ngFor在行和列上使用ngClass问题 [英] ngFor using ngClass on rows and columns issue

问题描述

我正在使用Angular2及其ngFor.我想将类添加到奇数行和偶数行，因此可以按颜色将它们视觉上分开.

I am using Angular2 and its ngFor. I want to add class to odd and to even rows, so I can separate them visually by color.

这是我的代码(实际上不起作用):

Here is my code (which does not work really):

<div *ngFor="#meeting of meetingList; #index=index; #odd=odd; #even=even;"
  class="row"
  [ngClass]="{ odd: odd, even: even }
">
  <div class="col"></div>
  <div class="col"></div>
</div>

尽管我这样做是这样，代码仍然有效:

Although if I do it like this, code works:

<div *ngFor="#meeting of meetingList; #index=index; #odd=odd; #even=even;"
  class="row"
">
  <div class="col" [ngClass]="{ odd: odd, even: even }"></div>
  <div class="col" [ngClass]="{ odd: odd, even: even }"></div>
</div>

是否有更好的方法将类放到行而不是列?预先谢谢你.

Is there any better way to put class to row instead to columns? Thank you in advance.

推荐答案

您的第一个代码示例运行正常 柱塞示例

Your first code example is working fine Plunker example

@Component({
  selector: 'my-app',
  styles: [`
    .even { color: red; }
    .odd { color: green; }
    `],
  template: `
  <h2>Hello {{name}}</h2>
  <div *ngFor="let meeting of meetingList; let index=index; let odd=odd; let even=even;"
      class="row"
      [ngClass]="{ odd: odd, even: even }">{{meeting}}
    <div class="col"></div>
    <div class="col"></div>
  </div>
`
})
export class App {
  meetingList = ['a', 'b', 'c'];
}

这篇关于ngFor在行和列上使用ngClass问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！