问题描述
我需要动态设置/清除formControl的验证器,如果authType为Basic,则需要标记userName / password,如果authType为oauth2,则需要标记Other字段。
我已经尝试过了
onInit() {
this.formGroup = this.formBuilder.group({
url: ['',[],FieldValidators.required],authType: ['basic',tokenUrl: ['',[]],grantType: ['',clientID: ['',clientSecret: ['',refreshToken: ['',userName: ['',password: ['',FieldValidators.required]
});
this.formGroup.get('authType').valueChanges.subscribe(value => {
console.log('here');
if (value === 'basic') {
this.formGroup.get('userName').setValidators(FieldValidators.required);
this.formGroup.get('userName').updateValueAndValidity();
this.formGroup.get('password').setValidators(FieldValidators.required);
this.formGroup.get('password').updateValueAndValidity();
this.formGroup.get('tokenUrl').clearValidators();
this.formGroup.get('tokenUrl').updateValueAndValidity();
this.formGroup.get('grantType').clearValidators();
this.formGroup.get('grantType').updateValueAndValidity();
this.formGroup.get('clientID').clearValidators();
this.formGroup.get('clientID').updateValueAndValidity();
this.formGroup.get('clientSecret').clearValidators();
this.formGroup.get('clientSecret').updateValueAndValidity();
this.formGroup.get('refreshToken').clearValidators();
this.formGroup.get('refreshToken').updateValueAndValidity();
} else if (value === 'outh2') {
this.formGroup.get('userName').clearValidators();
this.formGroup.get('userName').updateValueAndValidity();
this.formGroup.get('password').clearValidators();
this.formGroup.get('password').updateValueAndValidity();
this.formGroup.get('tokenUrl').setValidators(FieldValidators.required);
this.formGroup.get('tokenUrl').updateValueAndValidity();
this.formGroup.get('grantType').setValidators(FieldValidators.required);
this.formGroup.get('grantType').updateValueAndValidity();
this.formGroup.get('clientID').setValidators(FieldValidators.required);
this.formGroup.get('clientID').updateValueAndValidity();
this.formGroup.get('clientSecret').setValidators(FieldValidators.required);
this.formGroup.get('clientSecret').updateValueAndValidity();
this.formGroup.get('refreshToken').setValidators(FieldValidators.required);
this.formGroup.get('refreshToken').updateValueAndValidity();
}
})
}
此验证器在更改authType后正确更新后,即使在表单中输入值,控件也保持不活动状态。
解决方法
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