可以在ngFor内部使用ng-content吗? [英] Can an ng-content be used inside of an ngFor?

问题描述

我们想在*ngFor内放置一个ng-content，然后在使用包含ngFor的组件时指定ng-content的内容.有可能吗?

We'd like to put a ng-content inside of an *ngFor and then specify the contents of the ng-content when the component containing the ngFor is used. Is it possible?

<li *ngFor="let data of dataSource">
  <ng-content></ng-content>
</li>

演示

推荐答案

可能，但可能不会产生期望的结果.由父级传递的子代只能投影一次(无论那里有多少<ng-content>.如果<ng-content>元素未使用select属性选择传递的子代的特定部分和不同部分，则所有项目都将投影到带有默认选择器的第一个<ng-content>(无).

It is possible but probably doesn't produce the desired result. Children passed by the parent can only projected once (no matter how many <ng-content> are there. If the <ng-content> elements don't select specific and different parts of the passed children using the select attribute, then everything is projected to the first <ng-content> with the default selector (none).

要执行此操作，您可能需要一个自定义的ngFor，该自定义ngFor重复传递给<ng-content>的内容.

To make this work you probably want a custom ngFor that repeats the content passed to <ng-content>.

NgFor s ngForTemplate 可能对您的用例有所帮助.

NgFors ngForTemplate might help in your use case.

另请参见 Angular2子组件作为数据

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