Form Validations

  2. Forms
  3. Form Validations
Form Validation
For custom Bootstrap form validation messages, you’ll need to add the novalidateboolean attribute to your <form>.
Looks good!
Looks good!
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Please choose a username.
Please provide a valid city.
Please provide a valid state.
Please provide a valid zip.
You must agree before submitting.
Tooltips Validations
If your form layout allows it, you can swap the .{valid|invalid}-feedbackclasses for .{valid|invalid}-tooltipclasses to display validation feedback in a styled tooltip. Be sure to have a parent with position: relativeon it for tooltip positioning. In the example below, our column classes have this already, but your project may require an alternative setup.
Looks good!
Looks good!
@
Please choose a unique and valid username.
Please provide a valid city.
Please provide a valid state.
Please provide a valid zip.
Browser defaults
Not interested in custom validation feedback messages or writing JavaScript to change form behaviors? All good, you can use the browser defaults.
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Server side
We recommend using client side validation, but in case you require server side, you can indicate invalid and valid form fields with .is-invalidand .is-valid. Note that .invalid-feedbackis also supported with these classes.
Looks good!
Looks good!
@
Please choose a username.
Please provide a valid city.
Please provide a valid state.
Please provide a valid zip.
You must agree before submitting.
Supported elements
Our example forms show native textual <input>s above, but form validation styles are available for our custom form controls, too.
Example invalid feedback text
More example invalid feedback text
Example invalid custom select feedback
Example invalid custom file feedback
Form Validation
Basic form validation.