
    <nz-tree-select
      style="width: 250px"
      [(ngModel)]="value"
      [nzNodes]="nodes"
      nzPlaceHolder="Please select"
      nzShowIcon
    ></nz-tree-select>
    <br />
    <nz-tree-select
      style="width: 250px; margin-top: 20px;"
      [(ngModel)]="value"
      [nzNodes]="nodes"
      nzPlaceHolder="Please select"
    >
      <ng-template #nzTreeTemplate let-node>
        <span class="ant-tree-node-content-wrapper" [class.ant-tree-node-selected]="node.isSelected">
          <span>
            <nz-icon [nzType]="node.isExpanded ? 'folder-open' : 'folder'" />
            {{ node.title }}
          </span>
        </span>
      </ng-template>
    </nz-tree-select>
  