Question

我想防止在角度6中删除列表的第一个ID。您有适合我的曲目吗？我有一个允许我删除当前ID的功能：

在我的组件html中：

<div class="col-12">
      <table class="mat-table">
        <thead>
        <tr class="mat-row no-border">
          <th class="mat-header-cell ">{{'etat.titre'|translate}}</th>
          <th class="mat-header-cell text-center">{{'common.date'|translate}}</th>
          <th class="mat-header-cell text-center">{{'etat.majPar'|translate}}</th>
          <th class="mat-header-cell text-center">{{'common.suppression'|translate}}</th>
        </tr>
        </thead>
        <tbody>
        <tr class="mat-row no-border" *ngFor="let element of dossier.etreAEtat">
          <td class="mat-cell ">{{element.nom}}</td>
          <td class="mat-cell text-center">{{element.date | date : 'dd/MM/yyyy'}}</td>
          <td class="mat-cell text-center">{{element.nomUtilisateur}} {{element.prenomUtilisateur}}</td>
          <td class="mat-cell mat-column-suppression">
            <mat-icon class="blue-theme example-icon logo-piece-delete" svgIcon="logo-piece-delete" (click)="onClickDeleteEtat(element.id)"></mat-icon>
          </td>
        </tr>
        </tbody>
      </table>
    </div>

在我的控制器中：

onClickDeleteEtat(id: number) {

    // Ouverture d'une pop-up de de demande de confirmation de suppression
    const confirmSuppressionDialog = this.dialog.open(DialogConfirmViewComponent, {
      panelClass: EtatComponent.panelCssClass,
      disableClose: true,
      data: {dialogText: 'common.confirm-suppression', confirmText: 'oui', cancelText: 'non'}
    });
    confirmSuppressionDialog.afterClosed().subscribe(result => {

      // Confirmation de la supppression
      if (result === 'true') {
        const params: RemoveEtatDossierParams = {
          idEtreAEtat: id,
          idDossier: this.dossier.id
        };
        this.dossierMetierService.deleteEtat(params);
        this.snacbackService.add(this.translateService.instant('common.success-suppression', {}));
      } else {
        this.snacbackService.add(this.translateService.instant('common.abondon-suppression', {}));
      }
    });
  }

服务：

deleteEtat(params: RemoveEtatDossierParams): Observable<DossierDto> {
    this.dossiersService.removeEtatDossier(params).subscribe((result) => {
      this._currentDossier.etreAEtat = this._currentDossier.etreAEtat.filter(etreAEtat => {
        return etreAEtat.id !== params.idEtreAEtat;
      });
    }, (error) => {
    });
    return Observable.create(this._currentDossier);
  }

BD中的

id：

Id in databases

不删除列表中的拳头ID

0 个答案: