C# pointer - Static calling

My short code :

class A
{
   private B b;
   public void b(){};
}

class B
{
   private void a() 
   {
   A.b();
   }
}

I can make void b in A st开发者_Python百科atic but I has some Controls like this.Controls.Add();

They must be static too, but I don't know how to implement it, can you show me or do we have a better way for this solution :)

You could either do

class B {
    private readonly A instance;
    public B(A instance) { this.instance = instance; }
    private void a() {
        instance.b();
    }
}

or

class B {
    private void a(A instance) {
        instance.b();
    }
}

depending on what it is that you are trying to do.

(Note that you need to rename either B b or void b in A.)

To use control in static function, the control have to be static too.

private static Button StaticButtonObject = new Button();
public static void AddControl()
{
    StaticButtonObject.Text = "Button";
}