//buttons implemntaion
private void AddNewRowButton_Click(object sender, RoutedEventArgs e)
{
if (quantityTextbox.Text == "0" || unitsDropdownList.SelectedItem == null)
{
MessageBox.Show("please complete all fields ");
return;
}
ItemCalculationHelper calculationHelper = new ItemCalculationHelper
{
Quantity = double.Parse(quantityTextbox.Text),
Price = double.Parse(priceTextbox.Text),
Discount = double.Parse(discountTextbox.Text)
};
calculationHelper.Total = calculationHelper.Quantity * calculationHelper.Price;
calculationHelper.Net = calculationHelper.Total - calculationHelper.Discount;
DataItemRow dataItemRow = new DataItemRow
{
Item = itemsDropdownList.Text,
Unit = unitsDropdownList.Text,
Price = priceTextbox.Text,
Quantity = calculationHelper.Quantity.ToString(),
Total = calculationHelper.Total.ToString(),
Discount = calculationHelper.Discount.ToString(),
Net = calculationHelper.Net.ToString()
};
dataGridview.Items.Add(dataItemRow);
invoiceItems.Add(new InvoiceItems
{
ItemName = dataItemRow.Item,
ItemUnit = dataItemRow.Unit,
ItemPrice = double.Parse(dataItemRow.Price),
ItemQuantity = long.Parse(dataItemRow.Quantity),
ItemTotal = double.Parse(dataItemRow.Total),
ItemDiscount = double.Parse(dataItemRow.Discount),
ItemNet = double.Parse(dataItemRow.Net)
});
UpdateInvoiceTotal(calculationHelper.Net);
ClearAllFields();
storesDropdownList.IsEnabled = false;
}
//text Fields Change
private void quantityTextbox_TextChanged(object sender, TextChangedEventArgs e)
{
if (quantityTextbox.Text == "")
{
quantityTextbox.Text = "0";
}
if (priceTextbox.Text == "")
{
priceTextbox.Text = "0";
}
ItemCalculationHelper calculationHelper = new ItemCalculationHelper
{
Quantity = double.Parse(quantityTextbox.Text),
Price = double.Parse(priceTextbox.Text)
};
calculationHelper.Total = calculationHelper.Quantity * calculationHelper.Price;
calculationHelper.Net = calculationHelper.Total - calculationHelper.Discount;
totalTextbox.Text = calculationHelper.Total.ToString();
}
