private void InputOrderQuantity(object sender, EventArgs e)
{
string textBoxValue = "";
if (CustomLibrary.CheckTextisNumber(quantityTextBox.Text))
{
textBoxValue = quantityTextBox.Text;
}
else
{
quantityTextBox.Text = textBoxValue;
}
order.itemQuantity = (textBoxValue == "") ? 0 : int.Parse(textBoxValue);
CalculateTotalPrice();
}
private void AddCustomerData(object sender, EventArgs e)
{
outputRichTextBox.Text = "";
string message = "";
try
{
if (order.name == "")
{
message = "Please input name.";
}
if (order.contact == "")
{
message = "Please input contact.";
}
if (order.menuItem == "")
{
message = "Please select an item.";
}
if (order.itemQuantity == 0)
{
message = "Please input order quantity.";
}
if (CustomLibrary.HasDuplicateContacts(customersOrders, order.contact))
{
message = "Contact already exists. Please provide a different contact.";
}
if (message != "")
{
MessageBox.Show(message);
return;
}
else
{
OrderDetails newOrder = new OrderDetails(order.name, order.contact, order.menuItem, order.itemPrice, order.itemQuantity, order.totalPrice);
customersOrders.Add(newOrder);
outputRichTextBox.Text = newOrder.ShowOrderDetails();
Reset();
}
}
catch (Exception exception)
{
MessageBox.Show(exception.Message);
}
}