跨多个页面打印表单
本文关键字:打印 表单 | 更新日期: 2023-09-27 18:02:55
我有3个打印方法:printa, printb和printc(每个打印一个表单)。所有这3个表格都需要在多个页面上打印。我如何打印3页?
我知道,我们需要使用事件处理程序,并使用currentpage和.hasmorepages,但我不知道如何使用它
只需跟踪页码。在BeginPrint事件中将其设置为0,并在每次调用PrintPage时增加它。这样的:
int pageNumber;
private void printDocument1_BeginPrint(object sender, System.Drawing.Printing.PrintEventArgs e) {
pageNumber = 0;
}
private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e) {
++pageNumber;
e.HasMorePages = true;
switch (pageNumber) {
case 1: printa(e); break;
case 2: printb(e); break;
case 3: printc(e); e.HasMorePages = false; break;
}
}
是的,它可能相当模糊。下面是我打印Reporting Services报告的方法(下面代码中的MetaFile图像数组)。
public void Print()
{
if (emfImage == null || emfImage.Count <= 0)
{
throw new ArgumentException("An image is required to print.");
}
printer = printer.Trim();
if (string.IsNullOrEmpty(printer))
{
throw new ArgumentException("A printer is required.");
}
printingPage = 0;
PrintDocument pd = new PrintDocument();
pd.PrinterSettings.PrinterName = printer;
pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);
pd.Print();
}
private void pd_PrintPage(object sender, PrintPageEventArgs e)
{
Metafile page = emfImage[printingPage];
e.Graphics.DrawImage(page, 0, 0, page.Width, page.Height);
e.HasMorePages = ++printingPage < emfImage.Count;
}