, Toolbar, Button, lang, array, DropDownButton, Menu, ToolbarSeparator, MenuItem, CheckedMenuItem, template ){

       return declare([_WidgetBase, _TemplatedMixin, _WidgetsInTemplateMixin, _OnDijitClickMixin], {

           templateString: template,

           _basemaps: null,

           baseClass: "basemapToolbar",

           layerCollection: null,

           //constructor for parent called before constructor of child class

           constructor: function(arguments) {

               this.layerCollection = arguments.layerCollection;

               this._basemaps = this.layerCollection.basemaps;

           },

           showBasemap: function(selectedIndex) {

               //only one basemap showing at a time

               array.forEach(this._basemaps, function(basemap, idx) {

                   if (selectedIndex == idx) {

                       array.forEach(basemap.services, function(targetId){

                           this.layerCollection.getLayerById(targetId).setVisibility(true);

                           this.basemapMenu.getChildren()[idx].containerNode.style.fontWeight = "bold";

                       }, this);

                   } else {

                       array.forEach(basemap.services, function(targetId){

                           this.layerCollection.getLayerById(targetId).setVisibility(false);

                           this.basemapMenu.getChildren()[idx].containerNode.style.fontWeight = "normal";

                       }, this);

                   }

               }, this);

           },

           postCreate: function() {

               //add menu items to basemap menu

               array.forEach(this._basemaps, function(item, idx) {

                   this._addBasemapMenuItem(this.basemapMenu, item, idx, this);

                   if (item.default) {

                      //throws exception re: undefined menuItem

                      this.showBasemap(idx);

                   }

                }, this);

           },

           _addBasemapMenuItem: function(menu, item, idx, parent) {

               menu.addChild(new MenuItem({

                   label: item.label,

                   onClick: function() {

                       parent.showBasemap(idx);

                   }

               }));

           }

       });

   }

);