private void pictureBox1_Click(object sender, EventArgs e)
        {
            this.Hide();
            ADDConsecutiveSession UI = new ADDConsecutiveSession();

            UI.Show();
            UI.BringToFront();
        }
        private void btnviewRoomDetails_Click(object sender, EventArgs e)
        {
            this.Hide();
            ADDConsecutiveSession UI = new ADDConsecutiveSession();

            UI.Show();
            UI.BringToFront();
        }