Takmicari

//////////////////////////////////////////////////FORM 1 SA KLASOM TAKMICAR///////////////////////////////////////////////////////////
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Form2 f2 = new Form2();
            if(f2.ShowDialog()==DialogResult.OK)textBox1.Text + Form2.t1.ToString());
        }


    }
    public class Takmicar
    {
        private string ime;
        private string prezime;
        private int pismeni;
        private int usmeni;

        public Takmicar(string i, string p, int pi, int u)
        {
            ime = i;
            prezime = p;
            pismeni = pi;
            usmeni = u;
        }
        public override string ToString()
        {
            return ime + " " + prezime + " " + (pismeni + usmeni);
        }
    }
}
//////////////////////////////////////////////////FORM 2///////////////////////////////////////////////////////////
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }
        public static Takmicar t1;
        private void textBox2_TextChanged(object sender, EventArgs e)
        {
            textBox3.Enabled = true;
            textBox4.Enabled = true;
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
            textBox2.Enabled = true;
        }
        int u;
        int p;
        private void checkBox1_CheckedChanged(object sender, EventArgs e)
        {

            if (checkBox1.Checked)
            {
                try
                {
                    u = Convert.ToInt32(textBox3.Text);
                    p = Convert.ToInt32(textBox4.Text);
                    button1.Enabled = true;

                }
                catch (Exception f)
                {
                    MessageBox.Show(f.Message + "Greska", "Greska", MessageBoxButtons.YesNo, MessageBoxIcon.Error);
                }
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            t1 = new Takmicar(textBox1.Text, textBox2.Text, u, p);
        }
    }
}