protected void PurchaseBook(object sender, EventArgs e)
{
float f;
bool var = true;
if (!(float.TryParse(budget.Text, out f)))
{
outputPurchase.Text = "Wrong Input";
}
else
{
float Budget = float.Parse(budget.Text);
Dictionary <int, int> buy = new Dictionary <int, int>();
//buy.Add(Int32.Parse(TextBox1.Text), Int32.Parse(TextBox2.Text));
Console.WriteLine("rows");
Console.WriteLine(Table3.Rows.Count);
Label11.Text = (Table3.Rows.Count).ToString();
for (var i = 0; i < Table3.Rows.Count; i++)
{
try
{
string numID = "numBook" + (i);
string qtyID = "quantity" + (i);
TableRow row = Table3.Rows[i];
Label10.Text = ((TextBox)row.Cells[1].FindControl(numID)).Text;
Label9.Text = ((TextBox)row.Cells[3].FindControl(qtyID)).Text;
string textCell = ((TextBox)row.Cells[1].FindControl(numID)).Text;
string textCell2 = ((TextBox)row.Cells[3].FindControl(qtyID)).Text;
int n;
if (textCell == "" || textCell2 == "")
{
buy.Add(Int32.Parse(textCell), Int32.Parse(textCell2));
}
else if (!(Int32.TryParse(textCell, out n)) || !(Int32.TryParse(textCell2, out n)))
{
var = false;
break;
}
else
{
buy.Add(Int32.Parse(textCell), Int32.Parse(textCell2));
}
}
catch
{
}
}
if (var == true)
{
BookPurchaseResponse output = service.BookPurchaseInfo(Budget, buy);
outputPurchase.Text = output.response;
}
else
{
outputPurchase.Text = "wrong input";
}
}
}
// change "books.txt" the path to the location of books.txt
public BookPurchaseResponse BookPurchaseInfo(float budget, Dictionary <int, int> items)
{
List <IBook> books = this.GetAllBooks();
float price = 0;
BookPurchaseResponse response = new BookPurchaseResponse();
foreach (int key in items.Keys)
{
if (key > (books.Count))
{
response.result = false;
response.response = "The book does not exist";
return(response);
}
else if (books[key - 1].Stock < items[key])
{
response.result = false;
response.response = "No enough stocks";
return(response);
}
price = price + (books[key - 1].Price * items[key]);
}
if (price > budget)
{
response.result = false;
response.response = "No enough money";
return(response);
}
float result = budget - price;
response.result = true;
response.response = Convert.ToString(result);
return(response);
}