---
title: "How to make sure that contents of an UpdatePanel update only when a partial postback takes place (and not on a full postback)?"  
description: "How to make sure that contents of an UpdatePanel update only when a partial postback takes place (and not on a full postback)?"  
author: "Varun Agrawal"  
published: 2011-03-29  
updated: 2020-09-16  
canonical: https://www.mindstick.com/interview/751/how-to-make-sure-that-contents-of-an-updatepanel-update-only-when-a-partial-postback-takes-place-and-not-on-a-full-postback  
category: "ajax"  
tags: ["ajax"]  
reading_time: 1 minute  

---

# How to make sure that contents of an UpdatePanel update only when a partial postback takes place (and not on a full postback)?

Make use of ScriptManager.IsInAsyncPostBack property (returns a boolean value)\
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## Answers

### Answer by Varun Agrawal

Make use of ScriptManager.IsInAsyncPostBack property (returns a boolean value)\
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Original Source: https://www.mindstick.com/interview/751/how-to-make-sure-that-contents-of-an-updatepanel-update-only-when-a-partial-postback-takes-place-and-not-on-a-full-postback

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