Form validation provides valuable feedback to the user. In this Bootstrap tutorial, lets learn how to add validation to forms in Bootstrap 5!
Form validation provides valuable feedback to the user. In this Bootstrap tutorial, let's learn how to add validation to forms in Bootstrap 5 !
Form verification
You can use different validation classes to provide valuable feedback to the user. Add .was-validatedor .needs-validationto the element , depending on whether you want to provide validation feedback before or after submitting the form. Input fields will have a green (valid) or red (invalid) border to indicate missing information in the form.
You can also add messages .valid-feedbackor .invalid-feedbacklet users know exactly what is missing or needs to be completed before submitting the form.
Essentially, the code below adds validation to a form using Bootstrap 5. The sample code .was-validatedshows what information needs to be filled in before submitting the form:
Valid. Please fill out this field. Valid. Please fill out this field. Valid. Check this checkbox to continue.
For example:
Bootstrap Example Form verification
For example, if you submit a form but haven't filled in all the information, you will receive a notification like the one below.
Hợp lệ. Điền đầy đủ thông tin. Hợp lệ. Điền đầy đủ thông tin. Hợp lệ. Tích box này để tiếp tục.
The above is how to add form validation or the Validation attribute to a Form in Bootstrap 5. Hopefully, this article is helpful to you.