private void updateCartItem(object sender, int delta)
{
// find the value of the qty to add textbox
// First get the grandparent from control hierarchy: ListViewDataItem --> TableCell --> Sender button
// then get the values from its controls
Control item = ControlHelper.GetParent(sender, 2);
string productName = ControlHelper.GetControlValue(item, "ProductDescriptionLabel");
int productID = ControlHelper.GetControlValue(item, "ProductIDLabel", -1);
int qtyOnHand = ControlHelper.GetControlValue(item, "QtyOnHandLabel", -1);
int qtyInCart = ControlHelper.GetControlValue(item, "QtyInCart", -1);
int newQty = qtyInCart + delta;
// generate our messages
string unit = (newQty > 1) ? "units" : "unit";
string successMessage =
string.Format("Cart updated to <strong>{0}</strong> {1} of <strong>{2}</strong>.",
newQty, unit, productName);
string failureMessage = "Cart cannot be updated for " + productName + " id=" + productID + " qty=" + qtyInCart + " new=" + newQty + " stock=" + qtyOnHand;
MessageUserControl.TryRun(() =>
{
// check if user is logged in
if (!IsSalesUser || CurrentEmployee == null)
{
throw new BusinessRuleException(failureMessage, "User must be employee, logged in and have Sales role to add products to cart.");
}
// check product id
else if (productID <= 0)
{
throw new BusinessRuleException(failureMessage, "Product ID must be positive integer.");
}
// check out of stock
else if (qtyOnHand <= 0 && newQty > 0)
{
throw new BusinessRuleException(failureMessage, "Product is out of stock, must be deleted from cart.");
}
// check qty to add
else if (newQty < 1 || newQty > qtyOnHand)
{
throw new BusinessRuleException(failureMessage, string.Format("Quantity must be between 1 and quantity on stock {0}.", qtyOnHand));
}
// yay, we can try and add the product to the cart
else
{
// All validation passed, we can safely call our BLL.
// Now, our BLL cannot access the AppSecurity assembly, so we needed to get the Employee ID and
// pass that to our BLL instead of the username:
SalesCartController cartmgr = new SalesCartController();
cartmgr.UpdateCart(CurrentEmployeeID, productID, newQty);
// refresh cart summary
// CartSummaryView.DataBind();
RefreshCartSummary();
}
}, "Success", successMessage);
}
// add selected item to cart
protected void AddToCartButton_Click(object sender, EventArgs e)
{
// find the value of the qty to add textbox
// First get the grandparent from control hierarchy: ListViewDataItem --> TableCell --> Sender button
// then get the values from its controls
Control item = ControlHelper.GetParent(sender, 2);
string productName = ControlHelper.GetControlValue(item, "ProductDescriptionLabel");
int productID = ControlHelper.GetControlValue(item, "ProductIDLabel", -1);
int qtyOnHand = ControlHelper.GetControlValue(item, "QtyOnHandLabel", -1);
int qtyToAdd = ControlHelper.GetControlValue(item, "AddToCartQty", -1);
// generate our messages
string unit = (qtyToAdd > 1) ? "units" : "unit";
string successMessage =
string.Format("<strong>{0}</strong> {1} of <strong>{2}</strong> added to cart.",
qtyToAdd, unit, productName);
string failureMessage = "Product not added to cart.";
MessageUserControl.TryRun(() =>
{
// check if user is logged in
if (!IsSalesUser || CurrentEmployee == null)
{
throw new BusinessRuleException(failureMessage, "User must be employee, logged in and have Sales role to add products to cart.");
}
// check product id
else if (productID <= 0)
{
throw new BusinessRuleException(failureMessage, "Product ID must be positive integer.");
}
// check out of stock
else if (qtyOnHand <= 0)
{
throw new BusinessRuleException(failureMessage, "Product is out of stock, cannot be added to cart.");
}
// check qty to add
else if (qtyToAdd <= 0 || qtyToAdd > qtyOnHand)
{
throw new BusinessRuleException(failureMessage, "Quantity to add must be between 1 and quantity on stock.");
}
// yay, we can try and add the product to the cart
else
{
// All validation passed, we can safely call our BLL.
// Now, our BLL cannot access the AppSecurity assembly, so we needed to get the Employee ID and
// pass that to our BLL instead of the username:
SalesCartController cartmgr = new SalesCartController();
cartmgr.AddToCart(CurrentEmployeeID, productID, qtyToAdd);
// refresh cart summary
// CartSummaryView.DataBind();
RefreshCartSummary();
}
}, "Success", successMessage);
}
protected void btnPlaceOrder_Click(object sender, EventArgs e)
{
string couponCode = CartSummary_Coupon?.Text;
string paymentMethod = PaymentTypeDDL?.SelectedValue;
MessageUserControl.TryRun(() => {
SalesCartController cartmgr = new SalesCartController();
SalesReceipt receipt = cartmgr.PlaceOrder(CurrentEmployeeID, couponCode, paymentMethod);
// clear the coupon code and payment method for the next customer
CartSummary_Coupon.Text = "";
PaymentTypeDDL.SelectedIndex = 0;
// switch the display to sales receipt mode and display receipt
ShowReceipt(receipt);
}, "Success", "Order registered. Use the top menu bar to start a new sale.");
}
protected void btnDeleteCartItem_Click(object sender, EventArgs e)
{
// delete selected product from cart
Control item = ControlHelper.GetParent(sender, 2);
string productName = ControlHelper.GetControlValue(item, "ProductDescriptionLabel");
int productID = ControlHelper.GetControlValue(item, "ProductIDLabel", -1);
// generate our messages
string successMessage =
string.Format("<strong>{0}</strong> removed from cart.", productName);
string failureMessage =
string.Format("Cannot remove propduct <strong>{0}</strong> (ID={1}) from cart.", productName, productID);
MessageUserControl.TryRun(() =>
{
// check if user is logged in
if (!IsSalesUser || CurrentEmployee == null)
{
throw new BusinessRuleException(failureMessage, "User must be employee, logged in and have Sales role to add products to cart.");
}
// check product id
else if (productID <= 0)
{
throw new BusinessRuleException(failureMessage, "Product ID must be positive integer.");
}
// yay, we can try and remove the product from the cart
else
{
// All validation passed, we can safely call our BLL.
