private void btnRemove_Click(object sender, EventArgs e)
{
Discount discountSelected = discountsApplied.GetDiscount
(lstDiscounts.SelectedItems[0].Text);
//return discount to available discounts
discountsAvailable.Add
(discountSelected);
discountsApplied.Delete(discountSelected);
//unapply discount
discountsAvailable.GetDiscount
(discountSelected.DiscountID).ItemAppliedTo = "";
discountsAvailable.GetDiscount
(discountSelected.DiscountID).Amount = 0.00M;
//repopulate
populateDiscountsList();
populateTotalDiscount();
btnRemove.Enabled = false;
}
private void btnInsert_Click(object sender, EventArgs e)
{
Discount discountSelected = discountsAvailable.GetDiscount
(discountID);
//save discount
try
{
discountsAvailable.GetDiscount(txtDiscountID.Text).Percent = Convert.ToDecimal(txtPercentage.Text);
}
catch (Exception ex)
{
log.Error(ex);
Prompt.ShowError(ex.Message);
}
if (chkValidate.Checked == true)
{
if (isDiscountValid(discountSelected))
{
if (discountsApplied.Count <= DiscountAdapter.Instance.GetDiscountLimit() - 1)
{
discountSelected.ItemAppliedTo = cboItemsToApplyTo.Text;
//add discount to applied discounts
discountsApplied.Add
(discountSelected);
//remove discount to available discounts
discountsAvailable.Delete(discountSelected);
}
else
{
Prompt.ShowError("Maximum number of applicable discounts is reached.");
}
}
else
{
Prompt.ShowError("This discount is not applicable.");
}
}
else
{
//if validation is disabled
discountSelected.ItemAppliedTo = cboItemsToApplyTo.Text;
//add discount to applied discounts
discountsApplied.Add
(discountSelected);
//remove discount to available discounts
discountsAvailable.Delete(discountSelected);
}
//repopulate
populateDiscountsList();
populateTotalDiscount();
//clear edit fields
txtDiscountID.Clear();
txtDiscountDescription.Clear();
txtPercentage.Clear();
txtPercentage.ReadOnly = true;
btnInsert.Enabled = false;
//disable application
disableDiscountApplication();
}