Timepicker Doesn't have any validation

[harilalinapp]

There is no validation in timepicker. Is it possible to return an null value if the validation fails?
That would be great.

[valorkin]

if it will return null, you will not be able to use custom validation outside of timepicker
but there are a cases when it should return null

[artdias90]

Right now it returns the most recent valid value (or undefined), which is not the best. Only assigns a css-invalid class to input but that's not useful for form validation if you have webworkers and therefore no easy way into DOM

[valorkin]

Is there are any standards for this behavior?

[artdias90]

I think together with setting has-error class, it should carry an Output()
e.g <timepicker (hasError)=""></timepicker> so we are free to decide how to take actions if an invalid hour or minute is set.