最终实例demo
app-component.ts
import { Component } from '@angular/core';
import { FormBuilder, FormGroup, Validators...],
lastName: ['Jones', Validators.required],
about: []
});
}
submit() {
if (...],
email: ['', [Validators.required, Validators.email]],
age: ['', Validators.required],
...
})...;
// 也可以写成
this.personForm = new FormGroup({
username: new FormControl('', Validators.required),...email: new FormControl('', Validators.required),
});
表单元素上面不要同时出现formControlName和ngModel
如 <input