public IEnumerable<Book> GetAllProducts()
    {

    XDocument doc = XDocument.Load("C:\Users\Name\Desktop\products.xml");

    foreach (XElement element in doc.Descendants("Catalog")

        .Descendants("Product"))

    {

        Product product = new Product();

        product.Id = element.Element("Id").Value;
        product.Name = element.Element("Name").Value;
        product.Category = element.Element("Category").Value;
        product.Added_Date = element.Element("Added_Date").Value;//this will not work because its not a string
        product.Price = element.Element("Price").Value;//this will not work because its not a string

        products.Add(product);

        }

        return products;
    }

<?xml version="1.0"?>
<catalog>
   <product id="P1">
      <name>Royal Gala</name>
      <category>Apple</category>
      <country>New Zeeland</country>
      <price>33.00</price>
      <added_date>2011-01-11</added_date>
      <description>This is a lovely red apple.</description>
   </product>
   <product id="P2">
      <name>Granny Smith</name>
      <category>Apple</category>
      <country>Australia</country>
      <price>33.00</price>
      <added_date>2013-12-25</added_date>
      <description>This is a lovely green apple.</description>
   </product>
</catalog>