private void exportAllTablesToolStripMenuItem_Click(object sender, EventArgs e)
        {
            DGVExcelWriter writer = new DGVExcelWriter();

            Parallel.ForEach(forms, form =>
            {
                List <DataGridView> grid_views = form.GetDGVs();
                writer.ExportToExcel(grid_views, (form as Form).Name);
            });
            SaveExcelFile(writer, (current_form as Form).MdiParent.Name + "_table.xlsx");
        }
        private void exportTablesToolStripMenuItem_Click(object sender, EventArgs e)
        {
            List <DataGridView> grid_views = current_form.GetDGVs();

            if (grid_views == null)
            {
                MessageBox.Show("There is no table on this page to export. Please navigate to another page with the Results tab.");
                return;
            }

            DGVExcelWriter writer = new DGVExcelWriter();

            writer.ExportToExcel(grid_views, (current_form as Form).Name);
            SaveExcelFile(writer, (current_form as Form).Name + "_table.xlsx");
        }