Angualr2错误:无法设置#< AbstractControl>的属性值.里面只有吸气剂 [英] Angualr2 Error : Cannot set property value of #<AbstractControl> which has only a getter
本文介绍了Angualr2错误:无法设置#< AbstractControl>的属性值.里面只有吸气剂的处理方法,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
表单看起来像:
<form [ngFormModel]="myForm" (ngSubmit)="update()">
<ion-label floating>First Name</ion-label>
<ion-input type="text" id="fname" [ngFormControl]="fname">
</form>
相关课程:
export class ProfilePage {
myForm: ControlGroup;
fname: AbstractControl;
constructor(private _profile: Profile, fb: FormBuilder) {
this.myForm = fb.group({
'fname': ['', Validators.compose([Validators.required, Validators.minLength(2), firstCharacter])]
});
this.fname = this.myForm.controls['fname'];
Promise.all([this._profile.firstname, this._profile.lastname, this._profile.base64Image]).then(values => {
this.fname.value = values[0];
// this.lname.value = values[1];
});
}
收到错误:
EXCEPTION: Error: Uncaught (in promise): TypeError: Cannot set property value of #<AbstractControl> which has only a getter
推荐答案
我认为您应该使用FormGroup的setValue或patchValue方法.
I think you should use setValue or patchValue methods of FormGroup.
this.myForm.patchValue({fname: firstName});
如果您只想选择性地更新某些字段,或者使用setValue并更新全部
use patchValue if you want to selectively update only certain fields, or setValue and update all
这篇关于Angualr2错误:无法设置#< AbstractControl>的属性值.里面只有吸气剂的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文