Pun*_*rma 2 angular-module angular-components angular
我的应用程序中有两个模块。一个是雇主,第二个是登陆。我在登陆模块中创建了一个组件,我想与雇主模块共享这个组件。为此,我在父模块的 app.module.ts 中声明了这个组件,并在子模块中使用它们。
如果我在单个模块中使用它,它已经在工作,但是当我在不同的模块中共享它时,它会显示错误
student-rating.component.html 和 student-rating.component.ts
<div class="stu_profile_ratings">
<h3>Average Ratings</h3>
<!-- <rating [(ngModel)]="performance" [disabled]="false" [readonly]="true" [required]="true">
</rating> -->
<a (click)="showHideDrop();"> <img src ="../../../assets/images/drop-down-arrow-white.png" /></a>
<div *ngIf="showRatings" class="ratings_dropdown ">
<h4>Ratings given by verified employers</h4>
<ul class="marginT10">
<li>
<h5>Performance</h5>
<!-- <rating [(ngModel)]="performance" [disabled]="false" [readonly]="true" [required]="true"></rating> -->
</li>
<li>
<h5>Work Quality</h5>
<!-- <rating [(ngModel)]="work_quality" [disabled]="false" [readonly]="true" [required]="true"></rating> -->
</li>
<li>
<h5>Professionalism</h5>
<!-- <rating [(ngModel)]="professionalism" [disabled]="false" [readonly]="true" [required]="true"></rating> -->
</li>
</ul>
</div>
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import { Component, OnInit ,Input, ChangeDetectorRef} from '@angular/core';
declare var $: any;
@Component({
selector: 'app-student-ratings',
templateUrl: './student-ratings.component.html',
styleUrls: ['./student-ratings.component.css']
})
export class StudentRatingsComponent implements OnInit {
showRatings : boolean = false;
@Input() performance:string;
@Input() work_quality:string;
@Input() professionalism:string;
constructor() { }
ngOnInit() { }
showHideDrop(){
this.showRatings = !this.showRatings;
}
}
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登陆.module.ts --->它不包含任何关于student-rating.component.ts的组件。

这些是 app.module.ts 的声明
<div class="stu_profile_ratings">
<h3>Average Ratings</h3>
<!-- <rating [(ngModel)]="performance" [disabled]="false" [readonly]="true" [required]="true">
</rating> -->
<a (click)="showHideDrop();"> <img src ="../../../assets/images/drop-down-arrow-white.png" /></a>
<div *ngIf="showRatings" class="ratings_dropdown ">
<h4>Ratings given by verified employers</h4>
<ul class="marginT10">
<li>
<h5>Performance</h5>
<!-- <rating [(ngModel)]="performance" [disabled]="false" [readonly]="true" [required]="true"></rating> -->
</li>
<li>
<h5>Work Quality</h5>
<!-- <rating [(ngModel)]="work_quality" [disabled]="false" [readonly]="true" [required]="true"></rating> -->
</li>
<li>
<h5>Professionalism</h5>
<!-- <rating [(ngModel)]="professionalism" [disabled]="false" [readonly]="true" [required]="true"></rating> -->
</li>
</ul>
</div>
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一个组件只能在一个模块中声明,如果你需要在另一个模块中使用它,从你声明它的模块导出它,然后在你想使用它的模块中导入该模块,
例如,您有一个名为 AComponent 的组件,您有三个模块(module1、module2 和 appModule)。
@NgModule({
declarations: [AComponent],
exports: [AComponent]
});
export class module1;
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现在,如果您需要在 module2 中使用此组件,则无需在 module2 中声明该组件,而是在 module2 中导入 module1,
@NgModule({
imports: [module1]
})
export class module2;
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有关更多信息,请参阅官方文档https://angular.io/guide/sharing-ngmodules
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