C# ve SQL

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;
using System.IO;

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

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            Form2 yeniForm = new Form2();
            yeniForm.Show();

        }

        private void button2_Click(object sender, EventArgs e)
        {
            Form3 yeniForm = new Form3();
            yeniForm.Show();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            //Form1 guncelForm = new Form1();
            this.Close();
        }
    }
}