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.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.IO.IsolatedStorage;
using System.IO;
namespace SilverlightApplication3
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();
            this.Loaded +=new RoutedEventHandler(Page_Loaded);
        }
        void Page_Loaded(object sender, RoutedEventArgs e)
        {
            try
            {
                using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication())
                {
                    using (IsolatedStorageFileStream ifs = new IsolatedStorageFileStream("output.txt", FileMode.Create, isf))
                    {
                        using (StreamWriter sw = new StreamWriter(ifs))
                        {
                            sw.WriteLine("Hello World!");
                        }
                    }
                    using (IsolatedStorageFileStream ifs = new IsolatedStorageFileStream("output.txt", FileMode.Open, isf))
                    {
                        
                        using (StreamReader sr = new StreamReader(ifs))
                        {
                            string firstLine = sr.ReadLine();
                            DisplayOutput(firstLine);
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                DisplayError(ex);
            }
        }
        private void DisplayError(Exception ex)
        {
            TextBlock tbExceptionType = new TextBlock();
            TextBlock tbExceptionMessage = new TextBlock();
            tbExceptionType.Text = "Type: " + ex.GetType().ToString();
            tbExceptionMessage.Text = "Message: " + ex.Message;
            Grid.SetRow(tbExceptionType, 0);
            Grid.SetRow(tbExceptionMessage, 1);
            LayoutRoot.Children.Add(tbExceptionType);
            LayoutRoot.Children.Add(tbExceptionMessage);
        }
        private void DisplayOutput(string output)
        {
            TextBlock tbOutput = new TextBlock();
            tbOutput.Text = output;
            Grid.SetRow(tbOutput, 0);
            LayoutRoot.Children.Add(tbOutput);
        }
    }
}