WP7 independent storage isolatedstoragefile usage and demo

The code is simple and suitable for beginners

First, add several widgets on the foreground page.

1 <! -- Contentpanel-place other content here --> 2 <grid X: Name = "contentpanel" grid. row = "1" margin = "380,"> 3 <textbox name = "isotextbox" 4 Height = "70" 5 width = "" 6 margin =, 33,467 "7/> 8 <textblock name =" quotatextblock "margin =" 12,164, 0, 0 "9 horizontalalignment =" Left "10 verticalalignment =" TOP "Height =" 50 "width =" 438 "/> 11 <button name =" iso_button "12 Height =" 70" 13 width = "180" 14 content = "write" 15 click = "iso_button_click" 16/> 17 <button name = "iso_button1" 18 Height = "70" 19 width = "180 "20 content =" read "21 click =" iso_button_click1 "margin =" 138,327,138,210 "/> 22 <textblock Height =" 50 "horizontalalignment =" Left "margin =" 9,231, 438 "name =" freetextblock "verticalignment =" TOP "width =" "/> 23 </GRID>

 

 

Background code Initialization

1 Loaded += new RoutedEventHandler(MainPage_Loaded);

1 void MainPage_Loaded(object sender, RoutedEventArgs e)2         {3             IsolatedStorageFile appStorage = IsolatedStorageFile.GetUserStoreForApplication();4 5             quotaTextBlock.Text = String.Format("quota:{0}", appStorage.Quota.ToString());6 7             freeTextBlock.Text = String.Format("free:{0}", appStorage.AvailableFreeSpace.ToString());8         }

 

Write button Event code

 

 1         private void Iso_Button_Click(object sender, RoutedEventArgs e) 2         { 3             IsolatedStorageFile appStorage = IsolatedStorageFile.GetUserStoreForApplication(); 4             string fileName = "test.txt"; 5  6  7             using (IsolatedStorageFileStream appStream = appStorage.OpenFile(fileName, System.IO.FileMode.OpenOrCreate)) 8             { 9                 using (StreamWriter writer = new StreamWriter(appStream))10                 {11                     writer.Write(isoTextBox.Text);12                 }13             }14         }

 

Read button Event code

 1         private void Iso_Button_Click1(object sender, RoutedEventArgs e) 2         { 3             using (IsolatedStorageFile appStorage = IsolatedStorageFile.GetUserStoreForApplication()) 4             { 5                 using (StreamReader reader = new StreamReader(appStorage.OpenFile("test.txt", FileMode.Open))) 6                 { 7                     isoTextBox.Text = reader.ReadLine(); 8                 } 9             }10 11         }

 

This is the end.

Isolatedstoragefile is used for independent storage to store the content in the test.txt file.

Then, you can use streamreader to read and retrieve data.

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Source code download http://vdisk.weibo.com/s/6VCiW