datepicker filed validate on onblur validation get some error,
after entering the future date using mouse option click next month (arrow)
filed are validation but filed other validate error is showing
I can confirm the issue. We will investigate the problem and fix it. Thank you for the report!
If you need the fix ASAP and have a support subscription, please contact firstname.lastname@example.org.
Actually, we came to the conclusion that it's not a bug - Webix needs to focus dropdown calendars to maintain keyboard navigation and accessibility.
So you can either use the validateEvent:"change" for Datepicker control,
on define a custom onBlur handler which will start validation depending on the next focus target: https://snippet.webix.com/qbxiomfk
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