4

我有一个 mat-tab-group（角度材料），我希望能够从 mat-tabs 后面的代码中添加，包括其他组件。我正在使用 ComponentFactoryResolver 创建组件，但我无法通过 ViewContainerRef 将新组件添加到新的 mat-tab

html

<mat-tab-group>
 <mat-tab *ngFor="let tab of tabs"  [label]="tab.title">
  <div #test></div>
 </mat-tab>
</mat-tab-group>

后面的代码

private open(type:string):void{
 var tab = {title:'test'};
 this.tabs.push(tab);

 const factory = this.componentFactoryResolver.resolveComponentFactory(DiscountGridComponent );
 //this will add it in the end of the view
 const newComponentRef = this.viewContainerRef.createComponent(factory);
}
4

2 回答 2

4

想分享我的想法，以防它帮助其他人：

export class DynamicTabComponent implements AfterViewInit {
    public tabs = [ComponentOne, ComponentTwo];

    @ViewChild('container', {read: ViewContainerRef, static: false}) public viewContainer: ViewContainerRef;

    constructor(private componentFactoryResolver: ComponentFactoryResolver) {
    }

    public ngAfterViewInit(): void {
        this.renderComponent(0);
    }

    public tabChange(index: number) {
        setTimeout(() => {
            this.renderComponent(index);
        });
    }

    private renderComponent(index: number) {
        const factory = this.componentFactoryResolver.resolveComponentFactory(this.components[index]);
        this.viewContainer.createComponent(factory);
    }
}

模板：

<mat-tab-group (selectedIndexChange)="tabChange($event)">
    <mat-tab label="Tab" *ngFor="let component of components">
        <ng-template matTabContent>
            <div #container></div>
        </ng-template>
    </mat-tab>
</mat-tab-group>
于 2020-03-27T00:55:34.643 回答
0

我还替换了 BrowserAnimationsModule 并使用了 NoopAnimationsModule。

    export class DynamicTabComponent implements AfterViewInit {
    public tabs = [ComponentOne, ComponentTwo];

    @ViewChild('container', {read: ViewContainerRef, static: false}) public 
    viewContainer: ViewContainerRef;

    constructor(private componentFactoryResolver: ComponentFactoryResolver) {
    }

    public ngAfterViewInit(): void {
    this.renderComponent(0);
    }

    public tabChange(index: number) {
    setTimeout(() => {
        this.renderComponent(index);
    });
    }

    private renderComponent(index: number) {
    const factory = 
this.componentFactoryResolver.resolveComponentFactory(this.components[index]);
this.viewContainer.createComponent(factory);
}
}

模板 

    <mat-tab label="Tab" *ngFor="let component of components">
    <ng-template matTabContent>
        <div #container></div>
    </ng-template>
    </mat-tab>
    </mat-tab-group>

模块

 imports: [
  CommonModule,
  MaterialModuleSet,
  BrowserModule,
  RouterModule.forRoot(routes),
  AppRoutingModule,
  NoopAnimationsModule
// BrowserAnimationsModule]        removed the BrowserAnimationModule
于 2020-06-11T04:53:24.597 回答