Missing Unload event in Silverlight 2

Silverlight 2 is missing the unload event for a UserControl. Has anyone implemented a workaround f开发者_如何学Goor this?

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you might want to look here: http://gallery.expression.microsoft.com/en-us/SLUnloadedBehavior

The code is for SL 3 but if you remove the behavior code it should work for Sl2

@KeithMahony

One scenario is that you want to prevent event memory leaks, one of the pitfalls of silverlight development that most people tend to ignore.

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I think the closest you'll get is Application Services which let you detect when the Silverlight application is closing and respond to it. If you're using a Navigation application then you can hook into the Navigating event of the parent frame to determine that the page is "unloading".

What are you trying to do that requires a UserControl to respond to an unloading event?

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Consider using Silverlight 4. I comes with - at last - an Unloaded event.