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Form Validation

Custom Bootstrap Form Validation

For custom Bootstrap form validation messages, you’ll need to add the novalidate boolean attribute to your form. For server side validation read full documentation.

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.
Browser Defaults

Not interested in custom validation feedback messages or writing JavaScript to change form behaviors? All good, you can use the browser defaults. Try submitting the form below.

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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-invalid and .is-valid. Note that .invalid-feedback is 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

Form validation styles are also available for bootstrap custom form controls.

Example invalid feedback text
More example invalid feedback text
Example invalid custom select feedback
Example invalid custom file feedback
Tooltips

You can swap the .{valid|invalid}-feedback classes for .{valid|invalid}-tooltip classes to display validation feedback in a styled tooltip.

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.