This is the link to my form window
Can anybody suggest how to customize the error messages in my form window like – ‘This value is not valid’, ‘Passwords do not match’ to appear like a pop up error message for empty field?
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I think you mean form theme customization, you can check out the official doc:
http://symfony.com/doc/current/cookbook/form/form_customization.html