[英]Angular - Dynamically load html that includes angular markups
在 Angular 9+ 中,我可以成功地将字符串转换为 html,然后使用 innerHtml 和 bypassSecurityTrustHtml() 加载该 html。
我的问题是还可以动态加载/渲染转换后的 html 以包含和识别 angular/javascript 标记语言,例如 *ngIf、句柄栏和点击事件。
下面是到目前为止尝试的代码和 stackblitz,但正如您所见,它无法识别标记。
https://stackblitz.com/edit/dynamic-angular?file=app/app.component.ts
export class AppComponent implements OnInit {
text: string = "Hello world";
content: any;
constructor(private domSantizer: DomSanitizer) {}
ngOnInit() {
let body: any =
'<div>{{text}}<div><br><button (click)="test()">Test</button>';
this.content = this.domSantizer.bypassSecurityTrustHtml(body);
}
test() {
alert("It works");
}
}
Html
<div [innerHTML]="content"></div>
我研究并尝试了许多解决方案。 我的研究和试验结果如下。
html
<div #container></div>
typescript 侧如下
export class AppComponent implements OnInit {
@ViewChild("container", { read: ViewContainerRef })
container: ViewContainerRef;
constructor(private compiler: Compiler) {}
text: string = "asdasd";
ngOnInit() {
this.addComponent(
`<div>{{text}}<div><br><button (click)="test()">Test</button>
`,
{
text: "Hello word",
test: function() {
alert("It's work");
}
}
);
}
private addComponent(template: string, properties?: any = {}) {
@Component({ template })
class TemplateComponent {}
@NgModule({ declarations: [TemplateComponent] })
class TemplateModule {}
const mod = this.compiler.compileModuleAndAllComponentsSync(TemplateModule);
const factory = mod.componentFactories.find(
comp => comp.componentType === TemplateComponent
);
const component = this.container.createComponent(factory);
Object.assign(component.instance, properties);
// If properties are changed at a later stage, the change detection
// may need to be triggered manually:
// component.changeDetectorRef.detectChanges();
}
我审查过的一些帖子
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