How do I validate a FormArray in Angular?
To validate a FormArray in Angular, you can use the Validators
class to add validation rules to each FormGroup within the FormArray.
Can you give me an example of how to implement that?
Sure! You can create a FormArray like this: this.formArray = this.fb.array([this.createFormGroup()]);
and then add validators like this: this.formArray.setValidators([Validators.required]);
.
What if I want to add dynamic controls to the FormArray?
You can use the push
method to add new FormGroups dynamically. For example: this.formArray.push(this.createFormGroup());
.
How can I check if the FormArray is valid?
You can check the validity by using this.formArray.valid
. It will return true if all controls are valid.
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