以编程方式设置Crystal Report的自定义纸张宽度和高度

using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Shared;

ReportDocument reportDocument = new ReportDocument();
reportDocument.Load("path_to_report_file.rpt");

PageSetup pageSetup = reportDocument.PrintOptions.PageSetup;

pageSetup.PaperSize = PaperSize.Custom;
pageSetup.PaperWidth = desired_width_in_inches * 2540; // 将宽度转换为twips单位（1英寸=2540twips）
pageSetup.PaperHeight = desired_height_in_inches * 2540; // 将高度转换为twips单位

pageSetup.Orientation = CrystalDecisions.Shared.PaperOrientation.Landscape; // 设置为横向打印

pageSetup.LeftMargin = desired_left_margin_in_inches * 2540;
pageSetup.RightMargin = desired_right_margin_in_inches * 2540;
pageSetup.TopMargin = desired_top_margin_in_inches * 2540;
pageSetup.BottomMargin = desired_bottom_margin_in_inches * 2540;

reportDocument.SaveAs("path_to_modified_report_file.rpt");