How to set value on object on formbuilder inside another - Typescript

问题

I want to access an existing formBuilder and set value of a specific object. The problem is that is not a normal formbuilder. It is a formbuilder inside another.

code:

  formBuilder.group({
      nasty: formBuilder.group({
        myobject: ['', []],
      })});

How can I set value on myobject?

回答1:

This is just a FormGroup within a FormGroup.

You could just patchValue whole form object.

this.form.patchValue({ nasty: { myobject: 'POPULATED' }})

Or you could target specific one.

this.form.get('nasty.something').patchValue('AND THIS TOO');

Here is StackBlitz with example -> https://stackblitz.com/edit/angular-3wpxsy

来源：https://stackoverflow.com/questions/54931988/how-to-set-value-on-object-on-formbuilder-inside-another-typescript