I m new to sharepoint and our new project requirement is to migrate the contents from SP 2010 to SP 2013. we r not going to use any tools , so if we go manually what would be the approach to migrate the custom data to the next version. there is lot of custom data like features, event recievers, webparts that we have to take care of . do we have to code them again or what .
in depth reply or even some forums link will do . thanks