private void btnSave_Click(object sender, System.EventArgs e)
{
if (IsValidData())
{
product = new Product(txtCode.Text,
txtDescription.Text, Convert.ToDecimal(txtPrice.Text));
this.Close();
}
}
static void Main()
{
// Comparison test
Product p1 = new Product("JAVA", "Murach's Beginning Java 2", 49.50m);
Product p2 = new Product("JAVA", "Murach's Beginning Java 2", 49.50m);
if (p1 == p2) // This evaluates to true. Without the overloaded
Console.WriteLine("p1 equals p2"); // == operator, it would evaluate to false.
Application.EnableVisualStyles();
Application.Run(new frmProductMain());
}
private void btnSave_Click(object sender, System.EventArgs e)
{
if (IsValidData())
{
if (rbBook.Checked)
product = new Book(txtCode.Text, txtDescription.Text,
txtAuthorOrVersion.Text, Convert.ToDecimal(txtPrice.Text));
else
product = new Software(txtCode.Text, txtDescription.Text,
txtAuthorOrVersion.Text, Convert.ToDecimal(txtPrice.Text));
this.Close();
}
}
public static List<Product> GetProducts()
{
// create the list
List<Product> products = new List<Product>();
// create the XmlReaderSettings object
XmlReaderSettings settings = new XmlReaderSettings();
settings.IgnoreWhitespace = true;
settings.IgnoreComments = true;
// create the XmlReader object
XmlReader xmlIn = XmlReader.Create(Path, settings);
// read past all nodes to the first Product node
if (xmlIn.ReadToDescendant("Product"))
{
// create one Product object for each Product node
do
{
Product product = new Product();
xmlIn.ReadStartElement("Product");
product.Code =
xmlIn.ReadElementContentAsString();
product.Description =
xmlIn.ReadElementContentAsString();
product.Price =
xmlIn.ReadElementContentAsDecimal();
products.Add(product);
}
while (xmlIn.ReadToNextSibling("Product"));
}
// close the XmlReader object
xmlIn.Close();
return products;
}
public void Remove(Product product)
{
products.Remove(product);
Changed(this);
}
public void Add(string code, string description, decimal price)
{
Product p = new Product(code, description, price);
products.Add(p);
Changed(this);
}
public void Add(Product product)
{
products.Add(product);
Changed(this);
}
private static void ReadBase(XmlReader xmlIn, Product p)
{
p.Code =
xmlIn.ReadElementContentAsString();
p.Description =
xmlIn.ReadElementContentAsString();
p.Price =
xmlIn.ReadElementContentAsDecimal();
}
private static void WriteBase(Product product,
XmlWriter xmlOut)
{
xmlOut.WriteElementString("Code",
product.Code);
xmlOut.WriteElementString("Description",
product.Description);
xmlOut.WriteElementString("Price",
Convert.ToString(product.Price));
}