如何同时打印多个DevExpress报表文件？

要实现该功能，首先需使用XtraReport.PrintDialog和XtraReport.Print方法打印报表，然后还需处理报表的XtraReport.PrintingSystem的PrintingSystemBase.StartPrint事件。

关键代码：

private void button1_Click(object sender, EventArgs e) {

            XtraReport1 report1 = new XtraReport1();

            XtraReport[] reports = new XtraReport[] { new XtraReport2(), new XtraReport3() };

            ReportPrintTool pt1 = new ReportPrintTool(report1);

            pt1.PrintingSystem.StartPrint += new PrintDocumentEventHandler(PrintingSystem_StartPrint);

            foreach (XtraReport report in reports) {

                ReportPrintTool pts = new ReportPrintTool(report);

                pts.PrintingSystem.StartPrint += new PrintDocumentEventHandler(reportsStartPrintEventHandler);

            }

                //打印报表

            pt1.PrintDialog();

            foreach (XtraReport report in reports) {

                ReportPrintTool pts = new ReportPrintTool(report);

                pts.Print();

            }

        }

              //处理StartPrint事件

        void PrintingSystem_StartPrint(object sender, PrintDocumentEventArgs e) {

            prnSettings = e.PrintDocument.PrinterSettings;

        }

        private void reportsStartPrintEventHandler(object sender, PrintDocumentEventArgs e) {

            int pageCount = e.PrintDocument.PrinterSettings.ToPage;

            e.PrintDocument.PrinterSettings = prnSettings;

            //如果报表包含不同的页数，并且您需要打印所有页，请执行该步骤

            e.PrintDocument.PrinterSettings.ToPage = pageCount;

        }

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