目前遇到一个棘手的问题，我的项目中会用到Reporting service 2008来生成报表，使用report viewer控件来预览并且同时使用API来生成PDF和excel格式的报表。
现在的情形是，有一个report有5个参数，当其中一个参数选择特定的一个值的时候，并且是选择PDF格式时会有异常，可以在report viewer控件中查看这个报表，但是选择PDF并导出时也是异常，但是excel就没有问题，server上的异常信息如下：
Exception information:
Exception type: SoapException
Exception message: An error occurred during rendering of the report. ---> Microsoft.ReportingServices.ReportProcessing.UnhandledReportRenderingException: An error occurred during rendering of the report. ---> System.Exception: For more information about this error navigate to the report server on the local server machine, or enable remote errors
Thread information:
Thread ID: 7
Thread account name: NT AUTHORITY\NETWORK SERVICE
Is impersonating: False
Stack trace: at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at NCS.RPLMS.Framework.Common.ReportExecutionService.Render(String Format, String DeviceInfo, String& Extension, String& MimeType, String& Encoding, Warning[]& Warnings, String[]& StreamIds) in D:\RPLMS\Migration\Pre-STGBase\SourceCode\Framework\Common\ReportExecutionService.cs:line 451
at NCS.RPLMS.Framework.Common.RPLMSUtil.GenerationReportDocument(String reportPath, String fileType, List`1 reportParams) in D:\RPLMS\Migration\Pre-STGBase\SourceCode\Framework\Common\RPLMSUtil.cs:line 432
at NCS.RPLMS.Framework.Common.RPLMSUtil.FINUploadReportIntoReportLibrary(String reportPath, String fileType, List`1 reportParams, String documentName, String noticeNumber, String noticeType, DateTime generationDate) in D:\RPLMS\Migration\Pre-STGBase\SourceCode\Framework\Common\RPLMSUtil.cs:line 480
at NCS.RPLMS.FIN.BusinessComponent.FinanceBC.GenerateReportIntoReportLibrary(String fileType, String noticeId, RPLMSReportParameter parameters, String reportName) in D:\RPLMS\Migration\Pre-STGBase\SourceCode\Module\FIN\BusinessComponent\FinanceBC.cs:line 1198
at NCS.RPLMS.FIN.BusinessFacade.GenerateReportBF.GenerateReport(String fileType, String noticeId, RPLMSReportParameter parameters, String reportName) in D:\RPLMS\Migration\Pre-STGBase\SourceCode\Module\FIN\BusinessFacade\GenerateReportBF.cs:line 36
at NCS.RPLMS.WebUI.Modules.FIN.ReportGenerate.Reports.DC.GenerateOrPreview(String fileType, String generateOrPreview, String reportName) in D:\RPLMS\Migration\Pre-STGBase\SourceCode\WebUI\Modules\FIN\ReportGenerate\Reports\DC.aspx.cs:line 106
at NCS.RPLMS.WebUI.Modules.FIN.ReportGenerate.Reports.DC.GenerateOrPreviewReports(Object sender) in D:\RPLMS\Migration\Pre-STGBase\SourceCode\WebUI\Modules\FIN\ReportGenerate\Reports\DC.aspx.cs:line 82
at NCS.RPLMS.WebUI.Modules.FIN.ReportGenerate.Reports.DC.ButtonGenerate_Click(Object sender, EventArgs e) in D:\RPLMS\Migration\Pre-STGBase\SourceCode\WebUI\Modules\FIN\ReportGenerate\Reports\DC.aspx.cs:line 58
at System.Web.UI.WebControls.LinkButton.OnClick(EventArgs e)
at System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument)
at System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
