Validate dates typed or pasted into the input field

[Chris78]

If someone types/pastes "31.11.2024" for example show that this date is invalid.
It should be assumed it is in the format, that was specified via 'datepicker-format-value' to detect if it's valid (so 13.01.2024 is valid for '%d.%m.%Y', however it's invalid for '%m.%d.%Y').

I could imagine different possibilities:

• add red border to the text field
• open the calendar to select a valid date and show "invalid date" message in the calendar

Maybe even both will combine well.