Crystal报表：无法连接不正确的登录参数 [英] Crystal Report: Unable to connect incorrect log on parameters

问题描述

当打印报告时，用户有时会出现以下错误：

 CrystalDecisions.CrystalReports.Engine.LogOnException：
文件C中的错误：\DOCUME〜1 \carolec\LOCALS〜1 \Temp\temp_b117cc2e-c184-4556-a493-e04e6d4126fb {388C2B55-114E-4087-A22D-9289902AFDEB} .rpt：
无法连接：登录参数不正确。 ---> System.Runtime.InteropServices.COMException（0x8004100F）：
文件C中的错误：\DOCUME〜1 \carolec\LOCALS〜1 \Temp\temp_b117cc2e-c184-4556-a493- e04e6d4126fb {388C2B55-114E-4087-A22D-9289902AFDEB} .rpt：
无法连接：登录参数不正确。 
àCrystalDecisions.ReportAppServer.Controllers.ReportSourceClass.GetLastPageNumber（RequestContext pRequestContext）
àCrystalDecisions.ReportSource.EromReportSourceBase.GetLastPageNumber（ReportPageRequestContext reqContext）
 --- Fin de la trace de la pile d'异常interne --- 
àCrystalDecisions.ReportAppServer.ConvertDotNetToErom.ThrowDotNetException（Exception e）
àCrystalDecisions.ReportSource.EromReportSourceBase.GetLastPageNumber（ReportPageRequestContext reqContext）
àCrystalDecisions.CrystalReports.Engine.FormatEngine。 PrinttoPrinter（Int32 nCopies，Boolean collat​​ed，Int32 startPageN，Int32 endPageN）
àCrystalDecisions.CrystalReports.Engine.ReportDocument.PrintToPrinter（Int32 nCopies，Boolean collat​​ed，Int32 startPageN，Int32 endPageN）

$ b

配置：C＃（2008），WinForm，Crystal Report 10，SQL Server 2008 Express（local）

解决方案

没有使用水晶报表一点，但通常一个错误沿着LogOn异常与安全无关，Crystal Report的错误可能有点随意。

它可能是与内存问题相关的错误。

这可能是特定报表，子报表可能尝试使用存储在报表中的凭据登录，而不是通过代码传递到凭据;您需要循环浏览所有子报表，而不只是设置登录信息的主报表。

我记得在使用解决方法安装动态标志（从另一个数据库表中的二进制字段中提取的报告），除了有一个轻微的错误，它拉出每行数据的标志数据;在返回一定数量的行后，它会导致类似的错误。

When printing a report, the user sometime have the following error:

CrystalDecisions.CrystalReports.Engine.LogOnException:  
Error in File C:\DOCUME~1\carolec\LOCALS~1\Temp\temp_b117cc2e-c184-4556-a493-e04e6d4126fb {388C2B55-114E-4087-A22D-9289902AFDEB}.rpt:  
Unable to connect: incorrect log on parameters. ---> System.Runtime.InteropServices.COMException (0x8004100F): 
Error in File C:\DOCUME~1\carolec\LOCALS~1\Temp\temp_b117cc2e-c184-4556-a493-e04e6d4126fb {388C2B55-114E-4087-A22D-9289902AFDEB}.rpt:
Unable to connect: incorrect log on parameters.
   à CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass.GetLastPageNumber(RequestContext pRequestContext)
   à CrystalDecisions.ReportSource.EromReportSourceBase.GetLastPageNumber(ReportPageRequestContext reqContext)
   --- Fin de la trace de la pile d'exception interne ---
   à CrystalDecisions.ReportAppServer.ConvertDotNetToErom.ThrowDotNetException(Exception e)
   à CrystalDecisions.ReportSource.EromReportSourceBase.GetLastPageNumber(ReportPageRequestContext reqContext)
   à CrystalDecisions.CrystalReports.Engine.FormatEngine.PrintToPrinter(Int32 nCopies, Boolean collated, Int32 startPageN, Int32 endPageN)
   à CrystalDecisions.CrystalReports.Engine.ReportDocument.PrintToPrinter(Int32 nCopies, Boolean collated, Int32 startPageN, Int32 endPageN)

Any ideas on a solution?

Configuration: C# (2008), WinForm, Crystal Report 10, SQL Server 2008 Express (local)

解决方案

Haven't used Crystal Reports for a bit, but generally an error along the lines of "LogOn Exception" may actually have nothing to do with security at all, Crystal Report errors can be a bit random.

Its possible it may be an error related to memory issues.

Or...

It might be report specific, a sub-report maybe trying to logon using credentials stored within the report, rather than the credentials you've passed into it via the code; You need to loop through all sub-reports rather than just the main report setting the login information.

I remember having this particular error when I used a workaround to install a dynamic logo for a report (that got pulled from a binary field within another database table) except there was a slight error in which it pulled the logo data for each row of data; After a certain amounts of rows returned it died resulting in a similar error.

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