<div>
<div class="content wysiwyg-content">
I have 2 collapsible panels. The top panel presents expanded on page load, while the second one is collapsed. When the page loads, or whenever there is a postback, the second panel expands into the first panel. The second panel has several subpanels and various other controls including grids and command buttons. <br />
I added style=&quot;overflow:hidden&quot; to the panel content of the second panel but now all the contents of the second panel do not display at all. It solved the flickering, but does not display anything. <br />
<br />
Does anyone have any idea what is wrong here? 
</div>
</div>


I have 2 collapsible panels. The top panel presents expanded on page load, while the second one is collapsed. When the page loads, or whenever there is a postback, the second panel expands into the first panel. The second panel has several subpanels and various other controls including grids and command buttons. 
I added style="overflow:hidden" to the panel content of the second panel but now all the contents of the second panel do not display at all. It solved the flickering, but does not display anything. 

Does anyone have any idea what is wrong here? 

AjaxToolkit CollapsiblePanelExtender ContentPanel  style=&quot;overflow:hidden&quot; Displays Blank Panel

The .NET Framework is not specific to any one programming language; rather, it includes a library of functions that allows developers to rapidly build applications. Several supported languages include C#, VB.NET, C++ or ASP.NET.

.NET Programming

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

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).

AjaxToolkit CollapsiblePanelExtender ContentPanel style=&quot;overflow:hidden&quot; Displays Blank Panel

AjaxToolkit CollapsiblePanelExtender ContentPanel style="overflow:hidden" Displays Blank Panel