private void pictureBox1_Click(object sender, EventArgs e)
        {
            kullanicikontrol yeni = new kullanicikontrol();

            yeni.Show();
            this.Hide();
        }
        private void Form1_FormClosed(object sender, FormClosedEventArgs e)
        {
            kullanicikontrol yeni = new kullanicikontrol();

            yeni.Show();
        }