BAZE PODATAKA LV5 Z1

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;
using System.Data.SqlClient;

namespace Baze_LV6_predlozak
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void btnSve_Click(object sender, EventArgs e)
        {
            // OVDJE SLIJEDI PRIMJER IZ PREDLOŠKA:
            SqlConnection conn = new SqlConnection("Data Source=192.168.26.14;Initial Catalog=stuslu;User ID=stuslu;Password=stuslu");
            conn.Open();
            string statement = "SELECT * FROM student";
            SqlDataAdapter dataAdapter = new SqlDataAdapter(statement, conn);
            DataTable dt = new DataTable();
            dataAdapter.Fill(dt);
            dgvPodaci.DataSource = dt;
            conn.Close();
        }

        private void btnTrazi_Click(object sender, EventArgs e)
        {
            // OVDJE PISATI KOD 1. ZADATKA IZ PREDLOŠKA:
            char spol;
            if (rbM.Checked)
                spol = 'M';
            else
                spol = 'F';

            SqlConnection conn = new SqlConnection("Data Source=192.168.26.14;Initial Catalog=stuslu;User ID=stuslu;Password=stuslu");
            conn.Open();
            string statement = "SELECT * FROM student WHERE (ime = '" + txtIme.Text + "' OR prezime = '" + txtPrezime.Text + "') AND spol = '" + spol +"';";
            SqlDataAdapter dataAdapter = new SqlDataAdapter(statement, conn);
            DataTable dt = new DataTable();
            dataAdapter.Fill(dt);
            dgvPodaci.DataSource = dt;
            conn.Close();
        }
    }
}