Hide region

Topics: Prism v2 - Silverlight 3
Mar 17, 2010 at 6:00 PM


Is it possible to hide a region when there are no active views?

Basically I'd like to collapse a region if no views are being displayed within the shell.

Many thanks,


Apr 7, 2010 at 4:18 PM
Edited Apr 7, 2010 at 4:44 PM

Hi Lee,

Usually if an ItemsControl (ContentControl) does not have any items (content) it is not shown, unless its Width/Height is explicitly set. In this kind of scenario, you could create a RegionBehavior (concept explained here) that changes the visibility (Visible|Collapsed) of the host control based on the amount of views inside the region. Your RegionBehavior will probably need to implement IHostAwareRegionBehavior.

Please let me know if this helps.

Damian Schenkelman

Jul 9, 2012 at 11:53 AM

For anyone hitting this page and looking for Prism v2 support - check this link for a solution offered by the Composite WPF codeplex site:

"Hide/Show views in regions" - http://compositewpf.codeplex.com/wikipage?title=Hide/Show%20views%20in%20regions