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angular - 刷新 HTML 组件 Angular 6

转载 作者:行者123 更新时间:2023-12-02 12:21:52 24 4
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我正在使用 Angular 6,我有以下组件

MainComponent.ts 在 ngOnInit 上有以下代码:

ngOnInit() {
console.log('OnInit');
this.route.params.subscribe(params => {
if (params['id'] != null) {
this.id= params['id']
}
});
}

然后是 MainComponent.HTML

<DataComponent [id]="id"></DataComponent>
<TableComponent [id]="id"></TableComponent>
<FieldComponent [id]="id"></FieldComponent>

路线是:http://localhost:4200/Data/77

一切都很完美,直到我需要克隆或更改 ID,所以我需要 MainComponent 刷新所有 ID。我做了以下代码:

this.router.navigate(['/Data', result.id_cloned_data]);

编辑:路线

const appRoutes: Routes = [
{
path: 'Formula/:idFormula',
component: FormulaMainComponent,
pathMatch: 'full'
},
{ path: 'Formula', component: FormulaMainComponent, pathMatch: 'full' },
{ path: '', component: FormulaMainComponent, pathMatch: 'full' }
];

URL 更改为,例如:http://localhost:4200/Data/399但 MainComponent 不刷新。我做了一个 EventEmitter 将新 ID 传递给 MainComponent,但它仍然不起作用,而且我已经尝试过 AppRoutes onSameUrlNavigation: 'reload'。

我做错了什么?是不是要重新加载,让每个组件调用其Get from API?

最佳答案

变体 1:

public bookId$: Observable<string> // 'id' is bad name for variable, remember about code readability;

ngOnInit() {
this.bookId$ = this.activatedRoute.paramMap.pipe(
map((param) => {
return param.get('BOOK_ID');
}),
);
}

组件模板:

<DataComponent [bookId]="bookId$ | async"></DataComponent>
<TableComponent [bookId]="bookId$| async"></TableComponent>
<FieldComponent [bookId]="bookId$ | async"></FieldComponent>.

变体 2:

1)DataComponent的模板:

<router-outlet></router-outlet>

2)路由器配置示例:

  {
children: [
{
component: DataChildComponent,
path: ':BOOK_ID',
},
],
component: DataComponent,
path: 'Data',
},

3)DataChildComponent的模板:

<DataComponent [bookId]="bookId$ | async"></DataComponent>
<TableComponent [bookId]="bookId$| async"></TableComponent>
<FieldComponent [bookId]="bookId$ | async"></FieldComponent>

4)DataChildComponent:

public bookId$: Observable<string>;

ngOnInit() {
this.bookId$ = this.activatedRoute.paramMap.pipe(
map((param) => {
return param.get('BOOK_ID');
}),
);
}

希望对你有帮助!

关于angular - 刷新 HTML 组件 Angular 6,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/58371842/

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