快速理解WP7的Isolated Storage

这篇文章很好的介绍了Isolated Storage。取其精华作为以后参考。

Isolated Storage的结构

示例代码如下：

  
    

   
     
   
     protected
   
      
   
     override
   
      
   
     void
   
      OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
 { 
 
   
     string
   
      text;
 
   
     if
   
      (IsolatedStorageSettings.ApplicationSettings.TryGetValue(
   
     "
   
     text
   
     "
   
     , 
   
     out
   
      text))
 { 
 
   
     this
   
     .textBox1.Text 
   
     =
   
      text;
 }
 
 var fileStorage 
   
     =
   
      IsolatedStorageFile.GetUserStoreForApplication();
 
   
     if
   
     (fileStorage.FileExists(
   
     "
   
     text.txt
   
     "
   
     ))
 {
 
   
     using
   
     (var fin 
   
     =
   
      
   
     new
   
      StreamReader(
   
     new
   
      IsolatedStorageFileStream(
   
     "
   
     text.txt
   
     "
   
     , FileMode.Open, fileStorage)))
 {
 
   
     this
   
     .textBox2.Text 
   
     =
   
      fin.ReadToEnd();
 } 
 }
 }

 
   
     private
   
      
   
     void
   
      button1_Click(
   
     object
   
      sender, RoutedEventArgs e)
 {
 IsolatedStorageSettings.ApplicationSettings[
   
     "
   
     text
   
     "
   
     ] 
   
     =
   
      textBox1.Text;
 }

 
   
     private
   
      
   
     void
   
      button2_Click(
   
     object
   
      sender, RoutedEventArgs e)
 {
 var fileStorage 
   
     =
   
      IsolatedStorageFile.GetUserStoreForApplication();
 
   
     using
   
      (var writer 
   
     =
   
      
   
     new
   
      StreamWriter(
   
     new
   
      IsolatedStorageFileStream(
   
     "
   
     text.txt
   
     "
   
     , FileMode.OpenOrCreate, fileStorage)))
 {
 writer.Write(textBox2.Text);
 }
 }