convert DictionaryBase.Dictionary(of Integer,xyz) to List(of xyz)

Hi All,
I need help in conversion of DictionaryBase.Dictionary(of Integer, xyz) Into List(of xyz).  I tried,
CType(Dictionary.Cast(Of List(Of xyz))(), Global.System.Collections.Generic.List(Of xyz)), But runtime it is throwing an error source is not Ienumerable <> Please help

thanks