我想“提取”一个组件/模板中可用的所有formGroup实例。可能吗?一个简单的例子:
<div>
<h1>parent form</h1>
<mat-form-field [formGroup]="formParent">
<input matInput [formControl]="parentField" />
</mat-form-field>
<div>
<div>
<h3>child1 form</h3>
<mat-form-field [formGroup]="childField1">
<input matInput [formControl]="childField1" />
</mat-form-field>
<hr />
<h2>child2 form</h2>
<mat-form-field [formGroup]="childField2">
<input matInput [formControl]="childField2" />
</mat-form-field>
</div>
</div>
</div>
稍后,我要使用所有字段,并使用方法将它们添加到另一个formGroup中
anotherForm.addControl('newFormField', fields from the extracted form above as AbstractControl)