cronometro en c# (Orientado a objetos).

Estos son los elementos que necesitaremos en nuestro formulario 

 

codigo del programa;

 

public partial class cronometro : Form

    {

        int h = 0, m = 0, s = 0;

        public cronometro()

        {

            InitializeComponent();

        }

        private void iniciar_Click(object sender, EventArgs e)

        {

            h = 0;

            m = 0;

            s = 0;

            lh.Text = "00";

            lm.Text = "00";

            ls.Text = "00";

            button1.Text = "detener";

            button1.Enabled = true;

            timer1.Enabled = true;

        }

        private void button1_Click(object sender, EventArgs e)

        {

            if (button1.Text == "detener")

            {

                button1.Text = "reanudar";

                timer1.Enabled = false;

            }

            else

            {

                button1.Text = "detener";

                timer1.Enabled = true;

            }

         

        }

        private void timer1_Tick(object sender, EventArgs e)

        {

            s = s + 1;

            if (s == 60)

            {

                s = 0;

                m = m + 1;

                if (m == 60)

                {

                    m = 0;

                    h++;

                    if (h == 24) h = 0;

                }

            }

                ls.Text = Convert.ToString(s);

                lm.Text = Convert.ToString(m);

                lh.Text = Convert.ToString(h);

            if(s<10) ls.Text = "0"+ls.Text;

            if(m<10) lm.Text = "0"+lm.Text;

            if(h<10) lh.Text = "0"+lh.Text;

            }

        private void button2_Click(object sender, EventArgs e)

        {

            if (MessageBox.Show(" Deseas salir ", "Salir", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)

            {

                MessageBox.Show("Ud decidio salir", "adios", MessageBoxButtons.OK, MessageBoxIcon.Warning);

                this.Close();

            }

            else

            {

                MessageBox.Show("Ud decidio no salir", "...");

            }

        }