// Now, our BLL cannot access the AppSecurity assembly, so we needed to get the Employee ID and
// pass that to our BLL instead of the username:
SalesCartController cartmgr = new SalesCartController();
cartmgr.DeleteCartItem(CurrentEmployeeID, productID);
// refresh cart summary
// CartSummaryView.DataBind();
RefreshCartSummary();
}
}, "Success", successMessage);
}
protected void CancelButton_Click(object sender, EventArgs e)
{
MessageUserControl.TryRun(() =>
{
if (!IsSalesUser || CurrentEmployee == null)
{
throw new BusinessRuleException("Cannot delete cart", "User must be employee, logged in and have Sales role to add products to cart.");
}
else
{
// delete cart and cart items
SalesCartController cartmgr = new SalesCartController();
cartmgr.CancelCart(CurrentEmployeeID);
// clear previous coupon code
CartSummary_Coupon.Text = "";
// refresh cart
RefreshCartSummary();
}
SalesTabView.SetActiveView(TabShopping);
}, "Cart deleted", "All items deleted from the current shopping cart.");
}
protected void RefreshCartSummary()
{
// check if the user is logged in, has sales role and is an employee and set visibility accordingly
if (CurrentEmployee == null)
{
// not logged in or not employee or has no sales role
CartSummaryPanelNotLoggedIn.Visible = true;
CartSummaryPanel.Visible = false;
// disable checkout button in navigation
setActiveTab(false);
}
else
{
// logged in and employee with sales role
CartSummaryPanelNotLoggedIn.Visible = false;
CartSummaryPanel.Visible = true;
// set salesperson name
CartSummary_EmployeeName.Text = CurrentEmployeeName;
CartSummary_EmployeeID.Text = CurrentEmployeeID.ToString();
// get cart summary for current employee given the coupon code
var cartmgr = new SalesCartController();
CartSummaryInfo summary = cartmgr.ShoppingCart_GetSummary(CurrentEmployeeID, CartSummary_Coupon.Text);
// if the cart is empty, display a message, otherwise display the cart summary
if (summary == null)
{
// cart is empty
CartSummaryPanelEmpty.Visible = true;
CartSummaryPanelNotEmpty.Visible = false;
// disable checkout button in navigation
setActiveTab(false);
}
else
{
// cart is not empty, populate fields
CartSummaryPanelEmpty.Visible = false;
CartSummaryPanelNotEmpty.Visible = true;
// enable checkout button in navigation
setActiveTab(true);
// populate cart summary fields
CartSummary_ProductCount.Text = string.Format("{0}", summary.ProductCount);
CartSummary_ItemCount.Text = string.Format("{0}", summary.ItemCount);
CartSummary_SubtotalAmount.Text = string.Format("{0:C2}", summary.Subtotal);
CartSummary_DiscountAmount.Text = string.Format("{0:C2}", summary.Discount);
CartSummary_TaxAmount.Text = string.Format("{0:C2}", summary.GST);
CartSummary_TotalAmount.Text = string.Format("{0:C2}", summary.Total);
// check coupon and display discount percent if coupon was valid or error otherwise
if (string.IsNullOrWhiteSpace(CartSummary_Coupon.Text))
{
// coupon field empty, hide all messages
CartSummary_DicountIcon_OK.Visible = false;
CartSummary_DiscontIcon_Error.Visible = false;
CartSummary_DiscountError.Text = "";
CartSummary_DiscountPercent.Text = "";
}
else if (summary.DiscountCoupon == null)
{
// coupon not found
CartSummary_DicountIcon_OK.Visible = false;
CartSummary_DiscontIcon_Error.Visible = true;
CartSummary_DiscountError.Text = "Invalid";
CartSummary_DiscountPercent.Text = "";
}
else if (!summary.DiscountCoupon.IsValid)
{
// coupon not valid because of date range
CartSummary_DicountIcon_OK.Visible = false;
CartSummary_DiscontIcon_Error.Visible = true;
CartSummary_DiscountError.Text = "Expired";
CartSummary_DiscountPercent.Text = "";
}
else
{
// coupon valid, dispay percentage
CartSummary_DicountIcon_OK.Visible = true;
CartSummary_DiscontIcon_Error.Visible = false;
CartSummary_DiscountError.Text = "";
CartSummary_DiscountPercent.Text = string.Format("{0} %", summary.DiscountCoupon.DiscountPercent);
}
}
}
// refresh cart items
CartItemsView.DataBind();
}
