In a module being written for DNN 4.3.7 and later I need to be able to lookup user contact information by Displayname (or Fullname or even Firstname + ' ' + Lastname)  but find that the UserController class has no GetUsersbyDisplayname or GetUsersbyFullname method. Since Displayname is not a defined PropertyName, neither can I use the new UserController.GetUsersbyProfileProperty method. Although there are many ways around this: custom query on the Users table, use GetUsersbyProfileProperty to retrieve those matching the Lastname then enumerate the resulting UserInfo objects for matching Firstname, etc., I'm wondering if this is a common need that should be addressed in future versions. I also noticed that search by Displayname is one of the few not available on the Admin/User Accounts page. Since the Users table does not have an index defined on the Displayname column, queries on this column would be less efficient in a site with many users.

Am I overlooking a pre-defined method for this lookup or have others found it lacking as well?