Angular - 反应式表单 - 如何使用类和验证器将对象传递到 FormGroup

我要创建一个大型表单，并决定使用反应式表单功能以方便使用。然而，我面临着一些可能显而易见的挑战并寻求帮助。

下面是两种情况，除了验证之外，它们产生相同的结果。这createFormWithValidation()方法指定每个控件及其关联的验证器。这createFromPassingObject()方法仅使用this.party对象但没有添加验证器。

我的目标是将一个对象传递给this.fb.group()它将具有属于该类的一部分的控件，并且能够为该类的每个属性指定验证器Party Class.

// The Class with the properties
export class Party {
  firstName: string = '';
  lastName: string = '';

  constructor() {}
}

// party Object
myForm: FormGroup;
this.party = new Party();

// Form with explicit controls and their validators

createFormWithValidation() {
  this.myForm = this.fb.group({
    firstName: [this.party.firstName, [Validators.required, Validators.minLength(3)]],
    lastName: [this.party.lastName, [Validators.required, Validators.minLength(3)]]
  })
}

// The goal is to achieve this type of method where this.party will be the object of the controls and their validators. 

createFormPassingObject() {
  this.myForm = this.fb.group(this.party)
}

非常感谢您的帮助。

这就是我正在为我的案例做的事情。请注意，我也正在开发我的项目，因此不能保证它能够正常工作。无论如何，我就是这样做的：

// First is to define a const that is going to be the pre-defined object going in this.formBuilder.group()
export const predefinedFormGroup = {
 property1: new FormControl('', Validators go here),
 property2: new FormControl('', Validators go here)
}

// Create the form
this.myForm = this.formBuilder.group(predefinedFormGroup);

// My use-case is I have to add new FormGroup to an existed FormGroup in an existed Form:
(<FormGroup>this.myForm.get['sections']).addControl(section.name, this.formBuilder.group(section.interface));

我希望我在这里说得有道理。