我想用If条件更新我的FormGroup

Question

这是我的FormGroup

repairFacilityForm = new FormGroup({

languageTypeId: new FormControl("", Validators.required),
repairFacilityId: new FormControl(""),
timeZone: new FormControl("", Validators.required),
name: new FormControl("", Validators.required),
address: new FormControl("", Validators.required),
branch: new FormControl(""),

})

我想在If条件中将此分支更新为必需的分支。我试图这样做

  if(distributorId > 0) {

    this.repairFacilityForm = new FormGroup({
      branch: new FormControl("", Validators.required)

  });

}

但它不起作用

Answer 1

您可以使用setValidators添加验证器

this.repairFacilityForm.controls["branch"].setValidators(Validators.required);

Answer 2

试试这样吧

languageTypeId: new FormControl("", [Validators.required]),

在Array Block中添加验证