I am looking for a single column drop down, not a grid component. I am binding the drop down list to a collection of objects. I am using an ItemTemplate to compose the text in the drop down list from multiple properties in that object (in this case company name and company number). I would like the user to be able to filter based on multiple properties, but the current implementation apparently only supports a single property name, neither multiple properties, nor lambda expressions work. So to reiterate, I need a single column (created from multiple properties via an ItemTemplate) and I need to let the user filter against the entire text in that displayed column.
At the moment, I have created a synthetic property containing the contents of the multiple properties I need to filter against and set the singular allowed property to that property.