打印预览显示data wo dataGridView的数据，但打印机未打印Girdview的数据

如何解决打印预览显示data wo dataGridView的数据，但打印机未打印Girdview的数据

我的打印预览工作正常。但是打印机不打印gridview的数据。 这是我的代码。仅名称，日期和其他文本正在打印。我已附加了打印预览和打印机输出的两个图像。 第一张图片是“打印预览”输出，第二张图片是“打印机”输出，（我另存为pdf） This is Print Preview's Output

This is Printer's Output

private int numberOfItemsPerPage = 0;
    private int numberOfItemsPrintedSoFar = 0;     
    int count = 1;
    private void printDocument1_PrintPage(object sender,System.Drawing.Printing.PrintPageEventArgs e)
    {
        e.Graphics.DrawString(DateTime.Now.ToShortDateString(),new Font("Calibri",11,FontStyle.Regular),Brushes.Black,new Point(350,190));
        e.Graphics.DrawString("M/S: " + customername.Text.Trim(),10,FontStyle.Bold),new RectangleF(20f,190f,290f,100f));
        e.Graphics.DrawString(addtionaltext.Text.Trim(),685f,400f,100f));

        int yPos = 235;
        int xPos = 35;

        for (int i = numberOfItemsPrintedSoFar; i < beltlist.Count; i++)
        {
            numberOfItemsPerPage++;

            if (numberOfItemsPerPage <= 15 && count<= 3)
            {
                numberOfItemsPrintedSoFar++;

                if (numberOfItemsPrintedSoFar <= beltlist.Count)
                {
                    
                    e.Graphics.DrawString(beltlist[i].BrandName,new Point(xPos,yPos));
                    if (beltlist[i].BrandName !="")
                    {
                        yPos += 30;
                        numberOfItemsPerPage++;
                    }
                    e.Graphics.DrawString(beltlist[i].BeltSize.ToString() + "–" + beltlist[i].QTY.ToString(),yPos));
                    yPos += 30;


                }
                else
                {
                    e.HasMorePages = false;
                }
            }
            else
            {
                count++;
                yPos = 235;
                xPos += 150;
                numberOfItemsPerPage = 0;
                if (count > 3)
                {
                    e.HasMorePages = true;
                    xPos = 35;
                    count = 1;
                    return;
            }
}
    }

        private void PrintPreview_Click(object sender,EventArgs e)
        {
            numberOfItemsPerPage = 0;
            count = -1;
            numberOfItemsPrintedSoFar = 0;
            //printDocument1 = new System.Drawing.Printing.PrintDocument();
            printPreviewDialog1.Document = printDocument1;
            printDocument1.DefaultPageSettings.PaperSize = new System.Drawing.Printing.PaperSize("pprnm",446,730);
            printPreviewDialog1.ShowDialog();
        }

        private void PrintButton_Click(object sender,EventArgs e)
        {
        
            printDocument1.Print();
        }