Problem with Delegates

Question

Hi all
I'm having a problem with delegate. In my project I have 2 forms, form1 and form2. From form1 I have a button there just for opening form2. And from form2 I have a text box there to enter an Int value. After getting a value from the text box I want to send it back to form1 and appear in a text box on form1.

I do this with a delegate but I don't know if my way is the way you use to solve this problem or not.

Here is my code:

Form1


 public delegate void TestDelegate(int i);
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Form2 frmOpen = new Form2();            
            frmOpen.ShowDialog();
        }
        public void GetValueA(int i)
        {
            textBox1.Text = i.ToString();         
        }
    }


Form2

    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            int b;
            b = Convert.ToInt32(textBox1.Text);
            
            Form1 frm1=new Form1();
            TestDelegate td = new TestDelegate(frm1.GetValueA);
            td(b);
            Close();
        }
    }