How to aggregate bindings in Silverlight UserControl

Posted by Peter Wone on Stack Overflow See other posts from Stack Overflow or by Peter Wone
Published on 2010-02-05T10:12:53Z Indexed on 2010/04/01 0:53 UTC
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silverlight-4.0

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wpf-binding

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dependency-properties

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Silverlight

Imagine a UserControl containing some sort of ItemsControl. The UserControl as a whole has a DataContext, but you also need to expose the ItemsSource of the ItemsControl.

I have tried all manner of arrangements, and eventually passed a DomainDataSource as a UserControl dependency property named DDS, and bound the ItemsControl like this:

ItemsSource="{Binding DDS.Data, ElementName=userControl}"

It works, but this is mucky, and with Silverlight mucky is nearly always a sign of incorrect approach. Your advice is sought.

It looks like multi-bindings might be the answer to this.

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