Help need with crystal report printing

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C#

Visual-Studio

SAP

printing

, +

I want to print barcodes from crystal reports. What we are failing to perform is printing it to CENTER of page sized 5.199*2.600 cm .We are missing something. This is a freelance work we are doing from home. Our work is not complete until generation of barcodes possible. All other works are done. We don't have zebra printer of client with us to check fast test cases. So we have to take builds each time and have to wait for client reply on it. Client is supportive to us since we don't have experience on this before. Codes we tried are commented. Output we got is not fitting inside the paper.
barcode error - Album on Imgur[^]

Any suggestions.

What I have tried:

private void barcode_Click(object sender, EventArgs e)
          {
              try
              {

                  if (txtbarqty.Text != null)
                  {
                      for (int qt = 0; qt <= Convert.ToInt32(txtbarqty.Text); qt++)
                      {
                          ds.Rows.Add(txtID.Text, txtName.Text, txtRate.Text);
                          cry.Load("CrystalReport3.rpt");
                          cry.SetDataSource(ds);
                          crystalReportViewer1.ReportSource = cry;
                      }
                  }
                          cry.PrintOptions.PaperOrientation = CrystalDecisions.Shared.PaperOrientation.DefaultPaperOrientation;
                          cry.PrintOptions.PaperOrientation = CrystalDecisions.Shared.PaperOrientation.DefaultPaperOrientation;
                          cry.PrintOptions.PaperSize = CrystalDecisions.Shared.PaperSize.DefaultPaperSize;
                          cry.PrintToPrinter(Convert.ToInt32(txtbarqty.Text),false, 0, 0);
                  
          
                      //crystalReportViewer1.PrintReport();
                      txtbarqty.Text = "";
                      if (Application.OpenForms.OfType<products>().Count() == 1)
                          Application.OpenForms.OfType<products>().First().Close();
                      products pr = new products();
                      pr.Show();
                  
              }
              catch (Exception ex)
              {
                  //mb5 fur = new mb5();
                  //fur.Show();
                  //MessageBox.Show(ex.ToString());
              }
          }