// click add to cart
private void ClickAddToCart(object _sender, EventArgs _e)
{
// get cart
ShoppingCart_S1 _cart = (ShoppingCart_S1)((ShopMaster)Master).GetCart();
// get label for response
Label _response = (Label)contentItemArea.FindControl("LabelCartAdded");
if (_response == null)
{
Trace.Warn("Shop", "Failed to find label for cart response");
return;
}
// add item
if (_cart.Add(item.ID))
{
_response.Text = string.Format("Added to cart");
_response.ForeColor = System.Drawing.Color.YellowGreen;
Response.Redirect("Cart.aspx", true);
}
else
{
_response.Text = string.Format("Failed to add to cart");
_response.ForeColor = System.Drawing.Color.Red;
}
}
// updates table
private void RefreshCartTable()
{
// get cart
ShoppingCart_S1 _cart = (ShoppingCart_S1)((ShopMaster)Master).GetCart();
// cycle through each row, except the first one
// find items w/ quantity of zero, remove row
TableRowCollection _rows = tableCart.Rows;
int i = 1;
while (i < _rows.Count)
{
TableRow _row = _rows[i];
// get ID for row
HyperLink _link = (HyperLink)_row.Cells[0].Controls[0];
int _id = Int32.Parse(_link.Text);
int _actualQuantity = _cart.Quantity(_id);
// check quantity
if (_actualQuantity <= 0)
{
_row.Cells.Clear();
_rows.Remove(_row);
Trace.Warn("cart", string.Format("removed row id: {0}", _id));
}
else
{
// check if quantity changed
int _quantity = Int32.Parse((_row.Cells[3].Text));
if (_actualQuantity != _quantity)
{
_row.Cells[3].Text = _actualQuantity.ToString();
}
++i;
}
}
// check row count
if (tableCart.Rows.Count <= 1)
{
// empty table
tableCart.Rows.Clear();
labelCart.Text = "Cart is empty";
labelCart.ForeColor = System.Drawing.Color.OrangeRed;
tableCartContainer.Visible = false;
}
}
// session methods
// get shopping cart
public object GetCart()
{
// get cart from session state
ShoppingCart_S1 _cart = (ShoppingCart_S1)Session["Cart"];
// if does not exist, create
if (_cart == null)
{
_cart = new ShoppingCart_S1();
Session.Add("Cart", _cart);
}
return(_cart);
}
// remove button click
private void CommandRemove(object _sender, CommandEventArgs _e)
{
Trace.Warn("cart", string.Format("CommandRemove(\"{0}\":{1})", _e.CommandName, _e.CommandArgument));
if (_e.CommandName.Equals("ItemID", StringComparison.OrdinalIgnoreCase))
{
int _id = Int32.Parse((string)_e.CommandArgument);
ShoppingCart_S1 _cart = (ShoppingCart_S1)((ShopMaster)Master).GetCart();
if (_cart.Remove(_id, 1))
{
Trace.Warn("cart", string.Format("removed id:{0}", _id));
}
else
{
Trace.Warn("cart", string.Format("failed to remove id:{0}", _id));
}
}
}
// builds cart table
private void BuildCartTable()
{
// get cart from master page
ShoppingCart_S1 _cart = (ShoppingCart_S1)((ShopMaster)Master).GetCart();
// get items
IReadOnlyCollection <ShoppingCart_S1.ShoppingCartItem_S1> _items = _cart.Items;
// check if empty
if (_items.Count > 0)
{
PopulateTable(_items);
}
else
{
// build message
labelCart.Text = "Cart is empty";
labelCart.ForeColor = System.Drawing.Color.OrangeRed;
tableCartContainer.Visible = false;
}
}