Silverlight 4 version

Nov 19, 2009 at 3:10 PM

Since Silverlight 4 beta is announced, is there a plan for Prism for SL4?

Nov 20, 2009 at 1:48 AM

We plan to start working on the next version of Prism shortly after the first of the year. This version will support .NET 4.0 and SL4. As we get closer, I will make an announcement on my blog: Additionally, the SE team looked at how the current Prism code works with SL4 beta bits. We will have the SE team blog about their learnings in case people want to start working with SL4 before we do.

p&p Client Team


Nov 20, 2009 at 3:43 AM

but how about WPF 4.0?

Nov 20, 2009 at 6:38 AM
Edited Nov 20, 2009 at 5:35 PM

WPF 4.0 will part of this release as well.

Nov 20, 2009 at 9:28 PM


We have just blogged about Prism-v2.1 migrated to Silverlight 4 and provided the source code. You can read about it here.

Damian Schenkelman

Dec 3, 2009 at 10:27 PM
Edited Dec 3, 2009 at 10:30 PM

Any rough idea of how much the ICommand-related enhancements in SL4 are going to simplify commanding in a SL4+Prism app? Is that going to get only slightly easier with SL4? Significantly easier?

Currently in SL3, adding commands for non-button controls is rather "involved":

BTW: Mike Taulty has some initial reactions to SL4's new commanding support here:


Dec 7, 2009 at 3:11 PM
Edited Dec 7, 2009 at 3:11 PM

Hi Alex,

I have created a blog post that talks about this. You can check it out here.

Please let me know if this helps.

Damian Schenkelman

Dec 7, 2009 at 6:41 PM
Edited Dec 7, 2009 at 6:41 PM

Thanks very much Damian.  That's very helpful.


Dec 8, 2009 at 2:17 PM
Edited Dec 8, 2009 at 2:54 PM


I am trying to use Visual Studio 2010 Silverlight 4 and the bits Damien mentions in a post above for Prism.  I am trying to get the my application to work Out of Browser.  I am not getting the IModuleManager to Load the other xap files successfully.  I would like to know what is necessary to get this work for creating a Silverlight 4 Prism set of projects.