private void MAX_Click(object sender, EventArgs e)
        {
            PictureBox btn = (PictureBox)sender;

            //newform.WindowState = FormWindowState.Maximized;
            Bookkeeping.DoMaximize(this, btn);
        }
        private void MAX_Click(object sender, EventArgs e)
        {
            //this.WindowState = FormWindowState.Maximized;
            //Dashboard newform = (Dashboard)Application.OpenForms["Dashboard"];

            PictureBox btn = (PictureBox)sender;

            //newform.WindowState = FormWindowState.Maximized;
            Bookkeeping.DoMaximize(this, btn);
        }