private void searchAndViewItemsSummaryToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            this.Hide();
            ItemsSummary summary = new ItemsSummary();

            summary.Show();
        }
        private void searchToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Hide();
            ItemsSummary search = new ItemsSummary();

            this.Close();
            search.Show();
        }