How do I highlight an invalid form field via custom logic in the onchange method?

Question

I am trying to validate a phone field using a custom python library that checks if a given phone number is valid or not. If it is invalid I would like to show the field in red, somewhat like how we see mandatory fields highlighted after we click submit without filling them in. How do I trigger this highlighting of the field?

Haresh Kansara · Answer

Hi Ragav,
if your main goal is to validate field before saving record and raise validation error then you cam put your login into @api.constrains to achieve this.
When user click on save button then @api.constrains will execute and if number not on correct format then raise error.
But if you really want to make field as red like mandatory then you need to do the JS stuff to validate number and and make field border red using JS calculation.
There is an already module to validate number:
https://

相关帖文	回复	查看
Error while trying to open a form in my module 已解决 error form	2 1月 21	3681
Form view fields validation 已解决 form validation input	1 11月 23	2718
statusbar does not highlight. [Closed] 已解决 form statusbar highlight	4 8月 15	7250
Error while adding grid to a form. error form gridview	0 3月 15	4183
form view server error server error form view	3 3月 15	4586

此问题已终结

喜欢讨论吗？不要只阅读，加入进来！