Looping back to start

Question

I am building this program for my CIT class and want to have it loopback and create a new number when the number is guessed correctly. I read over the section in my textbook that covers this but I am a little confused as to how to add this and where exactly.

Here is the code I have now:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Guess_My_Number
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        int number;

        private void Form1_Load(object sender, EventArgs e)
        {
            // Generate the number.
            Random generator = new Random();
            number = generator.Next(0, 100);
            MessageBox.Show("Can you guess the number I am thinking of     
            between 1 and 100?");
        }

        private void guessButton_Click(object sender, EventArgs e)
        {
            // Get the guess from the textbox.
            int guess = Convert.ToInt32(guessTextbox.Text);

            // Check if the number is right.
            if (guess > number)
            {
                MessageBox.Show("Too high, try again.");
            }
            if (guess < number)
            {
                MessageBox.Show("Too low, try again.");
            }
            if (guess == number)
            {
            MessageBox.Show("Congratulations, you guessed my number!");
            }
        }

        private void exitButton_Click(object sender, EventArgs e)
        {
            // Clost the program.
            this.Close();
        }
    }
}

Answer 1

namespace Guess_My_Number
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        int number;
        Random generator = new Random();

        private void Form1_Load(object sender, EventArgs e)
        {
            GenerateNewNumber();
        }

        private void GenerateNewNumber()
        {
            number = generator.Next(0, 100);
            MessageBox.Show("Can you guess the number I am thinking of     
            between 1 and 100?");
        }

        private void guessButton_Click(object sender, EventArgs e)
        {
            // Get the guess from the textbox.
            int guess = Convert.ToInt32(guessTextbox.Text);

            // Check if the number is right.
            if (guess > number)
            {
                MessageBox.Show("Too high, try again.");
            }
            if (guess < number)
            {
                MessageBox.Show("Too low, try again.");
            }
            if (guess == number)
            {
                MessageBox.Show("Congratulations, you guessed my number!");
                GenerateNewNumber();
            }
        }

        private void exitButton_Click(object sender, EventArgs e)
        {
            this.Close();
        }
    }
}