private void cb_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
ComboBox cb = sender as ComboBox;
foreach (var item in cb.Items)
{
// so sánh các gần đúng.
if (StaticClass.ConvertToUnsign(item.ToString().ToUpper()).IndexOf(StaticClass.ConvertToUnsign(cb.Text.ToUpper())) >= 0)
{
cb.SelectedItem = item;
break;
}
}
}
}
