C# .Net 7 XML Deserialize

<?xml version="1.0"?> <OrderedItem xmlns:inventory="http://www.cpandl.com" xmlns:money="http://www.cohowinery.com"> <inventory:ItemName>Widget</inventory:ItemName> <inventory:Description>Regular Widget</inventory:Description> <money:UnitPrice>2.3</money:UnitPrice> <inventory:Quantity>10</inventory:Quantity> <money:LineTotal>23</money:LineTotal> </OrderedItem>

using System; using System.IO; using System.Text; using System.Xml; using System.Xml.Serialization; // This is the class that will be deserialized. public class OrderedItem { public string ItemName; public string Description; public decimal UnitPrice; public int Quantity; public decimal LineTotal; // A custom method used to calculate price per item. public void Calculate() { LineTotal = UnitPrice * Quantity; } } public class Test { public static void Main(string[] args) { Test t = new Test(); // Read a purchase order. t.DeserializeObject("simple.xml"); } private void DeserializeObject(string filename) { Console.WriteLine("Reading with XmlReader"); // Create an instance of the XmlSerializer specifying type and namespace. XmlSerializer serializer = new XmlSerializer(typeof(OrderedItem)); // A FileStream is needed to read the XML document. FileStream fs = new FileStream(filename, FileMode.Open); XmlReader reader = XmlReader.Create(fs); // Declare an object variable of the type to be deserialized. OrderedItem i; // Use the Deserialize method to restore the object's state. i = (OrderedItem)serializer.Deserialize(reader); fs.Close(); // Write out the properties of the object. Console.Write( i.ItemName + "\t" + i.Description + "\t" + i.UnitPrice + "\t" + i.Quantity + "\t" + i.LineTotal); } }