如何以编程方式将角2控件设置为dirty?-HowdoIprogrammaticallysetanAngular2formcontroltodirty?

28  

You should use the markAsDirty method, like this:

您应该使用markAsDirty方法，如下所示:

control.markAsDirty();

This will also mark all direct ancestors as dirty to maintain the model.

这也将标记所有直接祖先为脏以维护模型。

Docs link

文档链接

0  

For template driven forms we can use below generic code

对于模板驱动的表单，我们可以使用下面的通用代码

 public onSubmitForm(cardFormObject: NgForm) {
        if (!cardFormObject.valid)
            this.markAsDerty(cardFormObject);      

    }

    private markAsDerty(cardFormObject: NgForm) {
        for (var eachControl in cardFormObject.controls) {
            (cardFormObject.controls[eachControl]).markAsDirty();
        }
    }

0  

You can write a custom function to mark all the controls in a FormGroup as touched/dirty like this:

您可以编写一个自定义函数，将FormGroup中的所有控件标记为如下所示:

  markFormGroupTouched(formGroup: FormGroup) {
    (Object).values(formGroup.controls).forEach(cOntrol=> {
      control.markAsDirty();  // or control.markAsTouched();
    });
  }