generated arrays, each containing 100 numbers.

thank you all those comments has really help me it was to do with the classes thanks alot

hi

You can refer this below code to solve your issue.

Example:


namespace PickLarger
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        class click
        {
            public static int buttonclick = 0;
        }
        public int totalClicks()
        {
            int total=0;

            for(total = 0; total <= 100; total++)
            {
                total++;
                MessageBox.Show("" + total);
            }

            return total;
        }
        public int getRandomNumberbtn1()
        {
            // Finds random number between 1 and 100 

            Random number = new Random();
           
            int randomNumberbtn1 = number.Next(0, 100);
            return randomNumberbtn1;
        }
        public int getRandomNumberbtn2()
        {
            // Finds random number between 1 and 100 

            Random number = new Random();

            int randomNumberbtn2 = number.Next(0, 100);
            return randomNumberbtn2;
        }
        private void btn1_Click(object sender, EventArgs e)
        {
                click.buttonclick++;// Counting button clicks

                int r1 = getRandomNumberbtn1();
                MessageBox.Show("Your chose Button One which equals :  " + getRandomNumberbtn1());
                int r2 = getRandomNumberbtn2();
                MessageBox.Show("Button Two's random Number is :  " + getRandomNumberbtn2());
                int highNo;
                if (r1 > r2)
                {
                    highNo = r1;
                    MessageBox.Show("You Win : " + highNo);
                }
                else
                {
                    highNo = r2;
                    MessageBox.Show("You Lose");
                }
                MessageBox.Show("You have clicked a button:  " + click.buttonclick + "  Times");//Displaying button click count
        }
        private void btn2_Click(object sender, EventArgs e)
        {
                click.buttonclick++;// Counting button clicks

                int r1 = getRandomNumberbtn1();
                MessageBox.Show("Button One's random Number is :  " + getRandomNumberbtn1());
                int r2 = getRandomNumberbtn2();
                MessageBox.Show("Your chose Button Two which equals :  " + getRandomNumberbtn2());
                int highNo;
                if (r2 > r1)
                {
                    highNo = r2;
                    MessageBox.Show("You Win : " + highNo);
                }
                else
                {
                    highNo = r1;
                    MessageBox.Show("You Lose");
                }
                MessageBox.Show("You have clicked a button:  " + click.buttonclick + "  Times");//Displaying button click count
        }
        public void close()
        {
            int i = click.buttonclick;
            for (i=0;i>3;i++)
            {
                Application.Exit();             // trying to close the form after button clicks equal more than 3
            }
        }
        private void btnExit_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }
    }
}

Welcome gemma to C# Corner.

We can only guess about your problem unless you need to provide full description or details about your post. 

I suppose your code is missing a class and check that..this error usually occurs when you miss class and directly write methods inside a namespace