<mat-tree class="adf-tree-view-main" [dataSource]="dataSource" [treeControl]="treeControl" *ngIf="nodeId; else missingNodeId"> <mat-tree-node class="adf-tree-view-node" *matTreeNodeDef="let treeNode" id="{{treeNode.name + '-tree-node'}}" matTreeNodePadding [matTreeNodePaddingIndent]="15"> {{treeNode.name}} </mat-tree-node> <mat-tree-node class="adf-tree-view-node" id="{{treeNode.name + '-tree-child-node'}}" *matTreeNodeDef="let treeNode; when: hasChild" matTreeNodePadding [matTreeNodePaddingIndent]="15"> <button id="{{'button-'+treeNode.name}}" (click)="onNodeClicked(treeNode.node)" mat-icon-button [attr.aria-label]="'toggle ' + treeNode.filename" matTreeNodeToggle> <mat-icon class="adf-tree-view-icon"> {{treeControl.isExpanded(treeNode) ? 'folder_open' : 'folder'}} </mat-icon> </button> {{treeNode.name}} </mat-tree-node> </mat-tree> <ng-template #missingNodeId> <div id="adf-tree-view-missing-node"> {{'ADF-TREE-VIEW.MISSING-ID' | translate}} </div> </ng-template>