@H_301_1@我现在有以下模板
<project-form [nextId]="projects.length" (newProject)="addProject($event)"></project-form> <project-list [projects]="projects"></project-list>
在ProjectAppComponent中.
class ProjectAppComponent {
projects: Project[] = [
{ id: 0,title: "Build the issue tracker" },{ id: 1,title: "Basecamp" },]
addProject(project: Project) {
this.projects.push(project);
}
}
ProjectAppComponent具有项目数组和将新项目推入其中的方法.我想为项目表单和项目列表创建子路由,这样我就可以执行/ projects / new和/ projects / show来显示表单或列表.我创建了这样的路线配置 –
@Component({
template: `
<div>
<router-outlet></router-outlet>
</div>
`,directives: [ RouterOutlet ]
})
@RouteConfig([
{ path: '/list',name: 'ProjectList',component: ProjectListComponent,useAsDefault: true },{ path: '/new',name: 'ProjectForm',component: ProjectFormComponent },])
class ProjectAppComponent {
projects: Project[] = [
{ id: 0,]
addProject(project: Project) {
this.projects.push(project);
}
}
对于ProjectAppComponent类本身.现在的问题是我不知道如何将项目数组(模板中的[projects] =“projects”)传递给ProjectListComponent,因为< project-list>选择器不再使用(必须使用< router-outlet>). ProjectListComponent依赖于@Input()项目：Project来渲染所有项目.我该如何解决这个问题？这是项目列表组件 –
@Component({
selector: 'project-list',template: `
<ul>
<project-component *ngFor="#project of projects" [project]="project"></project-component>
</ul>
`,directives: [ProjectComponent]
})
class ProjectListComponent {
@Input() projects: Project[];
}
解决方法
你不能只使用一项服务吗？
import {Injectable} from 'angular2/core';
import {Project} from '...';
@Injectable()
export class ProjectService {
public projects: Project[] = [
{ id: 0,];
addProject(...args): number {
return this.projects.push(new Project(...args));
}
}
