private void stockReportToolStripMenuItem_Click(object sender, EventArgs e)
        {
            //change page by clicking the item Fill in the page name
            GoodsReceivedNotes stockReport = new GoodsReceivedNotes();

            stockReport.Show();
        }
        private void stockReportToolStripMenuItem_Click_1(object sender, EventArgs e)
        {
            this.Hide();
            GoodsReceivedNotes stockReport = new GoodsReceivedNotes();

            stockReport.Show();
        }