ExporttoPDF（）失败，数据库登录失败

在示例控制台应用程序中，我将XML文件读入数据集，将其提供给Crystal Reports，并使用ExportToPDF（）方法将报告导出为PDF。我的应用程序失败，出现“数据库登录失败”错误。在MSDN和SCN发现的类似问题似乎不起作用。ExporttoPDF（）失败，数据库登录失败

我碰到下面的错误和堆栈跟踪我的日志：

ConsolePDF Exception: Database logon failed. 
ConsolePDF Inner Exception: System.Runtime.InteropServices.COMException (0x8004100F): Database logon failed. 
    at CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass.Export(ExportOptions pExportOptions, RequestContext pRequestContext) 
    at CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext) 
ConsolePDF Stack Trace: at CrystalDecisions.ReportAppServer.ConvertDotNetToErom.ThrowDotNetException(Exception e) 
    at CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext) 
    at CrystalDecisions.CrystalReports.Engine.FormatEngine.ExportToStream(ExportRequestContext reqContext) 
    at CrystalDecisions.CrystalReports.Engine.FormatEngine.Export(ExportRequestContext reqContext) 
    at CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToDisk(ExportFormatType formatType, String fileName) 
    at ConsolePDF.Program.ConsolePDF() in D:\user\ConsolePDF2\ConsolePDF\Program.cs:line 519

在节目中，我读一个XML文件，加载到数据集并提供给水晶的报表（.rpt ）文件。在report.ExportToDisk（...）处引发异常：

try 
{ 
    DataSet ds = new DataSet(); 
    ds.ReadXml(fileName, XmlReadMode.ReadSchema); 
    string pdfFileName = filename + ".pdf"; 
    ReportDocument report = new ReportDocument(); 
    String rptLoc = reportLocation.Replace(@"\/", @"\"); 
    report.Load(rptLoc); 

    ds.WriteXml(@"C:\Temp\ReportPDFSOXML.xml", XmlWriteMode.WriteSchema); 

    string fullName = fileDir + pdfFileName; 
    report.SetDatabaseLogon("user","password","server","database"); 

    // Next line is 519 - where exception was raised 
    report.ExportToDisk(ExportFormatType.PortableDocFormat, fullName); 
    report.Close(); 
    report.Dispose();        
} 
catch (Exception ex) 
{ 
    logger.Info(ex.Message, "ConsolePDF Exception"); 
    if (ex.InnerException != null) 
    { 
     logger.Info(ex.InnerException.ToString(), "ConsolePDF Inner Exception"); 
    } 
    if (ex.StackTrace.ToString() != null) 
    { 
     logger.Info(ex.StackTrace.ToString(), "ConsolePDF Stack Trace"); 
    } 
    connPool.Dispose(); 
    sessionConn.Dispose(); 
    Environment.Exit(0); 
}

如何才能摆脱此错误？

来源

2016-08-24 SJaka

但是你从来没有在这段代码中使用你的数据集！尝试添加这样的行：

//Your Line 
    ds.WriteXml(@"C:\Temp\ReportPDFSOXML.xml", XmlWriteMode.WriteSchema); 
    //Set the report datasource, using your ds 
    report.SetDataSource(ds);

然后，你检查了你的登录/数据库/服务器信息两次？问题可能就在那里！

Regards，

来源

2016-08-25 13:41:05 Furtiro

ExporttoPDF（）失败，数据库登录失败

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