Use of this source code is governed by an MIT-style license that can be found in the LICENSE file athttp://angular.io/license*/ Compiling application & starting dev server… angular-wrapped-form-control-example.stackblitz.io Console Clear on reload...
First, we have imported FormGroup module from Angular forms and then created an instance of FormGroup and passed all the three fields and created its FormControl instances. The instance of FormControl created in the class has been used in HTML using angular formControlName that syncs the Form...
Angular FormControl is an inbuilt class that is used to get and set values and validation of the form control fields like <input> or <select>. The FormControl tracks the value and validation status of an individual form control. It can be used standalone as well as with a parent form. ...
import{Component}from'@angular/core';import{FormControl,FormGroup}from'@angular/forms'; 在组件类中,创建一个FormGroup对象,并在其中定义一个FormControl对象来处理Select2多选的绑定。 代码语言:typescript 复制 @Component({selector:'app-example',template:`<select multiple id="mySelect2" [formControl]=...
<!-- example.component.html --> <input [formControl]="myControl" /> 异步数据问题:如果你的FormControl绑定的值依赖于异步操作(比如 HTTP 请求),在数据到达之前,FormControl可能会返回空值。 代码语言:txt 复制 import { Component, OnInit } from '@angular/core'; import { FormControl } from '@angu...
Since form controls can be "touched", you should also give Angular the means to understand when your custom form control is touched. You can do it, you guessed it, by calling theonTouchfunction. So for our example here, if you want to stay compliant with how Angular is doing it for ...
我正在尝试添加一个带有自定义电话号码输入控件的表单字段。我使用了https://material.angular.io/components/form-field/examples中的电话示例。 这是代码: <mat-form-field> <example-tel-input placeholder="Phone number" required></example-tel-input> ...
我不知道如何使用formcontrol值来控制另一个元素的显示。我知道使用ngModel,但这不是一个选项。基本上,我必须使用不同的元素,我需要使用另一个表单项的值来控制这些元素中的内容。下面是一个例子: <mat-form-field class="example-full-width" appearance="fill"> ...
This is a package built to make displaying validation errors from Angular Form Controls easier. Installation In module: import { NgFormErrorsModule } from 'form-control-errors' ... imports: [ ... NgFormErrorsModule, ... ] Use <lib-form-errors [form]="exampleForm" [errorMsgs]="er...
this.formGroup.value, null, 2)); }}来源： https ://stackblitz.com/angular/gjjng...