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?
最佳答案
您可以简单地遍历每个控件并检查状态:
public findInvalidControls() {
const invalid = [];
const controls = this.AddCustomerForm.controls;
for (const name in controls) {
if (controls[name].invalid) {
invalid.push(name);
}
}
return invalid;
}
关于angular - 如何找到 Angular 4 react 形式的无效控件,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/45220073/