Data Silverlight

    xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' 
    xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
    xmlns:d='http://schemas.microsoft.com/expression/blend/2008' 
    xmlns:mc='http://schemas.openxmlformats.org/markup-compatibility/2006' 
    mc:Ignorable='d' 
    d:DesignWidth='640' 
    d:DesignHeight='480'>
    
        
    

//File: Page.xaml.cs
using System;
using System.Collections.Generic;
using System.IO.IsolatedStorage;
using System.Linq;
using System.Net;
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.Shapes;
using System.Windows.Browser;
namespace SilverlightApplication3
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();
        }
        private void myButton_Click(object sender, RoutedEventArgs e)
        {
            using (IsolatedStorageFile isoFile = IsolatedStorageFile.GetUserStoreForApplication())
            {
                CreateIsoStore(isoFile);
                isoFile.DeleteFile("testfile1.txt");
                isoFile.DeleteFile("file1.txt");
                HtmlWindow window = HtmlPage.Window;
                bool testfile1Exists = isoFile.FileExists("testfile1.txt");
                bool file1Exists = isoFile.FileExists("file1.txt");
                Console.WriteLine(testfile1Exists);
                Console.WriteLine(file1Exists);
            }
        }
        private void CreateIsoStore(IsolatedStorageFile isoFile)
        {
            isoFile.CreateDirectory("Directory1");
            IsolatedStorageFileStream textfile2 = isoFile.CreateFile("textfile2.xml");
            textfile2.Close();
            IsolatedStorageFileStream textfile1 = isoFile.CreateFile("textfile1.txt");
            textfile1.Close();
            IsolatedStorageFileStream testfile1 = isoFile.CreateFile("testfile1.txt");
            testfile1.Close();
            IsolatedStorageFileStream nestedFile = isoFile.CreateFile("file1.txt");
            nestedFile.Close();
        }
    }
}