public BookPurchaseResponse PurchaseBooks(BookPurchaseInfo info)
{
BookPurchaseResponse response = new BookPurchaseResponse();
bool inStock = true;
float price = 0.0f;
List <Book> bookList = getAllBook();
float budget = info.budget;
Dictionary <int, int> items = info.items;
foreach (KeyValuePair <int, int> entry in items)
{
Book b = bookList[entry.Key - 1];
int qty = entry.Value;
if (qty > b.Stock)
{
inStock = false;
}
price += qty * b.Price;
}
if (!inStock)
{
response.result = false;
response.response += " No enough stocks !";
}
if (price > budget)
{
response.result = false;
response.response += " “No enough money !";
}
if (inStock && price <= budget)
{
response.result = true;
response.response = (budget - price).ToString();
}
return(response);
}
protected void btnPurchase_Click(object sender, EventArgs e)
{
int budget = Convert.ToInt32(budgettxt.Text);
int numberOfRows = Table1.Rows.Count;
IBookPurchaseWebService bookPurchase = new BookPurchaseWebService();
BookPurchaseInfo info = new BookPurchaseInfo();
info.budget = budget;
Dictionary <int, int> items = new Dictionary <int, int>();
for (int i = 1; i <= Table1.Rows.Count; i++)
{
TextBox numbertxt = (TextBox)FindControl("numbertxt" + i);
TextBox amounttxt = (TextBox)FindControl("amounttxt" + i);
items.Add(Convert.ToInt32(numbertxt.Text), Convert.ToInt32(amounttxt.Text));
}
info.items = items;
BookPurchaseResponse response = bookPurchase.PurchaseBooks(info);
responsetxt.Text = response.response;
}