#### Validations

##### Form Validation

###### For custom Bootstrap form validation messages, you’ll need to add the `novalidate` boolean attribute to your `<form>`.

First name
Looks good!
Last name
Looks good!
Username
@
Please choose a username.
City
Please provide a valid city.
State
Please provide a valid state.
Zip
Please provide a valid zip.
Agree to terms and conditions
You must agree before submitting.

##### Tooltips Validations

###### If your form layout allows it, you can swap the `.{valid|invalid}-feedback` classes for `.{valid|invalid}-tooltip` classes to display validation feedback in a styled tooltip. Be sure to have a parent with `position: relative` on it for tooltip positioning. In the example below, our column classes have this already, but your project may require an alternative setup.

First name
Looks good!
Last name
Looks good!
Username
@
Please choose a unique and valid username.
City
Please provide a valid city.
State
Please provide a valid state.
Zip
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.

First name
Last name
Username
@
City
State
Zip
Agree to terms and conditions

##### 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.

First name
Looks good!
Last name
Looks good!
Username
@
Please choose a username.
City
Please provide a valid city.
State
Please provide a valid state.
Zip
Please provide a valid zip.
Agree to terms and conditions
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.

Check this custom checkbox
Example invalid feedback text
Toggle this custom radio
Or toggle this other custom radio
More example invalid feedback text
Example invalid custom select feedback
Choose file...
Example invalid custom file feedback

##### Form Validation

###### Basic form validation.

User ID *
Email *
Password *
Re-Type Password *
Description *
Skill *
Currency *
Website *
Phone *
Digits *
Number *
Range [1, 5] *
Terms & Conditions *
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