在使用打字稿AngularJS中的$ RESOURCE进行服务调用后，无法将数据绑定到作用域对象

Question

我从api中提取数据并尝试绑定到变量，我调试了从API获取数据的代码但是它没有绑定到范围对象这里是我的代码

服务

header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");?

这是我要调用服务和使用

的Controller代码

module application.common {
    angular.module("common.service", ["ngresource"])

   export class DataAccessService {

        static $inject = ["$resource"]; /// To avoid minificaton errors i.e prameters thgar are use to be defines and should be in order.

        constructor(private $resource: ng.resource.IResourceService,private $http:ng.IHttpService) {
        }

        getProductResource() {                      
            return this.$resource("http://localhost:50000/api/values/GetProducts", { 'query': { method: 'GET', isArray: false } }).get().$promise.then(function (response) {
                var obj = new product();
                //debugger;
                obj.title = response.title;
                obj.showImage = response.showImage;
                obj.products = response.objDetails;
                return obj;
            });            
        }        

    }

    angular.module("common.service",['ngResource']).service("dataAccessService", DataAccessService);
} 

实体：

class ProductListCtrl1 {        
        obj: IProduct;

        static $inject = ["dataAccessService"];
        constructor(private dataAccessService: application.common.DataAccessService) {

            this.obj = new product();

            dataAccessService.getProductResource().then(function (response) {
                alert('1');
                debugger;
                this.obj = response;   // I'm getting response here with all properties
            });
            alert('2  ' + this.obj.title); // This alert is firing first rather than alert 1

            this.obj.title = "Product List Type Script11"; // This is getting binded what ever properties I'm binding here are loaded 

        }
    }
var app1 = angular.module("productManagement1", ['ngRoute', 'ngResource','common.service']);

    app1.controller("ProductListCtrl1", ProductListCtrl1);

根据评论我附上我的回复对象

interface IProduct {
    title: string;
    showImage: boolean;
    products: productDetails[];
}

class product implements IProduct {
    title: string;
    showImage: boolean;
    products: productDetails[];
}