<div>
I can only see half the error message from your screenshot. &nbsp;Can you post the full javascript error please
</div>


I can only see half the error message from your screenshot.  Can you post the full javascript error please

<div>
The error that is coming in the message box is<br />
<b><br />
Line: 938<br />
Error: Sys.WebForms.PageRequestMa<wbr />nagerServe<wbr />rErrorExce<wbr />ption: Input string was not in a correct format.<br />
</b>
</div>


The error that is coming in the message box is

Line: 938
Error: Sys.WebForms.PageRequestManagerServerErrorException: Input string was not in a correct format.


<div>
When you are using AJAX if there is an error that is generated due to server side code it will translate to such a message on client side. You need to look in to your Server side code where you are passing in string for some processing.
</div>


When you are using AJAX if there is an error that is generated due to server side code it will translate to such a message on client side. You need to look in to your Server side code where you are passing in string for some processing.

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<div class="content wysiwyg-content">
Hello experts,<br />
I am developing a web application in .Net 4.0, where I need to use Imagebutton within UpdatePanel.<br />
<br />
Everything is working fine i.e. I am able to do asynchronouse postback in all browsers except Latest version of IE IE11.<br />
<br />
I registered Imagebutton Asyncpostbackevent in scriptmanager but still not able to do asyn. postback. <br />
<br />
Everytime I am getting error as in screen-shot attached.<br />
<a href="https://filedb.experts-exchange.com/incoming/2013/12_w50/692637/pratham.png" target="_blank" title="Javascript Error (26 KB)"><img alt="Javascript Error" class="file-block lazyload" style="max-width: 461px;" data-src="https://filedb.experts-exchange.com/incoming/2013/12_w50/692637/pratham.png" /></a><br />
<a href="https://filedb.experts-exchange.com/incoming/2013/12_w50/692638/pratham-2.png" target="_blank" title="Javascript Error in Debugger Window (59 KB)"><img alt="Javascript Error in Debugger Window" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2013/12_w50/800_692638/pratham-2.png" /></a>
</div>
</div>


pratham-2.png

pratham.png

Hello experts,
I am developing a web application in .Net 4.0, where I need to use Imagebutton within UpdatePanel.

Everything is working fine i.e. I am able to do asynchronouse postback in all browsers except Latest version of IE IE11.

I registered Imagebutton Asyncpostbackevent in scriptmanager but still not able to do asyn. postback. 

Everytime I am getting error as in screen-shot attached.




Imagebutton Postback issue with IE11 and Updatepanel

Web browsers are applications used primarily to display documents, files and media from the Internet, identified by a Uniform Resource Identifier (URI) that can be a page, image, video or other file. Some browsers require the use of add-ons or extensions to safely render the information they receive; others have systems built into them to perform the same functions.

Web Browsers

The successor to Active Server Pages, ASP.NET websites utilize the .NET framework to produce dynamic, data and content-driven web applications and services. ASP.NET code can be written using any .NET supported language. As of 2009, ASP.NET can also apply the Model-View-Controller (MVC) pattern to web applications

ASP.NET

Asynchronous JavaScript and XML (AJAX) is a group of interrelated Web development techniques used on the client-side to create asynchronous Web applications. With AJAX, web applications can send data to and retrieve from a server asynchronously (in the background) without interfering with the display and behavior of the existing page. HTML and CSS can be used in combination to mark up and style information. The Document Object Model (DOM) is accessed with JavaScript to dynamically display and allow interaction with the information presented.