我正在使用 Angular 2 RC 5 并执行以下操作:
- 下一个
- 网页包
- 响应式(Reactive)
我构建了一个简单的测试表单,但在浏览器控制台中出现以下错误:
zone.js:461Unhandled Promise rejection: EXCEPTION: Error in ./FormComponent class FormComponent - inline template:4:25
ORIGINAL EXCEPTION: TypeError: this.form.get is not a function
ORIGINAL STACKTRACE:
TypeError: this.form.get is not a function
at FormGroupDirective.addControl (https://tahseen.github.io/angular2-reactive-form-webpack-esnext/loads.bundle.js:35832:31)
at FormControlName.ngOnChanges (https://tahseen.github.io/angular2-reactive-form-webpack-esnext/loads.bundle.js:35650:33)
at DebugAppView._View_FormComponent0.detectChangesInternal (FormComponent.ngfactory.js:230:55)
at DebugAppView.AppView.detectChanges (https://tahseen.github.io/angular2-reactive-form-webpack-esnext/loads.bundle.js:18565:15)
at DebugAppView.detectChanges (https://tahseen.github.io/angular2-reactive-form-webpack-esnext/loads.bundle.js:18671:45)
at DebugAppView.AppView.detectViewChildrenChanges (https://tahseen.github.io/angular2-reactive-form-webpack-esnext/loads.bundle.js:18591:20)
at DebugAppView._View_FormComponent_Host0.detectChangesInternal (FormComponent.ngfactory.js:31:8)
at DebugAppView.AppView.detectChanges (https://tahseen.github.io/angular2-reactive-form-webpack-esnext/loads.bundle.js:18565:15)
at DebugAppView.detectChanges (https://tahseen.github.io/angular2-reactive-form-webpack-esnext/loads.bundle.js:18671:45)
at ViewRef_.detectChanges (https://tahseen.github.io/angular2-reactive-form-webpack-esnext/loads.bundle.js:16397:66)
这是我的代码:
form.component.js
import { Component } from '@angular/core';
import { FormBuilder } from '@angular/common';
import template from './form.component.html'
@Component({
selector: 'load-form',
template: template
})
export class FormComponent {
carriers = [];
stations = [];
loadForm = {};
constructor(formBuilder : FormBuilder) {
this.formBuilder = formBuilder;
this.loadForm = this.formBuilder.group({
carrierId: '',
carrierStationId: ''
});
console.log("constructor")
}
ngOnInit() {
console.log("ngOnInit")
}
saveLoad(data) {
console.log(data);
}
}
form.component.html
<form [formGroup]="loadForm" (ngSubmit)="saveLoad(loadForm.value)">
<div>
<label>Carrier</label>
<div>
<input type="text" formControlName="carrierId">
</div>
</div>
<div>
<label>Station</label>
<div>
<input type="text" formControlName="carrierStationId">
</div>
</div>
<div>
<button type="submit" >[+] Add Load</button>
</div>
</form>
有人知道这是怎么回事吗?我坚持了好几天。
完整代码可以在这里找到:
https://github.com/tahseen/angular2-reactive-form-webpack-esnext
错误的实例可以在这里看到:
https://tahseen.github.io/angular2-reactive-form-webpack-esnext/
最佳答案
我在使用 Angular 2 - 响应式表单方法时遇到了同样的问题。我的问题是将主 FormGroup 绑定(bind)到 HTML 时的语法。
我在做 <form formGroup="myFormGroupName">
而不是 <form [formGroup]="myFormGroupName"/>
.希望对您有所帮助。
关于Angular 2 Reactive Form Error - TypeError : this. form.get 不是一个函数,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/39236282/