WP7 - Load local HTML files and all related files (js, css) to WebBrowser

Agenda : we have several files html, css, js interconnected and we would start our web application in WebBrowser.
0. Create new project "SilverlightWebBrowser"
1. In the project navigator will create a new folder and name "HTML".
2. Copy all our files in that folder (if you want include image files don't forget change "Build Action" property of the images to "Content" from "Resource").

3. Add to MainPage.xaml code for show WebBrowser:

<Grid x:Name="ContentPanel" Grid.Row="1" Margin="0,0,0,0">
    <phone:WebBrowser IsScriptEnabled="True" Name="webBrowser1" Width="450" Height="548"/>
</Grid>

4. MainPage.xaml.cs

#define DEBUG

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.IO.IsolatedStorage;
using System.Linq;
using System.Net;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Resources;
using Microsoft.Phone.Controls;

namespace SilverlightWebBrowser
{
    public partial class MainPage : PhoneApplicationPage
    {
        // Constructor
        public MainPage()
        {
            InitializeComponent();

            SaveFilesInHTMLFolderToIsoStore();

            webBrowser1.Navigate(new Uri("HTML/Index.html", UriKind.Relative));

        }

        private static void SaveFilesInHTMLFolderToIsoStore()
        {
#if DEBUG
            // This deletes all existing files in IsolatedStorage - Useful in testing
            // In live should not do this, but only load files once - this speeds subsequent loading of the app
            using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication())
            {
                isoStore.Remove();
            }
#endif
            string[] files = AllFilesInHTMLFolder();

            using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication())
            {
                Debug.WriteLine("check for exist " + files[0]);
                if (!isoStore.FileExists(files[0]))
                {
                    foreach (string f in files)
                    {
                        Debug.WriteLine("copy to isolated storage " + f.ToString());
                        StreamResourceInfo sr = Application.GetResourceStream(new Uri(f, UriKind.Relative));

                        // T4 Template includes all files in source folder(s). This may include some which are not in the project
                        if (sr != null)
                        {
                            using (BinaryReader br = new BinaryReader(sr.Stream))
                            {
                                byte[] data = br.ReadBytes((int)sr.Stream.Length);
                                SaveFileToIsoStore(f, data);
                            }
                        }
                    }
                }
            }
        }

        private static void SaveFileToIsoStore(string fileName, byte[] data)
        {
            string strBaseDir = string.Empty;
            const string DelimStr = "/";
            char[] delimiter = DelimStr.ToCharArray();
            string[] dirsPath = fileName.Split(delimiter);

            // Get the IsoStore
            using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication())
            {
                // Recreate the directory structure
                for (int i = 0; i < dirsPath.Length - 1; i++)
                {
                    strBaseDir = Path.Combine(strBaseDir, dirsPath[i]);
                    isoStore.CreateDirectory(strBaseDir);
                }

                // Create the file if not exists
                // or override if exist
                using (BinaryWriter bw = new BinaryWriter(new IsolatedStorageFileStream(fileName,
                        FileMode.Create, FileAccess.Write, FileShare.Write, isoStore)))
                {
                    bw.Write(data);
                }
            }
        }



        //generated from MainPage.xaml.tt -> Run Custom Tool
        private static string[] AllFilesInHTMLFolder()
        {
            return new[] {
                           "HTML/index.css",
                           "HTML/Index.html",
                           "HTML/inner.js",
                        };
        }
    
    }
}

5. And then run emulator
6. Now We see our page with our css and js
7. But if we don't know in advance a list of files or it's large enough that would get lost, you can use preprocessed text template.

MainPage.xaml.tt

<#@ template debug="false" hostspecific="true" language="C#" #>
<#@ output extension=".gen.cs" #>
<#@ import namespace="System.IO"#>
// <auto-generated />
using Microsoft.Phone.Controls;

namespace SilverlightWebBrowser
{
    public partial class MainPage : PhoneApplicationPage
    {
        private static string[] AllFilesInHTMLFolder()
        {
            return new[] {
<#
            DirectoryInfo directoryInfo = new DirectoryInfo(Path.Combine(Path.GetDirectoryName(Host.TemplateFile), "HTML"));

            foreach(FileInfo file in directoryInfo.GetFiles("*.*", SearchOption.AllDirectories))
            {
    if (!file.FullName.Contains(@"\."))
    {#>
                           "<#= file.FullName.Substring(file.FullName.IndexOf("HTML")).Replace(@"\", "/") #>",
<#           }
   }
#>
                        };
        }
    }
}

8. Copy file MainPage.xaml.tt into project
    -> select file in navigation project
    -> right click -> Run Custom Tools
    -> open generated file MainPage.xaml.gen.cs
    -> we see our function AllFilesInHTMLFolder() with all exist files
    -> if you want to see all code in one place as copy/paste to MainPage.xaml.cs and delete MainPage.xaml.gen.cs. If no as go to 10.
10. It's all.