private void addButton_Click(object sender, EventArgs e)
{
var form = new DiscountForm();
if (form.ShowDialog() != DialogResult.OK)
{
return;
}
iDiscountBindingSource.Add(form.Discount);
var index = iDiscountBindingSource.Count;
WriteDiscountInfo(form.Discount, index - 1);
}
private void modifyButton_Click(object sender, EventArgs e)
{
if (iDiscountBindingSource.Current == null)
{
return;
}
var form = new DiscountForm
{
Discount = iDiscountBindingSource.Current as IDiscount
};
if (form.ShowDialog() != DialogResult.OK)
{
return;
}
var index = iDiscountBindingSource.IndexOf(iDiscountBindingSource.Current);
iDiscountBindingSource.Insert(index, form.Discount);
iDiscountBindingSource.RemoveAt(index + 1);
WriteDiscountInfo(form.Discount, index);
}