Question

我试图在关闭对话框后实现函数调用，但是我不能使用管道也不能订阅它。让我们看看我的代码。

我收到此错误：

Type 'Observable<any>' is not assignable to type 'MatDialogRef<any, any>'.   Property '_overlayRef' is missing in type 'Observable<any>'

想法是在关闭对话框时调用函数this.windowScrolling.disable ();

@Injectable({
  providedIn: 'root'
})
export class NavegarService {
  public offsets: number[];

   windowScrolling: WindowScrollingService;

  constructor(private router: Router,
              private activatedRoute: ActivatedRoute,
              windowScrolling: WindowScrollingService,
              public dialogRef: MatDialogRef <any, any>,
              private dialog: MatDialog) {

    this.windowScrolling = windowScrolling;
    this.offsets = this.range( 1, 20 );
  }

  navegarContext(url: string, event: any = null) {
    this.router.navigate([url], {queryParams: {context: this.activatedRoute.snapshot.queryParams['context']}});
  }

  navegar(url: string, event: any = null) {
    this.router.navigate([url]);
  }

  abrirModal(component: ComponentType<any>, dados: any, event: any = null): MatDialogRef<any, any> {
    this.windowScrolling.disable();
    return this.dialog.open(component, {minWidth: '90%', disableClose: true, data: dados, position: {top: '4%'}}).afterClosed()
      .pipe(); // got error here
  }

  private range( from: number, to: number ): number[] {
    const values = [];
    for ( let i = from ; i <= to ; i++ ) {
      values.push( i );
    }
    return( values );
  }
}

Answer 1

错误消息几乎完全说明了问题所在：您从方法返回的对象不是正确的类型。

要解决此问题，我们需要创建并存储新对话框，然后创建订阅，最后返回刚刚创建的对话框对象。

SELECT
  customerid
 ,SUM(requests) sumDay
 ,created_timestamp
FROM yourTable
GROUP BY 
  customerid,
  created_timestamp
HAVING SUM(requests) >= 10000;

对话框关闭后的Angular 6调用函数

1 个答案: