角度动态行跨度 [英] Dynamic rowspan in angular

问题描述

人数及其手机号码是动态的.我需要在表格中显示这一点.

Number of persons and their mobiles numbers are dynamic. I need to show this in table.

数据可以包含任意数量的 pname 和手机号码.

Data can contain any number of pname and mobile numbers.

dataList = [
 {
  pname: "abc",
  numbers: [{mobile1: 123, mobile2: 234}]
 },
{
  pname: "mno",
  numbers: [{mobile1: 125, mobile2: 237}]
 }
]

模板

<tr *ngFor="let data of dataList">
 <td  [attr.rowspan]="data.numbers.lenght">data.pname</td>
 <td>data.numbers</td> // Here how do I show all mobile numbers of the person.
</tr>

预期输出如下代码.

table, th, td {
    border: 1px solid black;
}

<table>
  <tr>
    <th>Pname</th>
    <th>Numbers</th>
  </tr>
  <tr>
    <td rowspan="2">Abc</td>
    <td>123</td>
  </tr>
  <tr>
    <td>234</td>
  </tr>
  <tr>
    <td rowspan="2">Mno</td>
    <td>125</td>
  </tr>
  <tr>
    <td>237</td>
  </tr>
</table>

我面临的问题是我需要在每次运行 *ngFor 后添加 tr 并且 tr 的数量将取决于数字数组的长度以形成行跨度.

Problem I am facing is I need to add tr after each run of *ngFor and the number of tr will depend on length of numbers array to make row span.

推荐答案

你可以像下图这样操作

<table>        
    <ng-container *ngFor="let data of dataList">    
        <tr>
            <td [attr.rowspan]="data.numbers.length">{{data.pname}}</td>
            <td>{{data.numbers[0]}}</td>
        </tr>
        <ng-container *ngFor="let number of data.numbers; let i= index;">
            <tr *ngIf="i!=0">
                <td>{{number}}</td>
            </tr>
        </ng-container>
    </ng-container>
</table>

但是 datalist 必须是以下格式，即数字必须是数组

But datalist must be of the following format i.e. numbers must be an array

dataList = [
 {
  pname: "abc",
  numbers: [123, 234]
 },
{
  pname: "mno",
  numbers: [125,  237]
 }
]

这篇关于角度动态行跨度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！