我的子组件如何在Angular 2中的父组件上调用方法?

假设我有一些父组件，称为MatchList，它提供了Hero对象的列表以及其他内容.每个Hero对象都具有某些表中显示的属性.现在，假设每个Hero都有一个按钮，用于更新路线，加载新视图并显示更多详细信息.

Suppose I have some parent component, call it MatchList, that presents a list of Hero objects, among other things. Each Hero object has properties that are shown in some table. Now suppose I also have a button for each Hero that updates the route, loads a new view, and shows more details.

之前

http://heroic.com/match-list

之后

http://heroic.com/hero-84

问题

我的基本问题是:我想从我的MatchList模板中的按钮调用路由器的navigate()方法，但是当我尝试这样做时会收到以下错误:

Problem

My problem essential is this: I want to call the router's navigate() method from a button in my MatchList template, but I receive the following error when I attempt to do so:

例外:评估"click"时出错:BrowserDomAdapter.logError @ ... angular2.dev.js:21835原始​​异常:TypeError:l_context.setPath不是函数... angular2.dev.js:21835 TypeError:l_context.setPath不是...的函数...

EXCEPTION: Error during evaluation of "click"BrowserDomAdapter.logError @ ... angular2.dev.js:21835 ORIGINAL EXCEPTION: TypeError: l_context.setPath is not a function... angular2.dev.js:21835 TypeError: l_context.setPath is not a function at ...

换句话说:看来我无法在子模板中引用父组件的路由器方法.

In other words It looks like I cannot reference the parent component's router methods in the child template.

那么，Angular 2中子组件访问父组件(或上下文")方法的正确和最佳方法是什么?

So, what is the correct and best way in Angular 2 for a child component access the methods of the parent component ( or 'context')?

如果该解决方案比以前更清洁，我会更愿意

I'd prefer if the solution was something cleaner than

class parent {

     child: Child;

     constructor(...) {

        ...

        this.child.parent = this;

     }
}

示例代码

编辑 我将模板按钮更改为

Sample Code

EDIT I changed my template button to

(^click)="setPath(match.match_id)"

我不再收到错误消息，但是什么也没发生-我什至没有控制台日志来确认点击.

I am not longer receiving an error message, but nothing happens - I don't even get a console log confirming the click.

到目前为止我的摘要.

//父母

    @Component({
        selector: 'dota-app',
        directives: [Home, MatchesView, ROUTER_DIRECTIVES],
        templateUrl: 'AppView.html'
    })
    @RouteConfig([
        { path: '/', component: Home, as: 'Home' },
        { path: '/matches', component: MatchesView, as: 'Matches' },
        { path: '/match-details', component: MatchDetailsView, as: 'MatchDetails'}
    ])
    export class RootDotaComponent {

        router: Router;

        constructor(router: Router) {

            this.router = router;

        }

        public setPath(linkParams: any[]|string): void {

            if (typeof linkParams === "string")
                linkParams = [linkParams];

            this.router.navigate(<any[]>linkParams);

        }

    }

}

//孩子

@Component({
    selector: 'matches-view',
    providers: [DotaRestDao],
})
@View({
    templateUrl: './components/MatchesView/MatchesView.html',
    directives: [CORE_DIRECTIVES]
})
export class MatchesView {

    public result;

    private dataService: DotaRestDao;

    constructor(dataService: DotaRestDao) {

        this.result = { matches: [] };

        this.dataService = dataService;

        this.dataService.getData({
            baseUrl: DotaRestDao.MATCH_HISTORY_BASE
        }).subscribe(
            res => this.result = res.result,
            err => console.log("something wrongable", err),
            () => console.log('completed')
        );

    }

}

//模板

<table class="table">
              ...
    <button (click)="setPath(match.match_id)">Match Detail Route</button>
</table>