Template Messages Using XSL Transformations and XML Serialization

using System;
using System.IO;
using System.Windows.Forms;

namespace TemplatesExample
{
    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
        }

        private void ButtonBrowse_Click(object sender, EventArgs e)
        {
            DialogResult dialogResult = openFileDialogXSLTFile.ShowDialog();
            if (dialogResult == DialogResult.OK)
            {
                textBoxXsltFile.Text = openFileDialogXSLTFile.FileName;
            }
        }

        private void ButtonTransform_Click(object sender, EventArgs e)
        {
            string outputFileName = AskUserForOutputFile();
            if (outputFileName == null)
                return;

            Transformer transformer = CreateTransformer();
            ProductsOrderMailData data = CreateMailData();
            Stream outputFile = new FileStream(outputFileName, FileMode.Create);

            transformer.Transform(data, outputFile);
            outputFile.Close();
            string uriFilename = string.Concat(Uri.UriSchemeFile, Uri.SchemeDelimiter, outputFileName);
            webBrowserResult.Url = new Uri(uriFilename);
        }

        private string AskUserForOutputFile()
        {
            string outputFilename = null;
            DialogResult dialogResult = saveFileDialogOutputFile.ShowDialog();
            if (dialogResult == DialogResult.OK)
            {
                outputFilename = saveFileDialogOutputFile.FileName;
            }

            return outputFilename;
        }

        private Transformer CreateTransformer()
        {
            Stream xsltFile = new FileStream(textBoxXsltFile.Text, FileMode.Open);
            Transformer transformer = new Transformer();
            transformer.Initialize(xsltFile, true);
            transformer.ObjectSerialized += WriteSerializedObjectToFileStream;
            return transformer;
        }

        private static void WriteSerializedObjectToFileStream(object sender, ObjectSerializedEventArgs e)
        {
            StreamReader reader = new StreamReader(e.SerializedObject);
            Stream fileStream = new FileStream("object.xml", FileMode.Create);
            StreamWriter writer = new StreamWriter(fileStream);

            string allData = reader.ReadToEnd();
            writer.Write(allData);
            writer.Close();
        }

        private static ProductsOrderMailData CreateMailData()
        {
            ProductsOrderMailData data = new ProductsOrderMailData();

            Product soap = CreateProduct(1, "melon soap", (decimal)2.3);
            Product shampoo = CreateProduct(2, "shampoo", (decimal)5.5);
            Product towel = CreateProduct(5, "cotton towel", 15);

            data.CustomerName = "Peter";
            data.OrderId = 12321;
            data.OrderDate = DateTime.UtcNow;
            data.Products.Add(soap);
            data.Products.Add(shampoo);
            data.Products.Add(towel);

            return data;
        }

        private static Product CreateProduct(int id, string name, decimal price)
        {
            Product product = new Product();

            product.Id = id;
            product.Name = name;
            product.Price = price;

            return product;
        }
    }
}