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.Data.Sql;
using System.Data.SqlClient;
using System.Windows.Forms;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            SqlConnection baglanti = new SqlConnection("Data Source=DESKTOP-V2PKTHL;Initial Catalog=itudeneme;Integrated Security=True");
            SqlCommand komut = new SqlCommand("insert into itudeneme1 (ogr_ad, ogr_soyad, ogr_sinif, Dersler)Values(@adi, @soyadi, @sinif, @ders)", baglanti);
            baglanti.Open();
            komut.Parameters.AddWithValue("@adi", textBox1.Text);
            komut.Parameters.AddWithValue("@soyadi", textBox2.Text);
            komut.Parameters.AddWithValue("@sinif", textBox3.Text);
            komut.Parameters.AddWithValue("@ders", textBox4.Text);
            int donen = komut.ExecuteNonQuery();
            if (donen == 0)
            {
                MessageBox.Show("Hata");
            }
            else if (donen == 1)
            {
                MessageBox.Show("Kayıt Başarılı.");
            }
            baglanti.Close();
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

        }

        private void button2_Click(object sender, EventArgs e)
        {
            SqlConnection baglanti = new SqlConnection("Data Source=DESKTOP-V2PKTHL;Initial Catalog=itudeneme;Integrated Security=True");
            DataTable tablo = new DataTable("itudeneme1");
            SqlDataAdapter aptr = new SqlDataAdapter("Select * from itudeneme1", baglanti);
            baglanti.Open();
            tablo.Clear();
            aptr.Fill(tablo);
            dataGridView1.DataSource = tablo;
            baglanti.Close() ;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            SqlConnection baglanti = new SqlConnection("Data Source=DESKTOP-V2PKTHL;Initial Catalog=itudeneme;Integrated Security=True");
            DataTable tablo = new DataTable("itudeneme1");
            SqlDataAdapter aptr = new SqlDataAdapter("Select * from itudeneme1", baglanti);
            baglanti.Open();
            tablo.Clear();
            aptr.Fill(tablo);
            dataGridView1.DataSource = tablo;
            baglanti.Close();
        }
    }
}