---
title: Adding Validation to an ASP.NET Core app
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: 06/13/2017
ms.topic: get-started-article
ms.assetid: edbedded-1638-7734-bebe-3ac7d2799999
ms.technology: aspnet
ms.prod: asp.net-core
uid: tutorials/first-mvc-app-mac/validation
---

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

>[!div class="step-by-step"]
[Previous - Add a field](new-field.md)
[Next - Examine the Details and Delete methods](xref:tutorials/first-mvc-app/details)