Question

Let’s say I have a simple function like this:

public static string randomthing(string var1) 
{
    string var2 = "hello world";
    return var2;
}

I would like to be able to call it from different classes. How can I do it?

I tried to create a blank file and just paste the function there but of course it doesn’t work that way.

Answer 1

If you want to share code, you need to create a third class that can be used by the other classes.

This can be done as an extension method, a static class or regular class (meaning you need an instance of the class).

Static class:

public static MyClass
{
    public static string randomthing(string var1) {

        string var2 = "hello world";
        return var2;
    }
}

// Call it: MyClass.randomthing("a string");

Extension method:

public MyClass
{
    public static string randomthing(this string var1) {

        string var2 = "hello world";
        return var2;
    }
}

// Call it: "a string".randomthing();

Regular class:

public static MyClass
{
    public static string randomthing(string var1) {

        string var2 = "hello world";
        return var2;
    }
}

// Call it: var myClass = new myClass(); 
//          myClass.randomthing("a string");