UpdateSourceTrigger / Silverlight

In the MSDN documentation, it documents that you can set the UpdateSourceTrigger to an event of your choosing...

MSDN UpdateSourceTrigger Documentation

I can't seem to get this to work in Silverlight, as it is seems to want either Explicit or Default...

If this is only for WPF - how can you tell from the documentation that Silverl开发者_高级运维ight is excluded?

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The UpdateSourceTrigger is not an event, but an enumeration.

See http://msdn.microsoft.com/en-us/library/system.windows.data.updatesourcetrigger.aspx

So, what you are seeing are the choices available to Silverlight.

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Silverlight 5 adds support for PropertyChanged for UpdateSourceTrigger. You can find an example here.