如何以纵向打印前 2 页,以横向打印后 2 页?
我尝试将页面设置设置为横向,但不起作用。有人有解决问题的办法吗? 请帮助我。
using CrystalDecisions.CrystalReports.Engine;
using System.Drawing.Printing;
public class CustomReportPrinter
{
private int currentPage = 1;
public void Print()
{
ReportDocument reportDocument = new ReportDocument();
reportDocument.Load("path_to_your_report_file.rpt"); // Replace with the actual path to your Crystal Report file
// Set up the PrintDocument object for custom printing
PrintDocument printDocument = new PrintDocument();
printDocument.PrintPage += new PrintPageEventHandler(PrintPageHandler);
// Set the Crystal Report's PrintOptions to use the custom PrintDocument
reportDocument.PrintOptions.PrinterName = printDocument.PrinterSettings.PrinterName;
// Start printing
reportDocument.PrintToPrinter(printDocument.PrinterSettings.Copies, false, 0, 0);
}
private void PrintPageHandler(object sender, PrintPageEventArgs e)
{
// Your content for the first 2 pages (currentPage 1 and 2) in portrait orientation
if (currentPage <= 2)
{
// Add your code here to draw the content for the first 2 pages in portrait mode
// Example:
// e.Graphics.DrawString("Page " + currentPage, new Font("Arial", 12), Brushes.Black, new PointF(100, 100));
// ...
// Move to the next page
currentPage++;
// Check if there are more pages to print
e.HasMorePages = currentPage <= 2;
}
else
{
// Your content for the next 2 pages (currentPage 3 and 4) in landscape orientation
// Add your code here to draw the content for the next 2 pages in landscape mode
// Example:
// e.Graphics.DrawString("Page " + currentPage, new Font("Arial", 12), Brushes.Black, new PointF(100, 100));
// ...
// Move to the next page
currentPage++;
// Check if there are more pages to print
e.HasMorePages = false;
}
}
}
在此代码中,我们使用 Crystal Reports ReportDocument 类来加载报表文件。然后,我们设置一个用于打印的自定义 PrintDocument 对象。 PrintPageHandler 方法处理每个页面的内容绘制,类似于前面没有 Crystal Reports 的示例。在使用 Crystal Reports 组件之前,请确保您已在项目中安装并引用了适当的 Crystal Reports 运行时。另外,在 Print 方法中将“path_to_your_report_file.rpt”替换为 Crystal Report 文件的实际路径。这样,您可以将 Crystal Reports 与 C# 集成,并根据报表打印的需要处理页面方向。