When I attempt to filter a BO on a custom property, the debugger tells that the specified column does not exist.  It is true that it cannot be found in the DB, but it is on the BO.  Is there a trick to filtering on a custom property?

Thanks,
Bill

One other point that I saw in regards to your grid...if you do not have a custom property descriptor setup, it will not show up in a grid.  You will need to override the GetCustomBindablePropertyDescriptors method on the BO and provide a ReflectionPropertyDescriptor.