Custom application settings

Question

I want to be able to have a Settings class that is available throughout the entire application, however I still want to be able to test that the settings object gets populated. Most of the settings come from the registry.

At the moment I have this but I'm not sure where to populate that, so that I can mock the service used to populate it.

public class Program {
    public static Settings SystemSettings = new SystemSettings();

    public void Main(string[] args) {
         SystemSettings = new RegistryService().GetRegSettings();
    }
}

Any thoughts on this would be great.

Answer 1

Create a singleton class ,all class in your application can access to it

public class Settings
{
    private static Settings systemSettings;
    public static Settings SystemSettings 
    {
        get
        {
            if (systemSettings == null)
                systemSettings = new Settings();
            return systemSettings;
        }
    }
    public int SettingValue1{ get; set; }
    private Settings()
    {
        SettingValue1 = 1;//from registery or somewhere
    }


}

ans use this class easily

int k = Settings.SystemSettings.SettingValue1;