public static ObservableCollection<cls_Invoice> GetData()
{
ObservableCollection<cls_Invoice> list = new ObservableCollection<cls_Invoice>();
cls_Customer customer = new cls_Customer("Bob", 27);
cls_Product product = new cls_Product(14, "Bike", 85.63);
DateTime date = new DateTime(2015,12,1);
cls_Invoice invoice = new cls_Invoice(1,customer, product, date);
list.Add(invoice);
customer = new cls_Customer("Tom", 85);
product = new cls_Product(10, "Snowboard", 105.99);
date = new DateTime(2015, 11, 30);
invoice = new cls_Invoice(2, customer, product, date);
list.Add(invoice);
customer = new cls_Customer("Jared", 10);
product = new cls_Product(17, "Kyak", 242.13);
date = new DateTime(2015, 11, 22);
invoice = new cls_Invoice(3, customer, product, date);
list.Add(invoice);
return list;
}
/// <summary>
/// Constructs an invoice with just one item
/// </summary>
/// <param name="cust">Customer</param>
/// <param name="prod">Product Purchased</param>
public cls_Invoice(int id, cls_Customer cust, cls_Product prod, DateTime d)
{
try
{
i_invId = id;
customer = cust;
productList = new List<cls_Product>();
productList.Add(prod);
date = d;
}
catch (Exception ex)
{
//Just throw the exception
throw new Exception(MethodInfo.GetCurrentMethod().DeclaringType.Name + "." +
MethodInfo.GetCurrentMethod().Name + " -> " + ex.Message);
}
}
/// <summary>
/// Removes a product from the invoice
/// </summary>
/// <param name="prod">Product to be removed</param>
public void RemoveProduct(cls_Product prod)
{
try
{
//Check to see if that product is actually in the invoice
foreach (cls_Product item in productList)
{
if (item.Equals(prod))
{
productList.Remove(item);
PropertyChanged(this, new PropertyChangedEventArgs("TotalCost"));
return;
}
}
}
catch (Exception ex)
{
//Just throw the exception
throw new Exception(MethodInfo.GetCurrentMethod().DeclaringType.Name + "." +
MethodInfo.GetCurrentMethod().Name + " -> " + ex.Message);
}
}
/// <summary>
/// Add an individual product to the invoice
/// </summary>
/// <param name="prod">Product to be added</param>
public void AddProduct(cls_Product prod)
{
try
{
productList.Add(prod);
//to notify the databinding of a change
PropertyChanged(this, new PropertyChangedEventArgs("TotalCost"));
}
catch (Exception ex)
{
//Just throw the exception
throw new Exception(MethodInfo.GetCurrentMethod().DeclaringType.Name + "." +
MethodInfo.GetCurrentMethod().Name + " -> " + ex.Message);
}
}
