public void ResetHeartbeatLock()
{
using (CarrotCMSDataContext _db = CarrotCMSDataContext.Create()) {
carrot_RootContent rc = CompiledQueries.cqGetRootContentTbl(_db, this.SiteID, this.Root_ContentID);
rc.EditHeartbeat = DateTime.UtcNow.AddHours(-2);
rc.Heartbeat_UserId = null;
_db.SubmitChanges();
}
}