How can patchValue be used to both assign a value and deactivate the field?

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PatchValue method in Angular allows updating the value of a form control field, but cannot deactivate the field. However, we can add an additional property to track if the field is disabled or not.

For example, let's say we have a FormGroup with a FormControl called "name". We can add a new boolean property called "disabled" to it like this:

this.formGroup = this.formBuilder.group({
  name: [{value: '', disabled: false}]
});

Now, when we want to both assign a value and deactivate the field, we can use patchValue as follows:

this.formGroup.patchValue({
  name: {value: 'John Doe', disabled: true}
});

This will assign the value of "John Doe" to the "name" control and disable it as well.