复选框在角度4中不工作

无需捆绑 ngModel 和 formControlName ,看看这里

<input class="input" type="search" #agmSearch>
<p class="even" *ngFor="let item of dayList;let i = index">
<input  type="checkbox" checked="item.check" (change)="updateChkbxArray(item, $event.checked, 'selectedDays')" value="n.id" >  {{item}}
</p>

Working Example

既然您已经使用了input元素,那么是否可以在应用程序的根模块中包含“@angular/forms”中的“forms module”并尝试。

请尝试下面的代码以显示多个复选框以及如何在组件中获取多个选择

//html

<tr *ngFor="let address of addressList">
    <td>
        <input type="checkbox" value="{{address.id}}" name="{{address.email}}" (change) ="updateSelectedTimeslots($event)" />
    </td>
</tr>

/ /共同

countries: any[] = [];
updateSelectedTimeslots(event) {
    let this.countries: any[] = [];
    if (event.target.checked) {
        if (this.countries.indexOf((event.target.name)) < 0) { 
                this.countries.push(({'email':event.target.name}));
        }
    } else {
         for(let i = 0; i < this.countries.length; i++) {
            let country = this.countries[i];
            if(country.email.toLowerCase().indexOf(event.target.name.toLowerCase()) == 0) {
                this.countries.splice(this.countries.indexOf(({'email':event.target.name})), 1);              
            } 
        }
    }
}