// deletes old shopping carts
protected void deleteButton_Click(object sender, EventArgs e)
{
byte days = byte.Parse(daysList.SelectedItem.Value);
ShoppingCartBLO.DeleteOldCarts(days);
countLabel.Text = "The old shopping carts were removed from the database";
}
// fill shopping cart controls with data
private void PopulateControls()
{
// set the title of the page
this.Title = ShopConfiguration.SiteName + " : Shopping Cart";
// get the items in the shopping cart
DataTable dt = ShoppingCartBLO.GetItems();
// if the shopping cart is empty...
if (dt.Rows.Count == 0)
{
titleLabel.Text = "Your shopping cart is empty!";
grid.Visible = false;
updateButton.Enabled = false;
checkoutButton.Enabled = false;
totalAmountLabel.Text = String.Format("{0:c}", 0);
}
else
// if the shopping cart is not empty...
{
// populate the list with the shopping cart contents
grid.DataSource = dt;
grid.DataBind();
// setup controls
titleLabel.Text = "These are the products in your shopping cart:";
grid.Visible = true;
updateButton.Enabled = true;
checkoutButton.Enabled = true;
// display the total amount
decimal amount = ShoppingCartBLO.GetTotalAmount();
totalAmountLabel.Text = String.Format("{0:c}", amount);
}
}
// fill the controls with data
private void PopulateControls()
{
// get the items in the shopping cart
DataTable dt = ShoppingCartBLO.GetItems();
// if the shopping cart is empty...
if (dt.Rows.Count == 0)
{
cartSummaryLabel.Text = "Your shopping cart is empty.";
totalAmountLabel.Text = String.Format("{0:c}", 0);
viewCartLink.Visible = false;
list.Visible = false;
}
else
// if the shopping cart is not empty...
{
// populate the list with the shopping cart contents
list.Visible = true;
list.DataSource = dt;
list.DataBind();
// setup controls
cartSummaryLabel.Text = "Cart summary ";
viewCartLink.Visible = true;
// display the total amount
decimal amount = ShoppingCartBLO.GetTotalAmount();
totalAmountLabel.Text = String.Format("{0:c}", amount);
}
}
// create a new order and redirect to a payment page
protected void checkoutButton_Click(object sender, EventArgs e)
{
// Store the total amount because the cart
// is emptied when creating the order
decimal amount = ShoppingCartBLO.GetTotalAmount();
// Create the order and store the order ID
string username = Session["username"] == null ? null : Session["username"].ToString();
string customerEmail = Session["useremail"] == null ? null : Session["useremail"].ToString();
string custoemrAddress = Session["useraddress"] == null ? null : Session["useraddress"].ToString();
string orderId = ShoppingCartBLO.CreateOrder(username, customerEmail, custoemrAddress);
// Obtain the site name from the configuration settings
string siteName = ShopConfiguration.SiteName;
// Create the PayPal redirect location
string redirect = "";
redirect += "https://www.paypal.com/xclick/[email protected]";
redirect += "&item_name=" + siteName + " Order " + orderId;
redirect += "&item_number=" + orderId;
redirect += "&amount=" + String.Format("{0:0.00} ", amount);
redirect += "¤cy=USD";
redirect += "&return=http://www." + siteName + ".com";
redirect += "&cancel_return=http://www." + siteName + ".com";
// Redirect to the payment page
Response.Redirect(redirect);
}
// Add the product to cart
protected void addToCartButton_Click(object sender, EventArgs e)
{
// Retrieve ProductID from the query string
string productId = Request.QueryString["ProductID"];
// Add the product to the shopping cart
ShoppingCartBLO.AddItem(productId);
}
// fires when an Add to Cart button is clicked
protected void list_ItemCommand(object source, DataListCommandEventArgs e)
{
// The CommandArgument of the clicked Button contains the ProductID
string productId = e.CommandArgument.ToString();
// Add the product to the shopping cart
ShoppingCartBLO.AddItem(productId);
}
// remove a product from the cart
protected void grid_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
// Index of the row being deleted
int rowIndex = e.RowIndex;
// The ID of the product being deleted
string productId = grid.DataKeys[rowIndex].Value.ToString();
// Remove the product from the shopping cart
bool success = ShoppingCartBLO.RemoveItem(productId);
// Display status
statusLabel.Text = success ? "<br />Product successfully removed!<br />" :
"<br />There was an error removing the product!<br />";
// Repopulate the control
PopulateControls();
}
protected void Page_PreRender(object sender, EventArgs e)
{
// Get the currently loaded page
string currentLocation = Request.AppRelativeCurrentExecutionFilePath;
// If we're in Product.aspx...
if (currentLocation == "~/Product.aspx")
{
// get the product ID
string productId = Request.QueryString["ProductID"];
// get product recommendations
DataTable table;
// display recommendations
table = CatalogBLO.GetRecommendations(productId);
list.DataSource = table;
list.DataBind();
// display header
if (table.Rows.Count > 0)
{
recommendationsHeader.Text =
"Customers who bought this product also bought:";
}
else
{
recommendationsHeader.Text = "";
}
}
// If we're in ShoppingCart.aspx...
else if (currentLocation == "~/ShoppingCart.aspx")
{
// get product recommendations
DataTable table;
// display recommendations
table = ShoppingCartBLO.GetRecommendations();
list.DataSource = table;
list.DataBind();
// display header
if (table.Rows.Count > 0)
{
recommendationsHeader.Text =
"Customers who bought these products also bought:";
}
else
{
recommendationsHeader.Text = "";
}
}
}
// counts old shopping carts
protected void countButton_Click(object sender, EventArgs e)
{
byte days = byte.Parse(daysList.SelectedItem.Value);
int oldItems = ShoppingCartBLO.CountOldCarts(days);
if (oldItems == -1)
{
countLabel.Text = "Could not count the old shopping carts!";
}
else if (oldItems == 0)
{
countLabel.Text = "There are no old shopping carts.";
}
else
{
countLabel.Text = "There are " + oldItems.ToString() +
" old shopping carts.";
}
}
// update shopping cart product quantities
protected void updateButton_Click(object sender, EventArgs e)
{
// Number of rows in the GridView
int rowsCount = grid.Rows.Count;
// Will store a row of the GridView
GridViewRow gridRow;
// Will reference a quantity TextBox in the GridView
TextBox quantityTextBox;
// Variables to store product ID and quantity
string productId;
int quantity;
// Was the update successful?
bool success = true;
// Go through the rows of the GridView
for (int i = 0; i < rowsCount; i++)
{
// Get a row
gridRow = grid.Rows[i];
// The ID of the product being deleted
productId = grid.DataKeys[i].Value.ToString();
// Get the quantity TextBox in the Row
quantityTextBox = (TextBox)gridRow.FindControl("editQuantity");
// Get the quantity, guarding against bogus values
if (Int32.TryParse(quantityTextBox.Text, out quantity))
{
// Update product quantity
success = success && ShoppingCartBLO.UpdateItem(productId, quantity);
}
else
{
// if TryParse didn't succeed
success = false;
}
// Display status message
statusLabel.Text = success ?
"<br />Your shopping cart was successfully updated!<br />" :
"<br />Some quantity updates failed! Please verify your cart!<br />";
}
// Repopulate the control
PopulateControls();
}
