Копирование элемента списка

SPSite site = new SPSite("http://localhost/");

           SPWeb web = site.OpenWeb();

           SPList list = web.Lists["Задачи"];

           SPListItem sourceItem = properties.ListItem;

           SPListItem item = list.Items.Add();

           //Копируем поля

           foreach (SPField f in sourceItem.Fields)

           {

               if (!f.ReadOnlyField && f.InternalName != "Attachments")

               {

                   item[f.InternalName] = sourceItem[f.InternalName];

               }

           }

           // Копируем вложение

           foreach (string fileName in sourceItem.Attachments)

           {

               SPFile file = sourceItem.ParentList.ParentWeb.GetFile(sourceItem.Attachments.UrlPrefix + fileName);

               byte[] bData = file.OpenBinary();

               item.Attachments.Add(fileName, bData);

           }

           item.Update();