// calculates totals
private void calculateTotals()
{
// get cart summary
ShoppingCart_S2 _cart = (ShoppingCart_S2)((ShopMaster)Master).GetCart();
IReadOnlyCollection <ShoppingCart_S2.ShoppingCartItem_S2> _items = _cart.Items;
int _totalItems = 0, _totalQuantity = 0;
double _totalPrice = 0, _totalWeight = 0, _finalPrice = 0;
foreach (ShoppingCart_S2.ShoppingCartItem_S2 _cartItem in _items)
{
if (_cartItem.Quantity <= 0)
{
continue;
}
++_totalItems;
_totalQuantity += _cartItem.Quantity;
Item_S2 _item = (Item_S2)((ShopMaster)Master).GetItem(_cartItem.ItemID);
_totalPrice += _item.Price * _cartItem.Quantity;
_totalWeight += _item.Weight * _cartItem.Quantity;
}
_finalPrice = _totalPrice + _totalWeight * costPerOunce;
totalItems = _totalItems;
totalQuantity = _totalQuantity;
totalPrice = _totalPrice;
totalWeight = _totalWeight;
totalShipping = _totalWeight * costPerOunce;
finalTotal = _finalPrice;
}
// click add to cart
private void ClickAddToCart(object _sender, EventArgs _e)
{
// get cart
ShoppingCart_S2 _cart = (ShoppingCart_S2)((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;
}
}
// builds message body (HTML)
private string buildMessageBody(string name, string street, string city, string state, string zip, string email, string orderStr)
{
// get totals
calculateTotals();
string body = "";
// opening
body += string.Format("<p>Order Confirmation #{0}</p>", orderStr);
// order summary
body += "<h5>Summary:</h5>";
body += string.Format("<table>{0}{1}{2}{3}{4}{5}</table>",
string.Format("<tr><td>Items</td><td align=\"right\">{0}</td></tr>", totalItems),
string.Format("<tr><td>Quantity</td><td align=\"right\">{0}</td></tr>", totalQuantity),
string.Format("<tr><td>Price</td><td align=\"right\">{0:C2}</td></tr>", totalPrice),
string.Format("<tr><td>Weight</td><td align=\"right\">{0:f2}</td></tr>", totalWeight),
string.Format("<tr><td>Shipping Total</td align=\"right\"><td>{0:C2}</td></tr>", totalShipping),
string.Format("<tr><td>Final Total</td><td align=\"right\">{0:C2}</td></tr>", finalTotal)
);
// order information
body += "<h5>Shipping Information</h5>";
body += string.Format("<table>{0}{1}{2}</table>",
string.Format("<tr><td>{0}</td></tr>", name),
string.Format("<tr><td>{0}</td></tr>", street),
string.Format("<tr><td>{0} {1} {2}</td></tr>", city, state, zip)
);
// order items
body += "<h5>Items</h5>";
body += "<table>";
// build title row
body += "<tr><td>ID</td><td>Name</td><td>Unit Price</td><td>Unit Weight</td><td>Quantity</td></tr>";
// build rows for each item
ShoppingCart_S2 _cart = (ShoppingCart_S2)((ShopMaster)Master).GetCart();
IReadOnlyCollection <ShoppingCart_S2.ShoppingCartItem_S2> _items = _cart.Items;
foreach (ShoppingCart_S2.ShoppingCartItem_S2 _cartItem in _items)
{
Item_S2 _item = (Item_S2)((ShopMaster)Master).GetItem(_cartItem.ItemID);
body += string.Format("<tr>{0}{1}{2}{3}{4}</tr>",
string.Format("<td>{0}</td>", _item.ID),
string.Format("<td>\"{0}\"</td>", _item.Name),
string.Format("<td>{0:C2}</td>", _item.Price),
string.Format("<td>{0:f2}</td>", _item.Weight),
string.Format("<td>{0}</td>", _cartItem.Quantity)
);
}
body += "</table>";
return(body);
}
// session methods
// get shopping cart
public object GetCart()
{
// get cart from session state
ShoppingCart_S2 _cart = (ShoppingCart_S2)Session["Cart"];
// if does not exist, create
if (_cart == null)
{
_cart = new ShoppingCart_S2();
Session.Add("Cart", _cart);
}
return(_cart);
}
// update button click
private void CommandUpdate(object _sender, CommandEventArgs _e)
{
Trace.Warn("cart", string.Format("CommandUpdate(\"{0}\":{1})", _e.CommandName, _e.CommandArgument));
if (_e.CommandName.Equals("ItemID", StringComparison.OrdinalIgnoreCase))
{
int _id = Int32.Parse((string)_e.CommandArgument);
Trace.Write("Shop", string.Format("Updating id {0}", _id));
// find row w/ item
TableRowCollection _rows = tableCart.Rows;
TableRow _row = null;
int i = 1;
while (i < _rows.Count)
{
_row = _rows[i];
// get ID for row
HyperLink _link = (HyperLink)_row.Cells[0].Controls[0];
