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[英]How to bind multiple values with same Id into single array in angular
[英]How can I bind multiple actions to a single Angular output?
如何在不创建任何其他方法的情况下将多个动作绑定到单个 Angular 输出?
一个示例是根据自定义组件的输出更新formControl
的值,并将该formControl
标记为脏。
您可以将数组绑定到 HTML 模板中的输出,这使您能够触发多个操作:
模板:
<ul>
<li style="cursor:pointer"
*ngFor="let value of values"
(click)="[myFormControl.setValue(value), myFormControl.markAsDirty()]">{{value}}
</li>
</ul>
<ul>
<li>Form Control Value: {{myFormControl.value}}</li>
<li>Form Control Dirty: {{myFormControl.dirty}}</li>
</ul>
<button (click)="myFormControl.reset()">Reset Form Control</button>
成分:
import { Component } from '@angular/core';
import { FormControl } from '@angular/forms';
@Component({
selector: 'my-app',
templateUrl: './app.component.html',
styleUrls: [ './app.component.css' ]
})
export class AppComponent {
myFormControl = new FormControl(null);
values = ['spring', 'summer', 'autumn', 'winter'];
}
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