小编Cha*_*nan的帖子

我试图将2个水晶报告合并为单个pdf文件,我正在使用Itextsharp v5.1.1.但它说文件无法打开.它可能已损坏.没有构建错误.但pdf格式不正确,无法打开.这是我选择完成此任务的顺序.

1. 以pdf格式将Crystal报表导出到MemoryStream1
2. 将第二个报告导出到MemoryStream2中.
3. 合并内存流
4. 将Streams发送到Http输出响应为PDF.

以下是订单中每个步骤的代码.

   /// Get the Dataset from Stored Procedure for the CSSource Report
   dsCS = CSData.GetUSSourceXML(ds_input);
   /// Create the Report of type CSsource
   rptCS = ReportFactory.GetReport(typeof(CSsource));
   rptCS .SetDataSource(dsCS);
   /// Set the Parameters to the CS report
   rptCS .ParameterFields["Parameterid"].CurrentValues.Clear();
   rptCS .SetParameterValue("Parameterid", PID);
   //// Serialize the Object as PDF                    
   msCS=(MemoryStream)rptCS .ExportToStream(ExportFormatType.PortableDocFormat);

对于第2步

   /// Get the Dataset from Stored Procedure for the Aden Report
   dsAd = CSData.GetAdden(ds_input);
   /// Create the Report of type Aden
   rptAd = ReportFactory.GetReport(typeof(Aden));
   rptAd.SetDataSource(dsAd …