private void AddBooks_Click(object sender, EventArgs e)
{
CustomerID = Convert.ToInt32(textBox1.Text);
int NewSaleID = ControlObj.ReturnNextSaleID() + 1;
var BookIDs = string.Join(",", CartPointer.Select(x => x.ToString()).ToArray());
if (String.IsNullOrEmpty(BookIDs))
{
MessageBox.Show("Cart Is Empty");
return;
}
var BookIDStr = "( " + BookIDs + " )";
DataTable CartInfo = ControlObj.DisplayCart(BookIDStr);
string TotalSalePrice = Convert.ToString(CartInfo.Compute("Sum(Price)", ""));
//Add to Sales History
ControlObj.AddSaleToHistory(Convert.ToString(NewSaleID), TotalSalePrice, Convert.ToString(CustomerID), BranchID.ToString(), EmpID.ToString());
//Did The Sold books
foreach (int id in CartPointer)
{
ControlObj.FillSoldBooks(Convert.ToString(NewSaleID), Convert.ToString(id));
}
MessageBox.Show("Transaction Complete");
}
