<nz-tree
  nzBlockNode
  [nzData]="menuData"

  [nzTreeTemplate]="nzTreeTemplate"
></nz-tree>
<ng-template #nzTreeTemplate let-node let-origin="origin">
      <!--<span class="custom-node">
        <span *ngIf="!node.isLeaf" (contextmenu)="contextMenu($event, menu)">
          <span nz-icon [nzType]="node.isExpanded ? 'folder-open' : 'folder'" (click)="openFolder(node)"></span>
          <span class="folder-name">{{ node.title }}</span>
          <span class="folder-desc">created by {{ origin.author | lowercase }}</span>
        </span>
        <span *ngIf="node.isLeaf" (contextmenu)="contextMenu($event, menu)">
          <span nz-icon nzType="file"></span>
          <span class="file-name">{{ node.title }}</span>
          <span class="file-desc">modified by {{ origin.author | lowercase }}</span>
        </span>
      </span>-->
</ng-template>
<nz-dropdown-menu #menu="nzDropdownMenu">
  <ul nz-menu>
 <!--   <li nz-menu-item (click)="selectDropdown()">Action 1</li>
    <li nz-menu-item (click)="selectDropdown()">Action 2</li>-->
  </ul>
</nz-dropdown-menu>
