private void listBox1_AfterLabelEdit(object sender, LabelEditEventArgs e)
{
if (IsNewItem)
{
if (e.Label != null)
{
list.Add(e.Label);
}
else
{
list.Add(oldName);
}
}
else
{
if (e.Label != null)
{
list.Rename(oldName, e.Label);
}
}
IsNewItem = false;
}