Storing Windows Phone User Settings: Listing 1

The Settings class.

public static class Settings
    private const string LocationEnabledKey = "LocationEnabled";
    public static bool LocationEnabled
        get { return IsolatedStorageSettings.ApplicationSettings
                                            .SafeValue<bool>(LocationEnabledKey); }
        set { IsolatedStorageSettings.ApplicationSettings[LocationEnabledKey] = value; }

    private const string RefreshIntervalInMinutesKey = "RefreshIntervalInMinutes";
    public static int RefreshIntervalInMinutes
        get { return IsolatedStorageSettings.ApplicationSettings
                                            .SafeValue<int>(RefreshIntervalInMinutesKey); }
        set { IsolatedStorageSettings.ApplicationSettings
                                     [RefreshIntervalInMinutesKey] = value; }

public static class SettingsHelper
    public static T SafeValue<T>(this IDictionary<string,object> settings, string key )
        object outValue;
        if(settings.TryGetValue(key, out outValue))
            if (outValue is T) return (T) outValue;
        return default(T);

About the Author

Nick Randolph runs Built to Roam, a consulting company that specializes in training, mentoring and assisting other companies build mobile applications. With a heritage in rich client applications for both the desktop and a variety of mobile platforms, Nick currently presents, writes and educates on the Windows Phone platform.

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