在单独的类/表单中使用引用的C＃对象

Question

I've got a Windows Form program that creates a Config object which contains various configuration variables used by my program. Within the main form, it contains a button to open a new configuration form, where it passes the Config object as a reference -

FormConfig button = new FormConfig(ref config);
            button.ShowDialog();

Now in the FormConfig class, I can access the Config object within the main constructor

public FormConfig(ref Config config)
        {
            InitializeComponent();
            // can access config.xyz OK here
        }

However within the new form, I've got a button that calls another function that needs to access the reference Config object, however I'm struggling to find a clean way to do so. I can create another Config object as part of the FormConfig class, and then copy the referenced Config to it in the main constructor, however then the original config object doesn't get updated.

How can I achieve this?

PS apologies in advance if this is already answered, but my searches have so far failed to find a solution, possibly because I'm not sure what the correct search terms should be.

Answer 1

And the solution thanks to @cmos, is to declare the Config class as static, which negates the need to use any referencing or passing objects between classes/functions -

public static class Config
{
     public static bool SettingA = true;
}

Which means I can access and modify the Config object from anywhere within the same namespace with the following code, without needing to have a class instance -

Config.SettingA

Thanks to all those who helped point me in the right direction.