如何在传递多个参数的同时生成PDF格式的Crystal Report？

我想以pdf格式生成水晶报告。 我通过传递一个参数做了同样的事情。 但这次我要传递10个参数。 我遵循了与传递一个参数所做的相同的事情。

但现在我收到错误消息“无法评估表达式，因为代码已优化或本机框架位于调用堆栈之上。” 任何人请提出建议。 提前致谢。 请根据生成PDF格式的Crystal Report修改我的代码。

在按钮单击事件中，我编写了以下代码。

try { CrystalDecisions.CrystalReports.Engine.ReportDocument rpt = new CrystalDecisions.CrystalReports.Engine.ReportDocument(); string conn = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString(); string[] str = conn.Split(';'); string server = str[0].Substring(str[0].IndexOf(" = ") + 3); string database = str[1].Substring(str[1].IndexOf(" = ") + 3); string userid = str[2].Substring(str[2].IndexOf(" = ") + 3); string password = "Welc0me"; rpt.Load(Server.MapPath("~/Reports/Marketing/JobOrdersList.rpt")); for (int i = 0; i < rpt.DataSourceConnections.Count; i++) rpt.DataSourceConnections[i].SetConnection(server, database, userid, password); rpt.SetParameterValue(0, DateTime.ParseExact(dcfromdate.DateString.ToString(), DateFormat, CultureInfo.InvariantCulture, DateTimeStyles.None)); rpt.SetParameterValue(1, DateTime.ParseExact(dcTodate.DateString.ToString(), DateFormat, CultureInfo.InvariantCulture, DateTimeStyles.None)); rpt.SetParameterValue(2, ddlCompany.SelectedValue); rpt.SetParameterValue(3, ddlUnit.SelectedValue); rpt.SetParameterValue(4, ddlCustomer.SelectedValue); rpt.SetParameterValue(5, ddlProduct.SelectedValue); rpt.SetParameterValue(6, ddlScope.SelectedValue); rpt.SetParameterValue(7, ddlStatus.SelectedValue); rpt.SetParameterValue(8, ddlGroupBy.SelectedValue); rpt.SetParameterValue(9, (ChkPrint.Checked == true ? "True" : "False")); rpt.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, HttpContext.Current.Response, true, "JobOrderList Report"); } catch (Exception ex) { return ex.Message.ToString(); } 

Answer 1

 //To generate PDF dynamically using System; using System.Windows.Forms; using CrystalDecisions.CrystalReports.Engine; using CrystalDecisions.Shared; namespace WindowsApplication1 { public partial class Form1 : Form { ReportDocument cryRpt; public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { cryRpt = new ReportDocument(); cryRpt.Load(PUT CRYSTAL REPORT PATH HERE\\CrystalReport1.rpt"); crystalReportViewer1.ReportSource = cryRpt; crystalReportViewer1.Refresh(); } private void button2_Click(object sender, EventArgs e) { try { ExportOptions CrExportOptions ; DiskFileDestinationOptions CrDiskFileDestinationOptions = new DiskFileDestinationOptions(); PdfRtfWordFormatOptions CrFormatTypeOptions = new PdfRtfWordFormatOptions(); CrDiskFileDestinationOptions.DiskFileName = "c:\\csharp.net-informations.pdf"; CrExportOptions = cryRpt.ExportOptions; { CrExportOptions.ExportDestinationType = ExportDestinationType.DiskFile; CrExportOptions.ExportFormatType = ExportFormatType.PortableDocFormat; CrExportOptions.DestinationOptions = CrDiskFileDestinationOptions; CrExportOptions.FormatOptions = CrFormatTypeOptions; } cryRpt.Export(); } catch (Exception ex) { MessageBox.Show(ex.ToString()); } } } }