What is the standard location for global enums in an ASP.NET Web API app?

Question

I want to declare an enum in my ASP.NET Web API project, a member of which will be passed from the Controller to the Repository, a la:

enum SaveTypes
{
MSAccess,
SQLite,
CSV,
XML,
JSON
};

Controller

SaveTypes st = SaveTypes.MSAccess;
_inventoryItemRepository.PostInventoryItem(id, ... st);

Repository

public void PostInventoryItem(string id, ... SaveTypes _st)
{
    if (st == SaveTypes.MSAccess)
    {
    //give it to the fake database
    }
    else if (st == SaveTypes.FoieGrasBar) 
    ...

Where would be the best place to declare this enum - in a new class? In Global.asax.cs? Somewhere else?

Note: I do realize that the "right" way to do it might be to create multiple implementations of the interface implementation, one that will save to Access, another to SQLite, etc.

Answer 1

I think the best way for enums in ASP.NET MVC project is DataAccess directory:

• DataAccess project
  • Base
  • Entities
  • Enums
  • Repositories
  • ...
• Site project
  • Controllers
  • Models
  • Views
  • Services
  • ...