我用listview做数据源，第一次调用F1时正常，第二次F1时MyPrintDocument_PrintPage自执行两次，第三次调用时MyPrintDocument_PrintPage自己走了三次才出一张纸
private void F1()
{
double xpage = 0, xz = 16, xy = lv.Items.Count;
xpage = xy / xz;
xpage += 0.999999999999999;
printPage.Tnumpage = (int)xpage;
if (printPage.Tnumpage > 1)
printPage.Ismore = true;
printPage.Cpage = 1;
printPage.Crow = 0;
printPage.Endpage = lv.Items.Count % 16;
this.printDocument1.DefaultPageSettings.PaperSize = new PaperSize("Custum", 854, 547);
this.printDocument1.PrintPage += new PrintPageEventHandler(this.MyPrintDocument_PrintPage);
this.printDocument1.PrinterSettings.PrinterName = serarr.Print;
this.printDocument1.Print();
lv.Items.Clear();
printPage.Ismore = false;
printPage.Cpage = 1;
printPage.Crow = 0;
this.printDocument1.Dispose();
}
private void MyPrintDocument_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
if(printPage.Ismore)
e.HasMorePages = true;
#region 画图开始
int top = 20;
int left = 50;
// 显示LOGO image.
Image imageFile = Image.FromFile("LOGO.jpg");
Graphics newGraphics = Graphics.FromImage(imageFile);
newGraphics.FillRectangle(new SolidBrush(Color.Black), 100, 50, 100, 100);
e.Graphics.DrawImage(imageFile, left + 25, top + 25, 196, 50);
e.Graphics.DrawString("XXXXX小票", new Font(new FontFamily("黑体"), 22, FontStyle.Bold), System.Drawing.Brushes.Black, left + 210, top + 32);
e.Graphics.DrawString("XXXXX点", new Font(new FontFamily("黑体"), 11), System.Drawing.Brushes.Black, left + 610, top + 50);
//信息的名称
e.Graphics.DrawLine(Pens.Black, left + 0, top + 70, left + 730, top + 70);
e.Graphics.DrawString("商品条码", new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 35, top + 75);
e.Graphics.DrawString("品名", new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 150, top + 75);
e.Graphics.DrawString("数量", new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 250, top + 75);
e.Graphics.DrawString("零售价", new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 350, top + 75);
e.Graphics.DrawString("折扣", new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 450, top + 75);
e.Graphics.DrawString("现价", new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 530, top + 75);
e.Graphics.DrawString("实收金额", new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 610, top + 75);
//内容
int pagerow = printPage.Cpage * 16;
if (printPage.Cpage == printPage.Tnumpage && printPage.Endpage > 0)
pagerow = pagerow - 16 + printPage.Endpage;
for (int i = top + 95; printPage.Crow < pagerow; printPage.Crow++, i += 20)
{
e.Graphics.DrawString(lv.Items[printPage.Crow].SubItems[1].Text, new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 35, i);
e.Graphics.DrawString(lv.Items[printPage.Crow].SubItems[3].Text, new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 150, i);
e.Graphics.DrawString(lv.Items[printPage.Crow].SubItems[4].Text, new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 250, i);
e.Graphics.DrawString(lv.Items[printPage.Crow].SubItems[5].Text, new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 350, i);
e.Graphics.DrawString(lv.Items[printPage.Crow].SubItems[10].Text, new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 450, i);
e.Graphics.DrawString(lv.Items[printPage.Crow].SubItems[7].Text, new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 530, i);
e.Graphics.DrawString(lv.Items[printPage.Crow].SubItems[8].Text, new Font(new FontFamily("宋体"), 10), System.Drawing.Brushes.Black, left + 610, i);
}
//页脚
e.Graphics.DrawString("合计件数：" + printarr.Num.ToString(), new Font(new FontFamily("宋体"), 8), System.Drawing.Brushes.Black, left + 230, top + 425);
e.Graphics.DrawString("应付：" + printarr.Yingfu.ToString() + " 优惠：" + printarr.Youhui.ToString() + " 实收：" + printarr.Shifu.ToString(), new Font(new FontFamily("宋体"), 8), System.Drawing.Brushes.Black, left + 310, top + 425);
e.Graphics.DrawString("商品一经销售，不退不换", new Font(new FontFamily("黑体"), 11, FontStyle.Bold), System.Drawing.Brushes.Black, left + 550, top + 420);
e.Graphics.DrawLine(Pens.Black, left + 0, top + 440, left + 730, top + 440);
e.Graphics.DrawString("交易时间：" + DateTime.Now.ToString(), new Font(new FontFamily("宋体"), 8), System.Drawing.Brushes.Black, left + 35, top + 442);
e.Graphics.DrawString("销售单号：" + printarr.Did, new Font(new FontFamily("宋体"), 8), System.Drawing.Brushes.Black, left + 370, top + 442);
e.Graphics.DrawString("第" + printPage.Cpage.ToString() + "/" + printPage.Tnumpage.ToString() + "页", new Font(new FontFamily("宋体"), 8), System.Drawing.Brushes.Black, left + 670, top + 442);
e.Graphics.DrawString("欢迎下次光临", new Font(new FontFamily("黑体"), 11, FontStyle.Bold), System.Drawing.Brushes.Black, left + 580, top + 460);
#endregion
if (printPage.Ismore && printPage.Cpage < printPage.Tnumpage)
printPage.Cpage++;
else
e.HasMorePages = false;
}
------解决思路----------------------
因为你只有+=没有-=，所以每次调用F1都会注册一个新的事件监听