Angular 角度:动态组件
我按照Angular文档动态生成组件:。 这很好,但是现在我想在每个动态生成的组件周围添加一个包装器组件(稍后这个包装器应该包含一个工具栏)。但我现在不知道该怎么做 包装器组件:仍然为空,html也为空Angular 角度:动态组件,angular,Angular,我按照Angular文档动态生成组件:。 这很好,但是现在我想在每个动态生成的组件周围添加一个包装器组件(稍后这个包装器应该包含一个工具栏)。但我现在不知道该怎么做 包装器组件:仍然为空,html也为空 export class ComponentWraperComponent implements OnInit { constructor() { } ngOnInit() {} } DynamicComponentBuilderComponent动态组件 export clas
export class ComponentWraperComponent implements OnInit {
constructor() { }
ngOnInit() {}
}
DynamicComponentBuilderComponent动态组件
export class DynamicComponentBuilderComponent implements OnInit, OnChanges {
@Input() elementConfigs: IElementConfig[];
@ViewChild(DynamicComponentPlaceholderDirective, { static: true }) placeholder: DynamicComponentPlaceholderDirective;
constructor(private componentFactoryResolver: ComponentFactoryResolver, private dynamicComponentService: DynamicComponentService) { }
ngOnChanges() {
const viewContainerRef = this.placeholder.viewContainerRef;
viewContainerRef.clear();
if (this.elementConfigs && this.elementConfigs.length > 0) {
this.elementConfigs.forEach((config: IElementConfig) => {
const componentToCreate: any = this.dynamicComponentService.resolveComponent(config);
LoggingHelper.debug("DynamicComponentBuilderComponent.ngOnChanges(), interating over element configs. Building component " + config.type);
// Wrapper
const componentWraperComponentFactory = this.componentFactoryResolver.resolveComponentFactory(ComponentWraperComponent);
// Component
const ComponentWraperComponent = this.componentFactoryResolver.resolveComponentFactory(componentToCreate);
**// Here I have both. The wrapper and component. But how can I add the component into the wrapper and than add the wrapper into the viewContainerRef?**
const componentRef = viewContainerRef.createComponent(componentFactory);
});
}
}
假设您通过
将子组件放入“包装器”
@Component({
selector: 'wrapper-comp',
template: '...toolbar... <ng-content></ng-content>'
})
export class WraperComponent {}
const childFactory: ComponentFactory<ChildComponent> = factoryResolver.resolveComponentFactory(ChildComponent);
const childComp: ComponentRef<ChildComponent> = childFactory.create(this.injector);
const wrapperFactory: ComponentFactory<WraperComponent> = factoryResolver.resolveComponentFactory(WraperComponent);
const wrapperComp: ComponentRef<WraperComponent> = this.viewContainerRef.createComponent(
wrapperFactory,
0,
this.injector,
[[
childComp.location.nativeElement
]]
);