private void txtIso_KeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Return)
{
string iso2 = txtIso.Text.ToUpper();
int newPosition = CountryArray.GetPosition(iso2);
if (newPosition >= 0)
{
curPosition = newPosition;
}
else
{
ShowErrorDialog(iso2);
}
fillFields();
}
}