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Home Forums Validation error in a text field with the help of Bootstrap – MindStick
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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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