public void upload_button_pressed(object sender, EventArgs e)
{
foreach (directory_entry entry in l_explorer.get_virtual_directory())
{
FileInfo info = new FileInfo(entry.GetPath());
scp_client.Upload(info, r_explorer.get_remote_directory().GetPath() + entry.GetName());
}
l_explorer.get_virtual_directory().Clear();
l_explorer.show();
r_explorer.show();
}
