现在Windwos Phone 7的数据存储得写入到独立存储空间中，有两种存储方式：1.独立文件存储；2.独立设置存储。

（1）独立文件存储

独立文件存储的使用方法与文件类似

写入：

//Obtain the virtual store for application
IsolatedStorageFile myStore = IsolatedStorageFile.GetUserStoreForApplication();
//Create a new folder and call it "ImageFolder"
myStore.CreateDirectory("ImageFolder");
//Create a new file and assign a StreamWriter to the store and this new file (myFile.txt)
//Also take the text contents from the txtWrite control and write it to myFile.txt
StreamWriter writeFile = new StreamWriter(new IsolatedStorageFileStream("ImageFolder\\myFile.txt", FileMode.OpenOrCreate, myStore));
writeFile.WriteLine(txtWrite.Text);
writeFile.Close();

读取：

     //Obtain a virtual store for applicationIsolatedStorageFile myStore = IsolatedStorageFile.GetUserStoreForApplication();//This code will open and read the contents of myFile.txt//Add exception in case the user attempts to click “Read button first.StreamReader readFile = null;try{readFile = new StreamReader(new IsolatedStorageFileStream("ImageFolder\\myFile.txt", FileMode.Open, myStore));string fileText = readFile.ReadLine();//The control txtRead will display the text entered in the filetxtRead.Text = fileText;readFile.Close();}catch{txtRead.Text = "Need to create directory and the file first.";}

（2）独立设置存储

//获取独立设置存储对象
IsolatedStorageSettings settings = IsolatedStorageSettings.ApplicationSettings;//写数据
setting["name"]="Bill";
setting["age"]=""20;
setting.save();
//读数据
string Name=setting["name"];

更具体的例子可以看微软SettingsSample的例子，里面有很详细的说明怎么进行独立设置存储。