Keep common functions in separate cs file? (C#)

Question

I have a common functions AppPath() that is used in several windows forms of my application, instead of declaring it in each form, I would like to place it in a separate cs file.

I have created a separate class cs file, which I gave a different namespace (modUtilities) and put all functions inside a modUtilities class.

namespace modUtilities
{
    public class modUtilities
    {
        // all functions such as AppPath()....
    }
}

But I can't figure out how to use function from modUtilities inside different windows forms where I need it. I am trying to use "using modUtilities", instead of creating new instance (modUtilities modU = new modUtilities()) Can someone help me?

Answer 1

if your methods are static within the class, you can do

using modUtilities;

then

var something = modUtilities.AppPath();

if not, you'll need to create an instance of the class.

modUtilities mod = new modUtilities();