Collapse button with Angular

• I have this TS file that generate my buttons
• I want to make search button collapsable to show and hide some text in my html file

  initContainerList(): void {
    // @formatter:off
    this.containerList = [
      {
        widgetType: this.widgetTypeEnum.crudTemplate,
        config: {
          pageTitle: 'act',
          actions: [
            {title: 'new'        , onClick: () => this.changeView() , color: 'primary'},
            {title: 'update'     , onClick: () => this.load()       , color: 'warn'   },
            {title: 'search'     , onClick: null                    , color: 'accent' },
          ],
          container: [this.getOffCanvasContainer(), this.getTableContainer()]
        }
      }
    ];
    // @formatter:on
  }