private void pictureBox4_Click(object sender, EventArgs e)
        {
            this.Hide();
            AllAuctions allAuction = new AllAuctions();

            allAuction.Show();
        }
        private void createaucbtn_Click(object sender, EventArgs e)
        {
            AllAuctions allAuction = new AllAuctions();

            this.Hide();
            allAuction.Show();
        }