PAMIĘTAJ O PODPIĘCIU EVENTÓW


W Form1:

  public partial class Form1 : Form
    {
        private string tekst;
        public Form1()
        {
            InitializeComponent();
        }
        public string Call
        {
            get { return tekst; }
            set { textBox2.Text = value; }
        }

        Form2 form2 = null;
        private void button1_Click(object sender, EventArgs e)
        {
            tekst = textBox1.Text;
            if (form2 == null)
                form2 = new Form2(this);
            form2.Show();
            form2.wypisz(tekst);
        }

    }


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

        private Form1 mainForm = null;
        public Form2(Form callform)
        {
            mainForm = callform as Form1;
            InitializeComponent();
            textBox2.Text=this.mainForm.Call;
        }
        
        private void Form2_FormClosing(object sender, FormClosingEventArgs e)
        {
            this.Hide();
            e.Cancel = true;
        }

        public void wypisz(string x)
        {
            textBox2.Text = x;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            this.mainForm.Call = textBox1.Text;
        }
    }