LabExer5_Index.cs

using System;
using System.Windows.Forms;
using System.Drawing;

namespace MyForm
{
    public class Index : Form
    {
        private Button bLogin;
        private Button bRegister;

        public Index(){
            InitializeComponents();
        }

        public void InitializeComponents()
        {
            this.Text = "Index Page";
            this.BackColor = Color.Lavender;
            this.ForeColor = Color.Black;
            this.Size = new Size(250, 300);
            this.StartPosition = FormStartPosition.CenterScreen;

            bLogin = new Button();
            bLogin.Location = new Point(80, 90);
            bLogin.Click += bLogin_Click;
            bLogin.Text = "Log-in";

            bRegister = new Button();
            bRegister.Location = new Point(80, 120);
            bRegister.Click += bRegister_Click;
            bRegister.Text = "Register";

            this.Controls.Add(bLogin);
            this.Controls.Add(bRegister);
        }

        public void bLogin_Click(object sender, EventArgs e)
        {
            Login log = new Login();
            log.Show();
            this.Hide();
        }

        public void bRegister_Click(object sender, EventArgs e)
        {
            Register reg = new Register();
            reg.Show();
            this.Hide();
        }
    }
}