// when user clicks 'add to cart' button
private void button1_Click(object sender, EventArgs e)
{
// if user chooses '-- Select Book --' option
if (comboBox1.SelectedIndex == 0 || AuthorTextBox.Text == "")
{
MessageBox.Show("Please, choose a book from the list.", "Missing order details", MessageBoxButtons.OK, MessageBoxIcon.Warning);
comboBox1.Focus();
}
// if quantity box value starts with 0 or is empty
else if (QuantityTextBox.Text == "" || QuantityTextBox.Text.StartsWith("0"))
{
MessageBox.Show("Please, enter the valid number of books.", "Invalid input", MessageBoxButtons.OK, MessageBoxIcon.Error);
QuantityTextBox.Focus();
}
// if user chooses '-- Select Customer --" option
else if (CustomerComboBox.SelectedIndex == 0)
{
MessageBox.Show("Please, choose the customer", "Missing Order Details", MessageBoxButtons.OK, MessageBoxIcon.Error);
CustomerComboBox.Focus();
}
else
{
string BookID = IsbnTextBox.Text.ToString();
var index = this.DataList.Rows.Add(); // add new row and get index of this row
var lineTotal = decimal.Parse(PriceTextBox.Text.TrimStart('$')) * decimal.Parse(QuantityTextBox.Text);
this.DataList.Rows[index].Cells[0].Value = comboBox1.SelectedValue.ToString();
this.DataList.Rows[index].Cells[1].Value = decimal.Parse(PriceTextBox.Text.TrimStart('$')).ToString("C2");
this.DataList.Rows[index].Cells[2].Value = QuantityTextBox.Text;
this.DataList.Rows[index].Cells[3].Value = lineTotal.ToString("C2");
orderDetailsList.Add(new OrderDetails(BookID, int.Parse(QuantityTextBox.Text), lineTotal));
this.Lines.Add(lineTotal); // store Line Total values in the list when book is added to the DataGridView
CalculateTotalAmount(); // calculate total amount for user to pay
}
}
public void FillCustomerComboBox()
{
//Session["CustomerNames"];
DataTable dt = CustomerServiceBL.CustomerDetails.Ins.GetAllCustomerData();
CustomerComboBox.DataSource = dt;
CustomerComboBox.TextField = "Name";
CustomerComboBox.ValueField = "ID";
CustomerComboBox.DataBind();
}
public OrderCheckoutDialog(Order order)
{
_order = order;
_orderHandler = new OrderHandler();
_orderPaymentHandler = new OrderPaymentHandler();
InitializeComponent();
TotalTextBox.Text = _order.Amount.ToString(CultureInfo.InvariantCulture);
CustomerComboBox.ItemsSource = new CustomerHandler().GetCustomers();
CustomerComboBox.GetBindingExpression(PersonComboBox.ItemsSourceProperty)?.UpdateTarget();
}
public void FillCustomerComboBox()
{
DataTable dt = CustomerServiceBL.CustomerDetails.Ins.GetAllCustomerData();
DevExpress.Web.ASPxEditors.ListEditItem item = new DevExpress.Web.ASPxEditors.ListEditItem("Select All", 0);
CustomerComboBox.DataSource = dt;
CustomerComboBox.TextField = "Name";
CustomerComboBox.ValueField = "ID";
CustomerComboBox.DataBind();
CustomerComboBox.Items.Insert(0, item);
CustomerComboBox.SelectedIndex = 0;
}