如何将对象中的预填充数据绑定到 Angular 5 中的单选按钮 [英] how to bind Pre-populated data from object to radio button in Angular 5

问题描述

我正在开发 Angular 5 应用程序.我得到了性别单选按钮，它的值是基于它接收的值预先填充的单选选项，我需要知道如何在 html 模板中使用 ng-if 内联.GenderType:字符串，其中值 1 代表男性，值 2 代表女性.

我尝试过 *ngIf 但它不起作用

 
<span>性别</span><input type="radio" name="gender" id="female" class="k-radio" *ngIf:{{respondent.genderType='1'}} === checked="checked" disabled><label class="k-radio-label" for="female">Female</label><input type="radio" name="gender" id="male" class="k-radio" disabled><label class="k-radio-label" for="male">Male</label>

解决方案

对我有用的最终答案

<span>性别</span><input type="radio" name="gender" id="female" class="k-radio" [attr.checked] ="respondent.genderType=='2' ? 'checked' : null" disabled><label class="k-radio-label" for="female">Female</label><input type="radio" name="gender" id="male" class="k-radio" [attr.checked] ="respondent.genderType=='1' ? 'checked' : null" disabled><label class="k-radio-label" for="male">Male</label>

I am working on Angular 5 application. I got radio button for Gender which value is pre-populated radio selection based on value it receving and I need to know how to use ng-if inline in html template. GenderType: string where value 1 is for male and 2 for female.

I have tried *ngIf but its not working out

 <div class="k-form-field">
     <span>Gender</span>
          <input type="radio" name="gender" id="female" class="k-radio" *ngIf:{{respondent.genderType='1'}} === checked="checked" disabled>
           <label class="k-radio-label" for="female">Female</label>

          <input type="radio" name="gender" id="male" class="k-radio" disabled>
             <label class="k-radio-label" for="male">Male</label>
  </div>

解决方案

final answer that works for me

<div class="k-form-field">
    <span>Gender</span>
      <input type="radio" name="gender" id="female" class="k-radio" [attr.checked] ="respondent.genderType=='2' ? 'checked' : null" disabled>
      <label class="k-radio-label" for="female">Female</label>

       <input type="radio" name="gender" id="male" class="k-radio" [attr.checked] ="respondent.genderType=='1' ? 'checked' : null" disabled>
       <label class="k-radio-label" for="male">Male</label>
</div>

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