After updating to version 8.1.040.
l 'ajax event of a FORM does not assign the value to a select type field.
Hello,
It is very probable that the fix for this false problem also resolve any issues related to Ajax events.
http://www.scriptcase.net/forum/forum/scriptcase-8/bugs-aa/68813-message-undefined-flase
Hello,
Please, update your ScriptCase to release 8.1.041 and let me know if the problem persists.