如何找到角度4反应形式的无效控件
我在Angular中有一个反应形式,如下所示: this.AddCustomerForm = this.formBuilder.group({ Firstname: ['', Validators.required], Lastname: ['', Validators.required], Email: ['', Validators.required, Validators.pattern(this.EMAIL_REGEX)], Picture: [''], Username: ['', Validators.required], Password: ['', Validators.required], Address: ['', Validators.required], Postcode: ['', Validators.required], City: ['', Validators.required], Country: ['', Validators.required] }); createCustomer(currentCustomer: Customer) { if (!this.AddCustomerForm.valid) { //some app logic } } this.AddCustomerForm.valid返回false,但是一切看起来不错。 我试图通过检查控件集合中的status属性来查找。但是我想知道是否有一种方法可以找到无效的并显示给用户?