---
title: "Validation error in a text field with the help of Bootstrap"
description: "Validation error in a text field with the help of Bootstrap"
author: "Ethan Karla"
published: 2021-07-28
updated: 2021-07-28
canonical: https://www.mindstick.com/forum/156619/validation-error-in-a-text-field-with-the-help-of-bootstrap
category: "bootstrap"
tags: ["bootstrap"]
reading_time: 2 minutes
---
# Validation error in a text field with the help of Bootstrap
How to show [validation error](https://answers.mindstick.com/qa/93869/how-to-show-a-validation-error-in-a-text-field-with-the-help-of-bootstrap) in [text field](https://www.mindstick.com/forum/33753/how-to-get-value-from-text-field-on-button-click-in-ios) with the help of [Bootstrap](https://www.mindstick.com/articles/1555/image-viewer-using-bootstrap-carousel)?
## Replies
### Reply by Anonymous User
To show a [validation](https://www.mindstick.com/articles/12234/validation-using-data-annotation-using-entity-framework) [error](https://yourviews.mindstick.com/view/88527/fixing-quickbooks-error-4120-reinstalling-vs-repairing) in a [text](https://www.mindstick.com/blog/301635/did-people-reinvent-texting-to-express-the-full-range-of-emotions) [field](https://www.mindstick.com/forum/160867/does-mindstick-provide-training-for-field-marketing) 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 :
```
Bootstrap Dropdown