I've got a list of user names and avatars that I'd like to match to the list of users in my DNN6 portal, and update the user's profile avatar when there's a match.

How would I go about updating a user's avatar programatically, given the user's UserID?  As far as I've been able to gather, there's a number stored in the UserProfile table, and the avatar stored in a subdirectory of the portal's /Users directory, but I cannot find a link between the two.

Seems to work so far, except that DNN is wanting its User Pictures to be in the Users/Number/Number/Number folder, so I'm getting a broken link in the Forums.

For myself (with a UserID of 19), I'm given Users/019/19/19/ which makes sense. However, I'm seeing folders such as:

Users/227/83/483/
Users/233/89/489/

At the moment, I'm baffled as to how DNN comes up with these folder names, particularly the number right after Users/ (assuming the next two numbers are the UserID's last two and three digits.

Finally found what I was looking for in DotNetNuke.Common.Utilities.PathUtils.cs.

The user file path is %Portal%/Users/(UserID AND 255)/(UserID Mod 100)/UserID/, with the first two values padded to three and two digits respectively.