---
title: Adding Validation | Microsoft Docs
author: rick-anderson
description: How to add validation to a simple ASP.NET Core app.
keywords: ASP.NET Core, validation, DataAnnotations
ms.author: riande
manager: wpickett
ms.date: 04/13/2017
ms.topic: article
ms.assetid: edbed483-6858-4f19-8082-3ac7d2752999
ms.technology: aspnet
ms.prod: asp.net-core
uid: tutorials/first-mvc-app-xplat/validation
---

[!INCLUDE[validation](../../includes/mvc-intro/validation.md)]

>[!div class="step-by-step"]
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