C# ปริ้นจาก DataGridView ไม่ได้ครับ มีรูปให้ดูครับ

 private void btnPrint_Click(object sender, EventArgs e)
        {
            PrintDialog printDialog = new PrintDialog();
            printDialog.Document = printDocument1;
            printDialog.UseEXDialog = true;
            //Get the document
            if (DialogResult.OK == printDialog.ShowDialog())
            {
                printDocument1.DocumentName = "Test Page Print";
                printDocument1.Print();
            }
        }

        private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            // Print Header
            e.Graphics.DrawString("Header Report Title", new Font("Arial", 20), Brushes.Black, 10, 10);
            e.Graphics.DrawLine(Pens.Gray, 10, 50, 830, 50);

            // Print content
            int position = 130;
            e.Graphics.DrawString("-- Data from Data Grid View --", new Font("Arial", 16), Brushes.Black, 10, 100);
            foreach (DataGridViewRow item in dataGridSearch.Rows)
            {
                e.Graphics.DrawString((string)item.Cells[0].Value, new Font("Arial", 10), Brushes.Black, 10, position);
                position += 20;
            }

            // Print Footer
            e.Graphics.DrawLine(Pens.Gray, 10, 1050, 830, 1050);
            e.Graphics.DrawString("Footer Report Title", new Font("Arial", 20), Brushes.Black, 10, 1060);
        }