Elbandi

        public static void CopyListViewToClipboard(ListView listView)
        {
            StringBuilder sb = new StringBuilder();
            if (listView.SelectedItems.Count > 1)
            {
                for (int i = 0; i < listView.Columns.Count; i++)
                {
                    sb.Append(listView.Columns[i].Text);
                    if (i != listView.Columns.Count - 1)
                    {
                        sb.Append(',');
                    }
                    else
                    {
                        sb.Append(Environment.NewLine);
                    }
                }
            }
            lock (listView)
            {
                foreach (ListViewItem item in listView.SelectedItems)
                {
                    for (int i = 0; i < item.SubItems.Count; i++)
                    {
                        ListViewItem.ListViewSubItem si = item.SubItems[i];
                        sb.Append(si.Text.Contains(",") ? "\"" + si.Text + "\"" : si.Text);
                        if (i != item.SubItems.Count - 1)
                        {
                            sb.Append(',');
                        }
                        else
                        {
                            sb.Append(Environment.NewLine);
                        }
                    }
                }
            }
            Clipboard.SetText(sb.ToString());
        }