int _rowID = Int32.Parse(_link.Text);
if (_id == _rowID)
{
break;
}
++i;
}
if (i == _rows.Count)
{
Trace.Warn("Shop Update", string.Format("Failed to find row w/ ID: {0}", _id));
return;
}
// pull value from textbox
int _quantity = Int32.Parse((((TextBox)(_row.Cells[4].Controls[0])).Text));
Trace.Write("Cart", string.Format("Quantity read: {0}", _quantity));
ShoppingCart_S2 _cart = (ShoppingCart_S2)((ShopMaster)Master).GetCart();
if (_cart.Update(_id, _quantity))
{
Trace.Write("cart", string.Format("updated id:{0}", _id));
}
else
{
Trace.Warn("cart", string.Format("failed to update id:{0}", _id));
}
}
}
// builds cart table
private void BuildCartTable()
{
// get cart from master page
ShoppingCart_S2 _cart = (ShoppingCart_S2)((ShopMaster)Master).GetCart();
// get items
IReadOnlyCollection <ShoppingCart_S2.ShoppingCartItem_S2> _items = _cart.Items;
// check if empty
if (_items.Count > 0)
{
PopulateTable(_items);
}
else
{
DisplayEmptyCart();
}
}
// 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_S2 _cart = (ShoppingCart_S2)((ShopMaster)Master).GetCart();
if (_cart.Remove(_id))
{
Trace.Warn("cart", string.Format("removed id:{0}", _id));
}
else
{
Trace.Warn("cart", string.Format("failed to remove id:{0}", _id));
}
}
}
// page load
protected void Page_Load(object sender, EventArgs e)
{
if (IsPostBack)
{
return;
}
// validate previous page
try {
if (PreviousPage == null)
{
Response.Redirect("./Browse.aspx", true);
}
// IsPostBack?
}catch (InvalidOperationException _e) {
Response.Redirect("./Browse.aspx", true);
}
// check if cart empty
ShoppingCart_S2 _cart = (ShoppingCart_S2)((ShopMaster)Master).GetCart();
IReadOnlyCollection <ShoppingCart_S2.ShoppingCartItem_S2> _items = _cart.Items;
if (_items.Count <= 0)
{
Response.Redirect("./Browse.aspx", true);
}
int _total = 0;
foreach (ShoppingCart_S2.ShoppingCartItem_S2 _item in _items)
{
_total += _item.Quantity;
}
if (_total <= 0)
{
Response.Redirect("./Browse.aspx", true);
}
// build page
buildDisplay();
}
// updates table
private void RefreshCartTable()
{
// get cart
ShoppingCart_S2 _cart = (ShoppingCart_S2)((ShopMaster)Master).GetCart();
// cycle through each row, except the first one
// find items w/ quantity of zero, remove row
TableRowCollection _rows = tableCart.Rows;
TableRow _row = null;
int i = 1;
while (i < _rows.Count)
{
_row = _rows[i];
// get ID for row
HyperLink _link = (HyperLink)_row.Cells[0].Controls[0];
int _id = Int32.Parse(_link.Text);
Trace.Write("Cart", string.Format("Refreshing row id: {0}", _id));
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
{
// always refresh
int _quantity = Int32.Parse((((TextBox)(_row.Cells[4].Controls[0])).Text));
Trace.Write("Cart", string.Format("Quantity read: {0}", _quantity));
// get item info
Item_S2 _item = (Item_S2)((ShopMaster)Master).GetItem(_id);
// update quantity and ext price/weight
//_row.Cells[4].Text = _actualQuantity.ToString();
_row.Cells[5].Text = (_item.Price * _actualQuantity).ToString("C2");
_row.Cells[6].Text = (_item.Weight * _actualQuantity).ToString("f2");
++i;
}
}
// check row count
if (tableCart.Rows.Count <= 1)
{
DisplayEmptyCart();
return;
}
// calculate totals
double _totalPrice = 0, _totalWeight = 0;
foreach (ShoppingCart_S2.ShoppingCartItem_S2 _cartItem in _cart.Items)
{
// get item
Item_S2 _item = (Item_S2)((ShopMaster)Master).GetItem(_cartItem.ItemID);
_totalPrice += _item.Price * _cartItem.Quantity;
_totalWeight += _item.Weight * _cartItem.Quantity;
}
// add totals row
_row = new TableRow();
_row.CssClass = "TotalRow";
// populate empty cells
TableCell _cell = null;
for (i = 0; i < 5; ++i)
{
_cell = new TableCell();
_cell.CssClass = "EmptyCell";
_cell.Text = " ";
_row.Cells.Add(_cell);
}
// total ext price
_cell = new TableCell();
_cell.CssClass = "EmptyCell";
_cell.Text = _totalPrice.ToString("C2");
_row.Cells.Add(_cell);
// total ext weight
_cell = new TableCell();
_cell.CssClass = "EmptyCell";
_cell.Text = _totalWeight.ToString("f2");
_row.Cells.Add(_cell);
tableCart.Rows.Add(_row);
}
