Creating multi level discussion groups programmatically

Recently, I was required to create a multiple level discussion groups.

As we know, Sharepoint 2010 offers only one level of Discussion group (at least as far as I know) i.e., First level is Discussion Group and the inner level is Discussion Threads (individual posts).


What did I do, I create the discussion group programmatically and move the created group under an existing discussion group. This way, I was able to achieve multiple levels of discussion groups.

 var web = SPContext.Current.Web;    
 var discussionList = web.Lists[DISCUSSION_LIST_NAME];
 var discussionContentType = 

web.AvailableContentTypes[DISCUSSION_CONTENT_TYPE_NAME];

web.AllowUnsafeUpdates = true;
  

 var newDiscussionItem = SPUtility.CreateNewDiscussion(discussionList, title);
 newDiscussionItem["Title"] = title;
 newDiscussionItem["ContentTypeId"] = discussionContentType.Id;
 newDiscussionItem["ContentType"] = discussionContentType.Name;

newDiscussionItem.Update();

 //if the discussion group is a child discussion (Thread) 

 //then move the discussion group 

 //to a sub level (under its parent discussion group)
 if (parentDiscussionID != -1)
 {
    var parentDiscussionGroup = discussionList.GetItemById(parentDiscussionID);
    var destinationUrl = parentDiscussionGroup.Url + "/" 

+ newDiscussionItem.Folder.Name;
    newDiscussionItem.Folder.MoveTo(destinationUrl);
 }
 web.AllowUnsafeUpdates = false;

Using the above method of .Folder.MoveTo() any SPListItem can be moved to any destination. Hope this would help someone else.