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  • [Windows Phone 7] Storage

    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 application
        IsolatedStorageFile 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 file
            txtRead.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。

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  • 原文地址:https://www.cnblogs.com/ssqjd/p/1850660.html
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