Is it possible to create global settings that are visible to all classes in the project? [Like modules in VB]

I am creating a project with many classes. I need to have a kind of settings class AKA module in VB that is accessible from all other classes. I want to know a 开发者_StackOverflow社区method to achieve that without creating a separate settings object and passing it to each other class constructor.

Thanks

Use a static class with static fields

public static class Settings
{
  public static string a = "a";
  public static string b = "b";
  public static bool c = true;
}

and in your other classes

if(Settings.c) ...

You can use the ConfigurationManager class. This has the bonus of working with the standard .NET config files.

As far as I know, My.Settings is a wrapper around this class.

The easiest way to accomplish this is to create a public static class. Under the covers, that's all VB does anyway.

Here is something I just did. This uses YAXLib (http://yaxlib.codeplex.com/) but you could use any serializer. I don't know how good the example is though.

public class FrameworkSettings
{
    public static int ListenPort { get; set; }
    public static int NumberOfOutgoingLines { get; set; }

    public static void Load(FrameSettings settings)
    {
        ListenPort = settings.ListenPort;
        NumberOfOutgoingLines = settings.NumberOfOutgoingLines;
    }
}
public class FrameSettings
{
    [YAXErrorIfMissed(YAXExceptionTypes.Warning, DefaultValue = 5060)]
    public int ListenPort { get; set; }
    [YAXErrorIfMissed(YAXExceptionTypes.Warning, DefaultValue = 5)]
    public int NumberOfOutgoingLines { get; set; }

    public void Save()
    {
        ListenPort = FrameworkSettings.ListenPort;
        NumberOfOutgoingLines = FrameworkSettings.NumberOfOutgoingLines;
    }
}
public class SettingsManager
{
    YAXSerializer _mSerializer;
    FrameSettings _mFrameSettings;
    public SettingsManager()
    {
        _mFrameSettings = new FrameSettings();
        if (!Directory.Exists("data"))
        {
            Directory.CreateDirectory("data");
        }
    }
    public void LoadSettings()
    {
        _mSerializer = new YAXSerializer(typeof(FrameSettings), 
                                        YAXExceptionHandlingPolicies.ThrowErrorsOnly, 
                                        YAXExceptionTypes.Warning);

        _mFrameSettings = (FrameSettings)_mSerializer.DeserializeFromFile("data\\settings.xml");
        FrameworkSettings.Load(_mFrameSettings);
    }
    public void SaveSettings()
    {
        _mFrameSettings.Save();
        _mSerializer.SerializeToFile(_mFrameSettings, "data\\settings.xml");
    }

static class is one way. But config files were made to hold the settings and are more appropriate and easy to use. they are accessed using ConfigurationManager class.