'Declaration
Public MustInherit Class ComboBoxBaseBuilder (Of T,TControl As ComboBoxBase(Of T), TBuilder As ComboBoxBaseBuilder(Of T,TControl,TBuilder)) Inherits DropDownBuilder(Of T,TControl,TBuilder)
public abstract class ComboBoxBaseBuilder<T,TControl,TBuilder> : DropDownBuilder<T,TControl,TBuilder> where TControl: ComboBoxBase<T> where TBuilder: ComboBoxBaseBuilder<T,TControl,TBuilder>