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Validation error in a text field with the help of Bootstrap

Ethan Karla 320 28 Jul 2021

How to show validation error in text field with the help of Bootstrap?

bootstrap bootstrap
Updated 28 Jul 2021
Ethan Karla
Ethan Karla

Student

An enthusiastic, adaptive, and fast-learning person with a broad and acute interest in the discovery of new innovative drugs, I particularly enjoy collaborating with scientists from different disciplines to develop new skills and solve new challenges.

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1 Answers

Anonymous User
Anonymous User 03 Aug 2021
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To show a validation error in a text field with the help of Bootstrap you just need to add the is-invalid class in an input field.

Let's have an example to demonstrate validation error in a text field with the help of Bootstrap : 

<html lang='en'>

<head>

    <meta charset='utf-8'>

    <meta name='viewport' content='width=device-width, initial-scale=1, shrink-to-fit=no'>

    <title>Bootstrap Dropdown</title>

    <link href='https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css' rel='stylesheet' integrity='sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC' crossorigin='anonymous'>

    <script src='https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js' integrity='sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM' crossorigin='anonymous'></script>

</head>

<body>

    <div class='container d-flex justify-content-center flex-column'>

        <form class='row g-3'>

            <div class='col-md-4'>

                <label for='name' class='form-label'>Locality</label>

                <input type='text' class='form-control is-valid' id='name' value='Civil Lines' required>

                <div class='valid-feedback'>

                    Looks good!

                </div>

            </div>

            <div class='col-md-6'>

                <label for='city' class='form-label'>City</label>

                <input type='text' class='form-control is-invalid' id='city' aria-describedby='validationServer03Feedback' required>

                <div id='validationServer03Feedback' class='invalid-feedback'>

                    Please provide a valid city.

                </div>

            </div>

        </form>

    </div>

</body>

</html>

Hope this will help you.

Happy Coding!

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