Mapping enum types in NHibernate Designer

How do you map enum types using NHibernate designer. I understand how to define the enum type but I am at a loss for how to populate it with values. Any help is greatly appreciated

You would populate the enum values in the normal way in your C# or Visual Basic enum definition. For example:

public enum Colour {
  Red = 1,
  Yellow = 2,
  Blue = 3,
  HotPink = 875
}

I may be misunderstanding your question though -- can you clarify what you're having trouble with?

i guess the confusion comes about b/c i thought i would be able to define the enum in the designer and then have it generated along with the entities. Is this not the case? Do i have to define the enum class manually outside of the designer?

Yes -- you define the enum class in the normal way in code, the designer just gives you a way to use it in your entities.