Crystal Reports：数据库登录失败

Question

我正在尝试以 PDF 格式打印水晶报告，并且在我的本地计算机上它 \xe2\x80\x99s 工作正常。但是当我将应用程序发布到服务器时，它\xe2\x80\x99s 在“打印”按钮上给出以下错误。\n我正在使用 VS2012、SQl Server 2012、IIS 7.5 和 CR 版本 13.5\n注意：我正在使用集成安全性，因此我将用户名和密码留空。请帮忙。\n我的代码行：

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    string Constring1 = ConfigurationManager.ConnectionStrings["dbRMCConnectionString"].ConnectionString;\n    SqlConnection conn = new SqlConnection(Constring1);\n    conn.Open();\n\n    ReportDocument rpt = new ReportDocument();\n\n    rpt.Load(Server.MapPath("RMCChallan.rpt"));\n\n    ParameterFieldDefinitions crParameterFieldDefinations;\n    ParameterFieldDefinition crParameterFieldDefination;\n    ParameterValues crParameterValues = new ParameterValues();\n    ParameterDiscreteValue crParameterDiscreteValue = new ParameterDiscreteValue();\n    crParameterValues.Clear();\n\n    crParameterDiscreteValue.Value = lbl_Cno.Text;\n    crParameterFieldDefinations = rpt.DataDefinition.ParameterFields;\n    crParameterFieldDefination = crParameterFieldDefinations[0];\n    crParameterValues = crParameterFieldDefination.CurrentValues;\n\n    crParameterValues.Add(crParameterDiscreteValue);\n    crParameterFieldDefination.ApplyCurrentValues(crParameterValues);\n    rpt.SetDatabaseLogon("", "", "ADMIN-PC\\\\ADMIN", "dbRMC"); \n    rpt.ExportToHttpResponse(ExportFormatType.PortableDocFormat, Response, true, Guid.NewGuid().ToString());\n

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提前感谢您的帮助！:)

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堆栈跟踪：\n我正在尝试以 PDF 格式打印水晶报告，并且在我的本地计算机上\xe2\x80\x99s 工作正常。但是当我将应用程序发布到服务器时，它\xe2\x80\x99s 在“打印”按钮上给出以下错误。\n我正在使用 VS2012、SQl Server 2012、IIS 7.5 和 CR 版本 13.5\n注意：使用 Windows 身份验证..否分配给我的数据库的用户名和密码。\n\'/\' 应用程序中的服务器错误。

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数据库登录失败。

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Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. \n

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异常详细信息：System.Runtime.InteropServices.COMException: Database logon failed.

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来源错误：

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Line 178:        crParameterFieldDefination.ApplyCurrentValues(crParameterValues);\nLine 179:        rpt.SetDatabaseLogon("", "", "ADMIN-C\\\\ADMIN","MyDatabase"); \nLine 180:        rpt.ExportToHttpResponse(ExportFormatType.PortableDocFormat, Response, true, Guid.NewGuid().ToString());\nLine 181:\nLine 182:\n

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源文件：e:\\25jan14\\WebSite1\\RMC.aspx.cs Line: 180

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堆栈跟踪：

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[COMException (0x8004100f): Database logon failed.]\n  CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass.Export(ExportOptions pExportOptions, RequestContext pRequestContext) +0\n  CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext) +257\n\n[LogOnException: Database logon failed.]\n   CrystalDecisions.ReportAppServer.ConvertDotNetToErom.ThrowDotNetException(Exception e) +332\n   CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext) +310\n   CrystalDecisions.CrystalReports.Engine.FormatEngine.ExportToStream(ExportRequestContext reqContext) +654\n   CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToStream(ExportOptions options) +92\n   CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToHttpResponse(ExportOptions options, HttpResponse response, Boolean asAttachment, String attachmentName) +96\n   CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToHttpResponse(ExportFormatType formatType, HttpResponse response, Boolean asAttachment, String attachmentName) +119\n   RMC.Button5_Click(Object sender, EventArgs e) in e:\\25jan14\\WebSite1\\RMC.aspx.cs:180\n   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +9553594\n   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +103\n   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10\n   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13\n   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +35\n   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1724\n

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Answer 1

我们有同样的问题。最后我们需要安装 Microsoft SQL Server 2012 Native Client（可从https://www.microsoft.com/en-us/download/details.aspx?id=29065获取，单击安装说明并向中间滚动） 。

我们之所以能够得知这一点，是因为进程监视器在访问 HKCR/SNCL11 注册表项时显示 NOT FOUND 错误。