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I want to use a webservice method as datasource for my autocomplete box. The method should take the text input of the box as filter argument and populate the filtered result to the autocomplete list. I cannot find any documentation on this. In silverlight's autocomplete box it is possible to use the populating event.
http://msdn.microsoft.com/en-us/library/system.windows.controls.autocompletebox.populating%28v=vs.95%29.aspx
http://msdn.microsoft.com/en-us/library/system.windows.controls.autocompletebox.populating%28v=vs.95%29.aspx