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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来调用rest服务

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在父（ParentComponent）中加载所有父数据onInit方法 . 现在，如果我点击单个父级，它会通过将parentId从ParentComponent传递给ParentDetailComponent来触发子视图，而ParentDetailComponent会调用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？

儿童模板：

<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
}
angular angular2-services angular2-components

3 回答

  • 0

    你可以使用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
                });
}

    还可以在此处查看更多详细信息 .

    回复于
  • 0

    您必须为此@Input [在您的详细信息组件中]使用事件 Launcher ，该值将从产品页面传递 . 这会将产品链接到他们的详细信息页面，然后详细信息页面将接受输入，并且在其ngOnInit上，它将调用将加载详细信息的Service方法 .

    所有这一切都必须在Modal i中完成：如果你想使用角度材料，这将解决你的问题 .

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

    如果你有一个吸烟者或尝试过这个问题，请更新 .

    回复于
  • 0

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

    回复于

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