/// <summary>
/// Event-handler when user clicks "Confirm Order"
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ConfirmOrderButton_Click(object sender, EventArgs e)
{
// check if the user added something to the cart
if (TotalAmount == 0m)
{
MessageBox.Show("Please add book(s) to the order first");
BookList.Focus();
}
else if (BookList.SelectedItem != null)
{
DialogResult dialogResult = MessageBox.Show("Please confirm your order", "Confirm your order", MessageBoxButtons.YesNo);
if (dialogResult == DialogResult.Yes)
{
int CurrQty = 0;
int CurrBookID = 0;
int CurrCustID = 0;
decimal CurrSubtotalAmount = 0;
decimal CurrTaxAmount = 0;
decimal CurrTotalAmount = 0;
string tempStr = null;
int MaxOrderID = 0;
//InsertIntoOrdersTable(CurrCustID, SubtotalAmount, TaxAmount, TotalAmount);
foreach (DataGridViewRow row in OrderSummarydataGridView.Rows)
{
CurrCustID = Convert.ToInt32(row.Cells["Customer_ID"].Value);
tempStr = row.Cells["Price"].Value.ToString();
tempStr = tempStr.Replace("$", "");
CurrSubtotalAmount = Convert.ToDecimal(row.Cells["Quantity"].Value) * Convert.ToDecimal(tempStr);
CurrTaxAmount = Math.Round(CurrSubtotalAmount * 0.1m, 2);
CurrTotalAmount = CurrSubtotalAmount + CurrTaxAmount;
CurrBookID = Convert.ToInt32(row.Cells["Book_ID"].Value);
CurrQty = Convert.ToInt32(row.Cells["Quantity"].Value);
InsertIntoOrdersTable(CurrCustID, CurrSubtotalAmount, CurrTaxAmount, CurrTotalAmount);
MaxOrderID = MAX_ID_FROM_ORDER_TABLE();
InsertIntoOrderDetailsTable(MaxOrderID, CurrBookID, CurrQty, CurrSubtotalAmount);
}
}
else if (dialogResult == DialogResult.No)
{
//do something else
}
}
}
private void AddToCart_Click(object sender, System.EventArgs e)
{
if (BookList.SelectedItem == null || CustomerList.SelectedItem == null)
{
// user has not chosen a book
MessageBox.Show("Please choose a book and a customer first");
BookList.Focus();
}
else if (QuantityBox.Value == 0 && (BookList.SelectedItem != null && CustomerList.SelectedItem != null))
{
// user has not chosen the quantity (it is still 0)
MessageBox.Show("Please set \"Quantity\" to a non-zero positive value");
QuantityBox.Focus();
}
else if (Math.Round(QuantityBox.Value) == 0 ||
QuantityBox.Value / Math.Round(QuantityBox.Value) != 1
)
{
// user has chosen 0 books
MessageBox.Show("Please set \"Quantity\" to a whole number");
QuantityBox.Focus();
QuantityBox.Value = 0;
}
else
{
string selectedTitle = RetrievedBooks.Tables[0].Rows[BookList.SelectedIndex]["title"].ToString();
decimal selectedPrice = decimal.Parse(RetrievedBooks.Tables[0].Rows[BookList.SelectedIndex]["price"].ToString());
int selectedCustID = Convert.ToInt32(CustomerIDStorage[CustomerList.SelectedIndex]);
string selectedCustName = RetrievedCustomers.Tables[0].Rows[CustomerList.SelectedIndex]["first_name"].ToString() + " " + RetrievedCustomers.Tables[0].Rows[CustomerList.SelectedIndex]["last_name"].ToString();
int selectedBookID = Convert.ToInt32(BookIDStorage[BookList.SelectedIndex]);
// calculate amount fields
SubtotalAmount += Math.Round(QuantityBox.Value * selectedPrice, 2); // calculate subtotal field
TaxAmount = Math.Round(0.1m * SubtotalAmount, 2); // calculate tax. 10% of SubtotalAmount
TotalAmount = SubtotalAmount + TaxAmount; // calculate the total amount. SubtotalAmount + TaxAmount
// update amount fields
UpdateAmountFields(SubtotalAmount, TaxAmount, TotalAmount);
// add selected book and QTY to the DataGridView
OrderSummarydataGridView.Rows.Add(selectedBookID, selectedTitle, QuantityBox.Value, "$" + selectedPrice, "$" + QuantityBox.Value * selectedPrice, selectedCustID, selectedCustName);
}
}
/// <summary>
/// Event-handler when user clicks "Confirm Order"
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ConfirmOrderButton_Click(object sender, EventArgs e)
{
// check if the user added something to the cart
if (TotalAmount == 0m)
{
MessageBox.Show("Please add book(s) to the order first");
BookList.Focus();
}
else if (BookList.SelectedItem != null)
{
DialogResult dialogResult = MessageBox.Show("Please confirm your order", "Confirm your order", MessageBoxButtons.YesNo);
if (dialogResult == DialogResult.Yes)
{
// write the order summary to the orders.txt file within the same directory
WriteOrderSummaryToFile();
}
else if (dialogResult == DialogResult.No)
{
//do something else
}
}
}
private static void AddBook()
{
Console.Write("Enter the title of your book: ");
string title = Console.ReadLine();
while (title.Trim() == "")
{
Console.Write("Enter the correct title for your book: ");
title = Console.ReadLine();
}
Console.Write("Enter the price of your book (Leave blank or type some ohter values to set the price as 0 dollars) : ");
try {
double price = Convert.ToDouble(Console.ReadLine());
Book book = new Book(title, price);
BookList.AddBook(book);
} catch (Exception) {
Book book = new Book(title);
BookList.AddBook(book);
}
}
private void AddToCart_Click(object sender, System.EventArgs e)
{
if (BookList.SelectedItem == null)
{
// user has not chosen a book
MessageBox.Show("Please choose the book first");
BookList.Focus();
}
else if (QuantityBox.Value == 0 && BookList.SelectedItem != null)
{
// user has not chosen the quantity (it is still 0)
MessageBox.Show("Please set \"Quantity\" to a non-zero positive value");
QuantityBox.Focus();
}
else if (Math.Round(QuantityBox.Value) == 0 ||
QuantityBox.Value / Math.Round(QuantityBox.Value) != 1
)
{
// user has chosen 0 books
MessageBox.Show("Please set \"Quantity\" to a whole number");
QuantityBox.Focus();
QuantityBox.Value = 0;
}
else
{
// calculate amount fields
SubtotalAmount += Math.Round(QuantityBox.Value * Books[BookList.SelectedIndex].Price, 2); // calculate subtotal field
TaxAmount = Math.Round(0.1m * SubtotalAmount, 2); // calculate tax. 10% of SubtotalAmount
TotalAmount = SubtotalAmount + TaxAmount; // calculate the total amount. SubtotalAmount + TaxAmount
// update amount fields
UpdateAmountFields(SubtotalAmount, TaxAmount, TotalAmount);
// add selected book and QTY to the DataGridView
OrderSummarydataGridView.Rows.Add(Books[BookList.SelectedIndex].Title, QuantityBox.Value, "$" + Books[BookList.SelectedIndex].Price, "$" + QuantityBox.Value * Books[BookList.SelectedIndex].Price);
}
}
private static void DisplayBooks()
{
BookList.DisplayBooks();
}