---
title: "[How Do I:] Share Data Between Client JavaScript and Server Code Using a Hidden Field | Microsoft Docs"
author: rick-anderson
description: "In this video Chris Pels will show how to share data in between JavaScript and server-side code by using a hidden field in an ASP.NET page. Next, learn how t..."
ms.author: aspnetcontent
manager: wpickett
ms.date: 03/13/2008
ms.topic: article
ms.assetid: bf0a7434-a017-4506-a240-2bd27e360a2f
ms.technology: dotnet-webforms
ms.prod: .net-framework
msc.legacyurl: /web-forms/videos/how-do-i/how-do-i-share-data-between-client-javascript-and-server-code-using-a-hidden-field
msc.type: video
---
[How Do I:] Share Data Between Client JavaScript and Server Code Using a Hidden Field
====================
by [Chris Pels](https://twitter.com/chrispels)

In this video Chris Pels will show how to share data in between JavaScript and server-side code by using a hidden field in an ASP.NET page. Next, learn how to use the RegisterHiddenField method in server-side code to programmatically create a hidden field on the client. In addition, see how to programmatically create a HiddenField server control for sharing data on an ASP.NET page. Finally, use the RegisterArrayDeclaration method to create a container in server code for storing multiple values that is rendered to the page where it can be accessed by JavaScript.

[▶ Watch video (21 minutes)](https://channel9.msdn.com/Blogs/ASP-NET-Site-Videos/how-do-i-share-data-between-client-javascript-and-server-code-using-a-hidden-field)