Angular 2单选按钮2路绑定

Question

我有3个单选按钮如下:

html的:

<input type="radio" name = "options" value="All" [checked]='selectedRadioButtonValue' (input)='selectedRadioButtonValue=$event.target.value' />
<span class="radioClass">{{"All("+all+")"}}</span>

<input type="radio" name = "options" value="Male" [checked]='selectedRadioButtonValue' (input)='selectedRadioButtonValue=$event.target.value' />
<span class="radioClass">{{"Male("+male+")"}}</span>

<input type="radio" name = "options" value="Female" [checked]='selectedRadioButtonValue' (input)='selectedRadioButtonValue=$event.target.value' />
<span class="radioClass">{{"Female("+female+")"}}</span>

我不想[(ngModel)]因包裹问题而使用.

我想用[]和()传统方式.

现在,问题是在selectedRadioButtonValue中没有改变值.这是什么问题？

export class EmployeeComponent {

selectedRadioButtonValue: string = "All";

}

Answer 1

对于双向数据绑定,它与所有其他数据一样使用此语法[(ngModel)]

<div class="form-group">
<label>Gender:</label> 
&nbsp;

<label class="radio-inline">
    <input type="radio" name="optradio" value='Male' [(ngModel)]="employee.gender" >Male
</label>

<label class="radio-inline">
    <input type="radio" name="optradio" value='Female' [(ngModel)]="employee.gender" >Female
</label>