我需要这样的东西:
<tr>
somecode...
</tr *ngIf="some condition">
当然不支持,但有没有办法实现这种行为?
我有一个表,我希望使用接收节点列表(List)的组件递归地添加行,迭代节点,打印它们并为每个节点的每个子节点调用自己,大致如下:
main.component.html
<table class="table table-bordered">
<thead>
<tr>
<th>node names</th>
</tr>
</thead>
<tbody>
<tr app-rower [nodes]="nodes"></tr>
</tbody>
</table>
rower.component.html:
<ng-container *ngFor="let node of tree">
<tr>
<td>
{{node.name}}
</td>
</tr *ngIf="node.hasChildren">
<tr *ngIf="node.hasChildren" app-rower [tree]="node.children" >
</tr *ngIf="!node.hasChildren">
</ng-container>
所以最终的HTML会是:
<table>
<thead>
<tr>
<th>node's names</th>
</tr>
</thead>
<tbody>
<tr>
<td>node 1</td>
</tr>
<tr>
<td>node 1's child</td>
</tr>
<tr>
<td>node 1's grandchild</td>
</tr>
<tr>
<td>node 2</td>
</tr>
<tr>
<td>node 2's child</td>
</tr>
</tbody>
</table>
答案 0 :(得分:5)
不,不支持。模板需要是有效的HTML,否则Angular不会解析它。
<ng-container *ngFor="let node of tree">
<tr>
<td>
{{node.name}}
</td>
</tr>
<tr *ngIf="node.hasChildren" app-rower [tree]="node.children" >
</tr>
</ng-container>