DotNetNuke Skinning – Collapsible Containers

One feature you’ll see in DotNetNuke containers is the ability to collapse the container using an icon, typically in the upper right hand corner of the container. Implementing collapsible containers in DotNetNuke is relatively simple.

The control that causes a panel to expand or collapse is the Visibility control. To make this available to your skin, add the following code at the top of the ASCX file:

<%@ Register TagPrefix="dnn"
   TagName="VISIBILITY"
   Src="~/Admin/Containers/Visibility.ascx" %>

Then add the following markup where you want the icon to display:

<dnn:VISIBILITY runat="server" id="dnnVISIBILITY" />

You would typically add this to the right hand side of the container’s title area.

It’s really just that simple. This gives you the default +/- icon and automatically handles the expand/collapse feature of the container.

You can also modify the following attributes:

AttributeDescriptions
AnimationFramesThe number of frames to use when animating the opening and closing of the container. The default number is 5. A larger number will slow down the animation.
BorderWidthTypically zero (0), this value controls the width of the border around the expand or collapse image.
MinIconYou can replace the icon representing the minimized state by specifying it in this attribute.
MaxIconYou can replace the icon representing the maximized state by specifying it in this attribute.

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About Dave Bush

Dave Bush is a .NET programmer and Certified ScrumMaster who is passionate about managing risk as it relates to developing software. When he is not writing or speaking about topics related to Application Lifecycle Risk Management (ALRM), he is an example to his peers as he develops web sites in the ASP.NET environment using industry best practices.