C#打印

private void btnPreview_Click(object sender, EventArgs e)
{
PrintPreviewDialog printPreviewDialog = new PrintPreviewDialog();
//创建打印文档
PrintDocument printDocument1 = new PrintDocument();
//开始打印的时候
printDocument1.BeginPrint += new PrintEventHandler(printDocument1_BeginPrint);
//输送打印数据
printDocument1.PrintPage += new PrintPageEventHandler(printDocument1_PrintPage);
//打印结束的时候
printDocument1.EndPrint += new PrintEventHandler(printDocument1_EndPrint);
//设置纸张的大小,主要用于自定义纸张
System.Drawing.Printing.PageSettings pageSet = new System.Drawing.Printing.PageSettings();
pageSet.PaperSize = new PaperSize("First custom size", 1366, 768);
printDocument1.DefaultPageSettings = pageSet;
//
printPreviewDialog.Document = printDocument1;
printPreviewDialog.ShowDialog();
printPreviewDialog.Close();
}

private void printDocument1_EndPrint(object sender, PrintEventArgs e)
{
//throw new NotImplementedException();
//打印结束之后进行的操作
}

private void printDocument1_PrintPage(object sender, PrintPageEventArgs e)
{
//分页，分页数=选中节点数 HasMorePages 用来设置自动触发打印事件
//if (Count == 0)
//{
//    e.HasMorePages = false;
//}
//else
//{
//    e.HasMorePages = true;
//}

//当第二次加载的数据的时候，要把第一调用的画布，清除一遍,记得这是很重要的一句话哇！呜呜！
//e.Graphics.Clear(Color.White);
//绘制背景图像
//e.Graphics.DrawImage(panelPrint.BackgroundImage, 0, 0, 1366, 768);
}

private void printDocument1_BeginPrint(object sender, PrintEventArgs e)
{
//throw new NotImplementedException();
// 打印开始之前整理好数据源
}

private void btnPrint_Click(object sender, EventArgs e)
{
PageSetupDialog pageSetupDialog1 = new PageSetupDialog();
//创建打印文档
PrintDocument printDocument1 = new PrintDocument();
//开始打印的时候
printDocument1.BeginPrint += new PrintEventHandler(printDocument1_BeginPrint);
//输送打印数据
printDocument1.PrintPage += new PrintPageEventHandler(printDocument1_PrintPage);
//打印结束的时候
printDocument1.EndPrint += new PrintEventHandler(printDocument1_EndPrint);
//设置纸张的大小,主要用于自定义纸张
System.Drawing.Printing.PageSettings pageSet = new System.Drawing.Printing.PageSettings();
pageSet.PaperSize = new PaperSize("First custom size", 1024, 768);//此参数调整纸张大小
printDocument1.DefaultPageSettings = pageSet;
//将打印文档赋给打印组件
pageSetupDialog1.Document = printDocument1;
//纸张及页边距设置
pageSetupDialog1.PageSettings.Margins = new Margins(0, 0, 0, 0);
if (DialogResult.OK == pageSetupDialog1.ShowDialog())
{
printDocument1.Print();
}
printDocument1.Dispose();
//打印完毕后记得清空临时数据，释放内存,不管别的地方有没有清
}