Explanation:

There are cases when your application might initially be maintaining personalization information for an anonymous user, but eventually the user logs in to your application. In that case, the user's identity changes from the assigned anonymous user identity to the identity provided by the authentication process.

When users log in (that is, when they stop being anonymous users), the MigrateAnonymous event is raised. You can handle this event to migrate information from the user's anonymous identity to the new authenticated identity, if necessary. The following code example shows how to migrate information when a user is authenticated.


 

Public Sub Profile_OnMigrateAnonymous(sender As Object, args As ProfileMigrateEventArgs)
  Dim anonymousProfile As ProfileCommon = Profile.GetProfile(args.AnonymousID)

  Profile.ZipCode = anonymousProfile.ZipCode
  Profile.CityAndState = anonymousProfile.CityAndState
  Profile.StockSymbols = anonymousProfile.StockSymbols

  ''''''''
  ' Delete the anonymous profile. If the anonymous ID is not 
  ' needed in the rest of the site, remove the anonymous cookie.

  ProfileManager.DeleteProfile(args.AnonymousID)
  AnonymousIdentificationModule.ClearAnonymousIdentifier()

  ' Delete the user row that was created for the anonymous user.
  Membership.DeleteUser(args.AnonymousID, True)
End Sub

public void Profile_OnMigrateAnonymous(object sender, ProfileMigrateEventArgs args)
{
  ProfileCommon anonymousProfile = Profile.GetProfile(args.AnonymousID);

  Profile.ZipCode = anonymousProfile.ZipCode;
  Profile.CityAndState = anonymousProfile.CityAndState;
  Profile.StockSymbols = anonymousProfile.StockSymbols;

  ////////
  // Delete the anonymous profile. If the anonymous ID is not 
  // needed in the rest of the site, remove the anonymous cookie.

  ProfileManager.DeleteProfile(args.AnonymousID);
  AnonymousIdentificationModule.ClearAnonymousIdentifier(); 

  // Delete the user row that was created for the anonymous user.
  Membership.DeleteUser(args.AnonymousID, true);

}