消除“打印文档的第1页”消息

Question

我有这个例程，可以在屏幕上的预览模式和标签打印机上打印标签。在每次打印操作开始之前，屏幕上会显示一个恼人的对话框，标签为“打印”，并在正文中显示“文档的第1页”，并带有“取消”按钮。我发现一个参考文献说我可以通过在打印之前使用如下语句来消除这种情况：

MyPowderlabel.PrintController = new System.Drawing.Printing.StandardPrintController();

这似乎没有效果。

以下是代码：

private void PrintLabel(object sender, EventArgs e)
{   // This routine starts up the print operation for the current label
try
{
   PrintDocument MyPowderlabel;
   MyPowderlabel = new PrintDocument();
   PaperSize PS = null; //Label dimensions for printer are in units of .01"
   PS = new PaperSize("Custom Size", 134, 118 );  // 3.4 cm wide x 3 cm high
   MyPowderlabel.DefaultPageSettings.PaperSize = PS;
   MyPowderlabel.DefaultPageSettings.Landscape = false;
   MyPowderlabel.PrintPage += new PrintPageEventHandler(MyPowderlabel_PrintPage);
   MyPowderlabel.PrinterSettings.PrinterName = printersList.Text;
   //  Display the label in the print preview box
   printPreviewControl1.Document = MyPowderlabel;
   printPreviewControl1.Document.PrintController = new System.Drawing.Printing.StandardPrintController();

   printPreviewControl1.Show();

   //The next statement is needed to insure that the label preview will be displayed for at least
   //a short time before it gets erased before the next barcode is processed.
   Application.DoEvents();
   if (!ckPrintPreview.Checked)
    {
      // Send the label to the selected (hard copy) printer 
      MyPowderlabel.PrintController = new System.Drawing.Printing.StandardPrintController();
      MyPowderlabel.Print();
    }
}
catch (Exception EX)
{
    MessageBox.Show("Error while trying to send label to printer\r\n" + EX.Message);
}
}