将值绑定到文本区域 [英] Binding the value in a textarea
本文介绍了将值绑定到文本区域的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试在Angular2中进行最简单的两种方式绑定。我想在组件和模板之间共享一个变量。
I'm trying to do the simplest two way binding in Angular2. I would like to share a variable between my component and it's template.
我的模板是:
<textarea [(ngModel)]="currentQuery"></textarea>
我的组件是:
import { Component } from '@angular/core';
import { ViewChild } from '@angular/core';
import { OnInit } from '@angular/core';
@Component({
moduleId: module.id,
selector: 'vs-home',
templateUrl: 'home.component.html'
})
export class HomeComponent {
private currentQuery: string = '';
}
根据文档,这应该可行,但我得到了:
According to the docs this should work but I'm getting:
Error: Uncaught (in promise): Error: Template parse errors:
Can't bind to 'ngModel' since it isn't a known property of 'textarea'. ("
<div class="query-bar-container">
<textarea [ERROR ->][(ngModel)]="currentQuery"></textarea>
<!-- <button type="button" class="btn btn-default" (click"): HomeComponent@2:15
推荐答案
@NgModule({
...
imports: [
/* BrowserModule or CommonModule */,
FormsModule /* or RectiveFormsModule */]
...
})
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