Making a number guessing game object-oriented

[JohnYossasian]

I am trying to learn object oriented concepts. I have code for a simple number guessing game using windows forms. I am trying to make object oriented. I have had some success with console applications, but with windows forms I am increasingly confused. I realize I methods like initializegame(), gameWon(), GameLost(), FinishGame() but I'm having a hard time creating objects, and calling them, etc... Anybody have any suggestions? Also, is there a code formatting tool for this forum?

Namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        Random number = new Random(); // This is declaring number; our randomizer
        int randomNumber; // Our randomized number
        int guessedNumber; // Our guessed number


        private void Form1_Load(object sender, EventArgs e)
        {
            randomNumber = number.Next(1, 10);

        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
            if (textBox1.Text != "")
            {
                try
                {
                    guessedNumber = int.Parse(textBox1.Text);
                }
                catch
                {
                    MessageBox.Show("Please enter an integer from 1-10", "Error!");
                    textBox1.Clear();
                }
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            guessedNumber = int.Parse(textBox1.Text);
            bool win = false;
            bool wrong = false;
            if (textBox1.Text == "")
            {
                MessageBox.Show("Please enter an integer from 1-10!", "Error!");
                textBox1.Clear();
            }
            else
            {
                if (guessedNumber >= 1 && guessedNumber <= 10)
                {
                    if (guessedNumber == randomNumber)
                    {
                        win = true;
                        if (win == true)
                        {
                            if (MessageBox.Show("You have won! Would you like to play again ?", "You win!", MessageBoxButtons.YesNo) == DialogResult.Yes)
                            {
                                randomNumber = number.Next(1, 10);
                                label3.Text = "4";
                                textBox1.Clear();
                            }
                            else
                            {
                                this.Close();
                            }
                        }
                        else
                        {
                            // Do nothing
                        }
                    }
                    else
                    {
                        wrong = true;
                    }
                }
                else
                {
                    MessageBox.Show("Please enter an integer from 1-10!", "Error!");
                    textBox1.Clear();
                }
            }
            if (wrong == true)
            {
                label3.Text = (int.Parse(label3.Text) - 1).ToString();
                if (label3.Text == "0")
                {
                    if (MessageBox.Show("You have lost! The randomized number was " + randomNumber + ". Would you like to play again ?", "You lost!", MessageBoxButtons.YesNo) == DialogResult.Yes)
                    {
                        randomNumber = number.Next(1, 10);
                        label3.Text = "4";
                        textBox1.Clear();
                    }
                    else
                    {
                        this.Close();
                    }
                }
                else
                {
                    if (guessedNumber > randomNumber)
                    {
                        MessageBox.Show("Lower!", "Wrong!");
                        textBox1.Clear();
                    }
                    else
                    {
                        MessageBox.Show("Higher!", "Wrong!");
                        textBox1.Clear();
                    }
                }
            }
            else
            {
                // Do nothing
            }
 }

        private void progressBar1_Click(object sender, EventArgs e)
        {

        }
    }
 }