>As someone coming into silverlight programming from the ASP.NET world (and many earlier worlds), I'm absolutely astounded as to how completely broken and not-ready for BETA the combobox in Silverlight is when trying to populate it from any data source.
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>I've literally spent days trying to get a combobox in a datagrid to populate the items from a RIA domaindatasource or any other method of getting data from my entity framework (using domaindatasource) objects.
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>I've read so many contradictory/fragmented/error filled/incomplete blogs and other articles on the web that I could just hurl.
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>I've yet to get it to populate (then I have to tackle setting selected item which appears more broken).
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>This is supposed to be silverlight 4. IMHO it hasn't reached an alpha release for a 1.0 version yet.
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>If anyone has a clear cut, COMPLETE and ACCURATE example of doing this I'd love to see it.

We use the Telerik RadComboBox exclusively. No such frustration. Works like ASP.NET DropDownList for the most part.