[英]Angular 2 dynamic component generation, ts compilation error
我可以使用以下方法創建動態組件:
public addItem<T extends WidgetComponent>(ngItem: {new(): T}): T {
let factory = this._componentFactoryResolver.resolveComponentFactory(ngItem);
const ref = this._viewCntRef.createComponent(factory);
const newItem: T = ref.instance as T;
...
return newItem;
}
並這樣稱呼它:
const ref: MyWidgetComponent = this.dashboard.addItem<MyWidgetComponent>(MyWidgetComponent);
但是打字稿給我帶來了這個編譯錯誤: app.component.ts:45:35 Untyped function calls may not accept type arguments.
我嘗試用Type<T>
替換{new(): T}
,但出現相同的錯誤: app.component.ts:45:35 Untyped function calls may not accept type arguments.
這里的正確定義是什么? 因為代碼效果很好...
編輯:這是完整的代碼,如果您想在原處查看它的話https://github.com/jaumard/ng2-dashboard/blob/master/components/dashboard/dashboard.dash.component#ts#L99
我設法通過將簽名更改為來修復編譯錯誤:
public addItem(ngItem: Type<WidgetComponent>): WidgetComponent
和這樣的電話:
const ref: MyWidgetComponent = this.dashboard.addItem(MyWidgetComponent) as MyWidgetComponent;
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