Angular 角度5展开/折叠列表
我使用材质列表控件显示嵌套对象。我用div创建了mat列表,但我想在这里添加扩展/折叠行选项,当我单击行时,它应该显示子类别divAngular 角度5展开/折叠列表,angular,typescript,Angular,Typescript,我使用材质列表控件显示嵌套对象。我用div创建了mat列表,但我想在这里添加扩展/折叠行选项,当我单击行时,它应该显示子类别div <mat-list> <div *ngFor="let item of chaptersItems"> <mat-list-item> <a style="cursor: pointer;"> <h4 mat-line>{{i
<mat-list>
<div *ngFor="let item of chaptersItems">
<mat-list-item>
<a style="cursor: pointer;">
<h4 mat-line>{{item.name}} {{item.description}}</h4>
</a>
</mat-list-item>
<mat-list style="margin-left:30px;">
<div *ngFor="let subItem of item.subChapters">
<mat-list-item>
<a style="cursor: pointer;">
<p mat-line> {{subItem.name}}. {{subItem.description}}</p>
</a>
</mat-list-item>
</div>
</mat-list>
</div>
</mat-list>
{{item.name}{{{item.description}}
{{subItem.name}。{{subItem.description}}
如何在div或mat列表控件上实现单击功能?您可以使用组件,它非常简单您可以将每个项目包装到mat扩展面板包装器中,如下所述: 看起来是这样的:
<mat-list>
<div *ngFor="let item of chaptersItems">
<mat-expansion-panel>
<mat-expansion-panel-header>
<mat-list-item>
<a style="cursor: pointer;">
<h4 mat-line>{{item.name}} {{item.description}}</h4>
</a>
</mat-list-item>
<mat-expansion-panel-header>
<mat-list style="margin-left:30px;">
<div *ngFor="let subItem of item.subChapters">
<mat-list-item>
<a style="cursor: pointer;">
<p mat-line> {{subItem.name}}. {{subItem.description}}</p>
</a>
</mat-list-item>
</div>
</mat-list>
</mat-expansion-panel>
</div>
</mat-list>
{{item.name}{{{item.description}}
{{subItem.name}。{{subItem.description}}
太好了,就是这样。谢谢第二个标签应该是结束标签: