How to migrate from SL4 to SL5

Q: I’m using Silverlight Viewer and I need to migrate from Silverlight 4 to Silverlight 5. What should I do?

A: Firstly, you need to download latest Silverlight 5 installer and install it:

In order to use Silverlight Viewer in Silverlight 5 application you need to install the following packages:

Silverlight 5 Tools for Visual Studio 2010 SP1

Silverlight 5 Toolkit

Silverlight 5 Developer Runtime – Optionally allows you to debug Silverlight applications.

Then we have an application with Silverlight 4 target framework which hosts our component.

Let’s say this is a sample from our site:

Make sure that it works fine with Silverlight 4.

Then we need to change target Silverlight version:

Now we need to update references in the Client side project:

  1. Delete the following referencies:
  • System.Windows.Controls
  • System.Windows.Controls.Input.Toolkit
  • System.Windows.Controls.Toolkit
    2. Add them again and make sure they are targeting Silverlight 5

One more change you need to do is to add a reference on the following library:


That’s all we need to do in order to migrate our application to Silverlight 5.

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