在 IsolatedStorageSettings 中恢复计数

Question

当我按下按钮时完美地计数，但是当您退出应用程序并且 return 计数开始再次计数而不是在 IsolatedStorageSettings 中保存的数字时！！统计IsolatedStorageSettins中保存的个数时如何做到？（我用的是Windowsphone8.1 silverlight）

IsolatedStorageSettings setting = IsolatedStorageSettings.ApplicationSettings;
    int Points;
    // Constructor
    public MainPage()
    {
        InitializeComponent();
        this.Loaded += Page2_Loaded;
    }

    private void Page2_Loaded(object sender, RoutedEventArgs e)
    {

        if (setting.Contains("save"))
        {

            PointsText.Text = setting["save"].ToString();

        }

    }

    private void Counts_Click(object sender, RoutedEventArgs e)
    {
        Points = Points + 1;
        setting["save"] = Points;
        PointsText.Text = setting["save"].ToString();
    }
}

Answer 1

根据您的代码 Points 将始终在页面加载时初始化为 0，当您单击计数时它将从 0 开始递增。您需要从 appsettings 加载计数并将其放入 Points

private void Page2_Loaded(object sender, RoutedEventArgs e)
{
    if (setting.Contains("save"))
    {
        //Initialize Points with the value from settings
        Points = int.Parse(setting["save"].ToString());
        PointsText.Text = Points.ToString();            
    }

}

在 IsolatedStorageSettings 中恢复计数

Resume Count in IsolatedStorageSettings

c#

silverlight

windows-phone

windows-phone-8.1