this.subscription.add(
        this.wbsService.currentWbsTreeListStore$.subscribe(
          (currentWbsTreeListStore) => {
            this.wbsTreeStore = currentWbsTreeListStore;
            this.showObsoleteCheckbox = new Checkbox({
              appendTo: 'showobsoletewbscheckbox',
              text: 'Show inactive nodes',
              cls: 'checkbox noselect',
              listeners: {
                action: (action) => {
                  if (!action.checked) {
                    this.wbsTreeStore.filter({
                      id: 'showobsoletewbs',
                      filterBy: (wbsNode) => !wbsNode.wbs_status_id && wbsNode.wbs_status_id === 0
                    });
                    if (!this.wbsTreeStore.records.find((foundRow) => foundRow.wbs_id === this.selectedWbsNode.wbs_id)) {
                      this.wbsService.updateCurrentWbsNode(this.wbsTreeStore.records[0]);
                    } // to ensure selection is being reset if the selected record is OBSOLETE
                  } else {
                    this.wbsTreeStore.removeFilter('showobsoletewbs');
                  }
                }
              }
            });

            if (!this.showObsoleteCheckbox.checked) {
              this.wbsTreeStore.filter({
                id: 'showobsoletewbs',
                filterBy: (wbsNode) => !wbsNode.wbs_status_id && wbsNode.wbs_status_id === 0
              });
              if (!this.wbsTreeStore.records.find((foundRow) => foundRow.wbs_id === this.selectedWbsNode.wbs_id)) {
                this.wbsService.updateCurrentWbsNode(this.wbsTreeStore.first);
              } // to ensure selection is being reset if the selected record is OBSOLETE
            } else {
              this.wbsTreeStore.removeFilter('showobsoletewbs');
            }

            if (this.selectedWbsNode) {
              const foundWbsNode: WbsModel = currentWbsTreeListStore.find(
                (wbs) => wbs.wbs_id === this.selectedWbsNode.wbs_id
              ) as WbsModel;
              this.wbsService.updateCurrentWbsNode(foundWbsNode);
            }
            if (this.selectedWbs) {
              // const foundWbs : WbsModel = currentWbsTreeListStore.find((wbs) => wbs.wbs_id === this.selectedWbs.wbs_id) as WbsModel;
              // this.wbsService.updateCurrentWbs(foundWbs);
              const foundTopWbs: WbsModel = currentWbsTreeListStore.find(
                (wbs) => wbs.wbs_id === this.selectedWbs.wbs_id
              ) as WbsModel;
              this.wbsService.updateTopWbsNode(foundTopWbs);
            }
          }
        )
      );