Vežba 07, Zadatak 3

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 Vezba_07_2017_Zad3
{
    public partial class Form1 : Form
    {
        DateTime dt;
        public Form1()
        {
            InitializeComponent();
        }
        // s tim sto mora na svaki radio button da se postavi da je ova funkcija handler

        private void radioButton1_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton1.Checked)
            {
                label2.Text = radioButton1.Text;
            }
            if (radioButton2.Checked)
            {
                label2.Text = radioButton2.Text;
            }
            if (radioButton3.Checked)
            {
                label2.Text = radioButton3.Text;
            }
            if (radioButton4.Checked)
            {
                label2.Text = radioButton4.Text;
            }
            if (radioButton5.Checked)
            {
                label2.Text = radioButton5.Text;
            }
            if (radioButton6.Checked)
            {
                label2.Text = radioButton6.Text;
            }
            if (radioButton7.Checked)
            {
                label2.Text = radioButton7.Text;
            }
            if (radioButton8.Checked)
            {
                label2.Text = radioButton8.Text;
            }
            if (radioButton9.Checked)
            {
                label2.Text = radioButton9.Text;
            }
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            timer1.Start();
            dt = DateTime.Now;
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            label3.Text = DateTime.Now.ToLongTimeString();
            if (radioButton1.Checked)
            {
                label4.Text = DateTime.Now.AddHours(-10).ToLongTimeString();
            }
            else if (radioButton2.Checked)
            {
                label4.Text = DateTime.Now.AddHours(-7).ToLongTimeString();
            }
            else if (radioButton3.Checked)
            {
                label4.Text = DateTime.Now.AddHours(-1).ToLongTimeString();
            }
            else if (radioButton4.Checked)
            {
                label4.Text = DateTime.Now.AddHours(0).ToLongTimeString();
            }
            else if (radioButton5.Checked)
            {
                label4.Text = DateTime.Now.AddHours(0).ToLongTimeString();
            }
            else if (radioButton6.Checked)
            {
                label4.Text = DateTime.Now.AddHours(+2).ToLongTimeString();
            }
            else if (radioButton7.Checked)
            {
                label4.Text = DateTime.Now.AddHours(+6).ToLongTimeString();
            }
            else if (radioButton8.Checked)
            {
                label4.Text = DateTime.Now.AddHours(+7).ToLongTimeString();
            }
            else if (radioButton9.Checked)
            {
                label4.Text = DateTime.Now.AddHours(+9).ToLongTimeString();
            }

        }
    }
}