protected void btnAddItem_Click(object sender, EventArgs e)
{
if (!Page.IsValid)
return;
if (InvoiceData.GetInvoiceData().InvoiceItems.Count >= 100)
{
lblInvoiceTemplateMessage.Text = "The maximum number of items reached.";
lblInvoiceTemplateMessage.Visible = true;
return;
}
InvoiceItem newInvoiceItem = new InvoiceItem(textBoxProductCode.Text, textBoxProductDescription.Text,
textBoxProductName.Text, double.Parse(textBoxProductPrice.Text.Trim()), int.Parse(textBoxProductQuantity.Text.Trim()));
InvoiceData.GetInvoiceData().AddItem(newInvoiceItem);
ShowItemsCount();
LoadInvoiceItems();
}
public void AddItem(InvoiceItem invoiceItem)
{
invoiceItems.Add(invoiceItem);
totalInvoice += invoiceItem.ItemPrice;
}