Access Of Public Method Between Forms

Question

I am trying to get access to Form1’s public method on another form Form2 as below. I have a textbox6 control on form1 and there is public method to bind it. But

Answer 1

Also you may use events:

    public Form1()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        Form2 f2 = new Form2();
        f2.ButtonClickAction += f2_ButtonClickAction;
        f2.Show();
    }

    void f2_ButtonClickAction()
    {
        amount_sum();
    }

Form2:

    public Form2()
    {
        InitializeComponent();
    }

    public event Action ButtonClickAction;

    private void button1_Click(object sender, EventArgs e)
    {
        Action a = ButtonClickAction;
        if (a != null)
            a();
        this.Close();
    }