Hi,
To my knowledge, in the forum module any locked thread is not readily identifiable. I mean unless you open the thread and try to post something, you cannot find out that the thread is locked.

I want to add a 'lock icon' or 'change font' to the locked threads to make it simple for the user.

But to customize the forum module,
1.There are no code behind files available to do it in the DNN installation Desktop Modules/Forum.
2.In spite of a thread being locked, the 'Forum_Post" table will have the 'locked' column set to '0' instead  has 'pinned' column set to '1'.

Kindly help me to achieve my task of associating an icon or change the font of a post to show it is locked.

Also let me know if I need to work with source code installation to find code behind files of all in built modules.

Thanks
Naraen

Thanks for the quick reply, but When I tried to recreate the scenario and found the following. 1. A new thread which is locked during creation or a thread with no replies displays the lock icon correctly. 2. Where as when we lock a thread with replies, the lock icon is not displayed. I tried this by creating random threads with and without replies and concluded the above behavior. Is this a bug or am I missing something ?