如何使用 ngFor 和 bootstrap 4 创建新的卡片行 [英] How to create a new row of cards using ngFor and bootstrap 4

问题描述

我正在尝试将 Bootstrap 4 的卡片组功能与 Angular ngFor 结合使用.

这是我现在拥有的 HTML，但我找不到如何在插入 3 个项目后换行:

<div *ngFor="让演示文稿呈现" class="col-4 卡片"><a [routerLink]="['/presentation',presentation._id]">{{presentation.title}}</a>

我看到其他答案说要使用 clearfix 类，但到目前为止这对我来说还没有用.

解决方案

你需要一个带有 col-4 类的 div 环绕

; 与 card 类.这就是网格布局的工作原理.

在此处查看使用网格标记部分:https://v4-alpha.getbootstrap.com/components/card/#using-grid-markup

所以:

<div class="col-4" *ngFor="让演示文稿呈现"><div class="card"><a [routerLink]="['/presentation',presentation._id]">{{presentation.title}}</a>

示例 plunker:https://plnkr.co/edit/8LDBMorXBB1OqI0bolS6?p=preview

I'm trying to use the card group functionality of Bootstrap 4 with Angular ngFor.

Here is the HTML I have for now, but I can't find how to break to a new line after 3 items have been inserted:

<div class="row card-group">
    <div *ngFor="let presentation of presentations" class="col-4 card">
        <a [routerLink]="['/presentation', presentation._id]">{{presentation.title}}</a>
    </div>
</div>

I've seen other answer saying to use the clearfix class, but this has not worked so far for me.

解决方案

You need a wrapping div with the class col-4 arroud the <div> with card class. thats how grid layout works.

see using grid markup section here: https://v4-alpha.getbootstrap.com/components/card/#using-grid-markup

so:

<div class="row card-group">
    <div class="col-4"  *ngFor="let presentation of presentations">
        <div class="card">
            <a [routerLink]="['/presentation', presentation._id]">{{presentation.title}}</a>
        </div>
    </div>
</div>

sample plunker: https://plnkr.co/edit/8LDBMorXBB1OqI0bolS6?p=preview

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