#99457
admin
Keymaster

Hi hansT,
To validate the user input this way, You have to use the following mask – “AA #### AA”(“A” matches A-Z letters, “#” matches digits).
Here is a snippet:
<smart-masked-text-box mask="AA #### AA"></smart-masked-text-box>
Best Regards,
Ivailo Ivanov
Smart HTML Elements Team
https://www.htmlelements.com