angular 2 - 在 div 上单击,将对象传递给另一个组件,另一个组件使用该对象调用 rest 服务

angular 2 - on div click, pass object to another component and another component uses that object to call rest service

在父组件(ParentComponent)加载所有父数据的onInit方法。现在,如果我单击单个父级,它会通过将 parentId 从 ParentComponent 传递到 ParentDetailComponent 来触发子视图,而 ParentDetailComponent 调用 ParentDetailService 并获取 IParent 对象。现在我尝试使用 *ngIf 来显示 ParentDetailComponent 模板,但它没有触发。我该如何触发子视图?

子模板:

<div *ngIf="DetailIsVisible" id="detailModal" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
<div class="modal-dialog">
    <div class="modal-content">
        <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;  </button>
            <h4 class="modal-title" id="myModalLabel">Parent Detail</h4>
        </div>
        <div class="modal-body">
            <div *ngIf="parent">
                <h2>{{parent.name}} details!</h2>
                <div><label>id: </label>{{parent.Id}}</div>
                <div>
                    <label>name: </label>
                    <label>{{parent.name}}</label>
                </div>
                <div>
                    <label>Education: </label>
                    <label>{{parent.education}}</label>
                </div>
            </div>
        </div>
        <div class="modal-footer">
            <button type="button" class="btn btn-default" (click)="hideDetail()">Close</button>
        </div>
    </div>
</div>

子组件:

@Component({
selector: 'app-parent-detail',
templateUrl: './child.component.html',
providers: [ParentDetailService]
})
export class ParentDetailComponent{
parentId: string;
parent: IParent;
public DetailIsVisible: boolean;

constructor(private _parentDetailService: ParentDetailService) {
}

show(parentId: string) {
    this.serviceDetail = serviceId;
 this._parentDetailService.getParentServiceDetail(this.parentId).subscribe(parent => {
        this.parent = parent[0];
        console.log(this.parent);
    });

}

hideDetail() {
    this.DetailIsVisible = false;
}

}

父模板:

div class="container">
<div class="row">
    <div class="col-sm-4" *ngFor="let parent of parents" (click)="selectedServiceDetail(parent.Id)" data-target="#detailModal">
        <div class="panel panel-primary" >
            <div class="panel-heading">{{parent.Id}}</div>
            <div class="panel-body"><img [src]="parent.thumbnailpath"
                                         class="img-responsive" style="width:100%; height: 200px" [title] = 'parent.name' alt="Image"></div>
            <div class="panel-footer">{{parent.name}}</div>
        </div>
    </div>
</div>


父组件:

 @Component({
selector: 'app-parent',
templateUrl: './parent.component.html',
providers: [ParentDetailService]
 })
 export class ParentComponent implements OnInit {
/**all rest api and assign to array of catalog*/

     public parents: IParent[];
     public DetailIsVisible: boolean;
     @ViewChild(ParentDetailComponent) detailModal: ParentDetailComponent;

constructor(private _parentService: ParentService) {
}

ngOnInit(): void {
    this._parentService.getParents()
        .subscribe(
            parents => this.parents = parents
        );
    this.detailModal.DetailIsVisible = false;
}

    public selectedServiceDetail(parentId): void {

    this.detailModal.DetailIsVisible = true;
    this.detailModal.show(parentId); ---> this triggers ChildComponent method to fetch parent detail service
}

您可以使用 mdDialog。

 openNewDetailModal(productObj: any): void {
            const dialogRef = this.dialog.open(DetailsComponent);
            dialogRef.componentInstance.album = this.selectedAlbumObj;
            dialogRef.afterClosed().subscribe(
                (result: boolean) => {
                   // do anything after close modal
                });
}

also see more details here click does this help!

您必须为此 @Input 使用事件发射器 [在您的详细信息组件中] 值将从产品页面传递。 这将 link 产品到他们的详细信息页面,然后详细信息页面将接受输入并在其 ngOnInit 上调用将加载详细信息的服务方法。

如果您愿意,所有这些都必须在模式 i:e 中使用 angular material 完成,这将解决您的问题。

https://material.angular.io/components/component/dialog

如果您有一个 plunker 或尝试过一些解决此问题的方法,请更新。

以上解决方案对我有用。问题是 CSS。我创建了自己的 css class 以获得弹出窗口的感觉