private void BtnEditClick(object sender, EventArgs e)
{
var selectedVal = _lbCurrencies.SelectedValue;
if (!string.IsNullOrEmpty(selectedVal))
{
var cc = new CurrencyCode(selectedVal);
_txtPriceIndex.Text = cc.PriceIndex.ToString();
_dlCurrencies.Items.Cast <ListItem>().ToList().ForEach(li => li.Selected = false);
_dlCurrencies.Items.FindByValue(cc.Code).Selected = true;
}
}
private void BtnAddClick(object sender, EventArgs e)
{
var currencyCode = _dlCurrencies.SelectedItem.Value;
var priceIndex = _txtPriceIndex.Text;
var currency = new CurrencyCode(currencyCode, priceIndex);
var existing = _lbCurrencies.Items.Cast <ListItem>().FirstOrDefault(li => li.Value.StartsWith(currencyCode));
if (existing != null)
{
_lbCurrencies.Items.Remove(existing);
}
_lbCurrencies.Items.Add(currency.ToListItem());
SortItems();
Save();
}