如何在c＃的下一页上打印

Question

我想打印到C＃中的NextPageusing printdocument。我正在使用的代码继续将页数增加到无限循环。

我使用的代码如下：

PaperSize pze = new PaperSize("Custom Paper size", 800, 150);

public void Print()
{
     printDocument1.DefaultPageSettings.PaperSize = pze;
     printDocument1.Print();
}
int YHeight = 0;
private void printDocument1_PrintPage(object sender,     System.Drawing.Printing.PrintPageEventArgs e)
{
        panel1_Paint(sender, new PaintEventArgs(e.Graphics, this.ClientRectangle));
        int heightOfPage = 150;
        float pageHeight = e.MarginBounds.Height;
        while (heightOfPage + 100 < pageHeight && YHeight < this.SaveBeforePrint.Count)
        {

            YHeight += 1;
            heightOfPage += 20;
        }

        if (YHeight < this.SaveBeforePrint.Count)
        {
            e.HasMorePages = true;
            return;
        }
        else
        {
            e.HasMorePages = false;
        }
}

Answer 1

您可以更改PrintPage方法，如下所示..

这里countInRow是每页要显示的行中条形码的数量..

int countInRow = 3;  // number of barcode in a row on every page.

private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{        
   panel1_Paint(sender, new PaintEventArgs(e.Graphics, this.ClientRectangle));

   int locCount = SaveBeforePrint.Count;
   for (int i = 0; i < countInRow && i < locCount; i++)
   {
      SaveBeforePrint.RemoveAt(0);        //remove the top element always
   }
   e.HasMorePages = (SaveBeforePrint.Count > 0);
}

你还需要在“panel1_Paint”方法中再做一次更改，更改for循环条件

private void panel1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
  .
  .
  .
    for (int serial = 0; serial < SaveBeforePrint.Count && serial < countInRow; serial++)
    {
     // you code goes here.. 
    }
  .
  .
  .
}