Question

当我们在.NET 3.5中运行报表时，没有问题。当我们转向.NET 4.5并将Crystal升级到这些版本时：

我们不断收到此错误：

Load report failed.
at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened()
at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename, OpenReportMethod openMethod, Int16 parentJob)
at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename)
at AppSuite.WebApp.CrystalViewer.LoadReport(Boolean bRefresh)
at AppSuite.WebApp.CrystalViewer.Page_Load(Object sender, EventArgs e)
at System.Web.UI.Control.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

已达到系统管理员配置的最大报告处理作业限制。

at CrystalDecisions.ReportAppServer.ClientDoc.ReportClientDocumentClass.Open(Object& DocumentPath, Int32 Options)
at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.Open(Object& DocumentPath, Int32 Options)
at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened()

在代码中调用dispose方法，所以我不认为这会导致问题：

Private oReportDocument As New ReportDocument

Private Sub LoadReport(ByVal bRefresh As Boolean)

    'Get the report data
    Dim dtReport As DataTable = ReportHelper.GetReportData(Me.CacheKey, bRefresh)

    'If there is data to display bind it to the Crystal Viewer
    If dtReport.Rows.Count > 0 Then
        With oReportDocument
            .Load(ReportHelper.GetReportPath(Me.ReportId))
            .SetDataSource(dtReport)
            .PrintOptions.PaperSize = Common.Settings.CrystalPaperSize
        End With
        crvMain.ReportSource = oReportDocument
    Else
        'Hide the controls and display a message if there is no data
        crvMain.Visible = False
        btnPDF.Visible = False
        btnExcel.Visible = False
        lblNoResults.Visible = True
    End If

End Sub

Protected Sub Page_Unload(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Unload
    oReportDocument.Dispose()
End Sub

ASPX部分

<CR:CRYSTALREPORTVIEWER id="crvMain"  HasPrintButton="False" HasExportButton="False" 
    runat="server" ToolPanelView="None" BorderColor="Transparent" BorderStyle="None"
    Height="50px" Width="350px" HasRefreshButton="True" HasCrystalLogo="False" 
    HasToggleGroupTreeButton="False" meta:resourcekey="crvMainResource1"></CR:CRYSTALREPORTVIEWER>

更改注册表中的PrintJobLimit = -1并未解决问题。

我们是否需要购买水晶报告的完整版本，或者还有其他因素导致此问题？

Answer 1

我们遇到了类似的问题。在我们的例子中，我们在服务器中安装了两个版本的水晶报告。不知何故，安装在服务器中的较新的Crystal Report版本似乎不起作用。当我们使用report.Load()时，它会永远悬空。这就是我们解决的问题。

从bin文件夹中删除物理Crystal Report dll 部署）
在web.config中添加了dll版本重定向以使用旧版本

Web.config＆gt;运行部分。

<runtime>
  <assemblyBinding>
    <dependentAssembly>
     <assemblyIdentity name="CrystalDecisions.CrystalReports.Engine" publicKeyToken="692fbea5521e1304"/>
     <bindingRedirect oldVersion="13.0.2000.0" newVersion="10.5.3700.0"/>
    </dependentAssembly>

     <dependentAssembly>
      <assemblyIdentity name="CrystalDecisions.CrystalReports.Shared" publicKeyToken="692fbea5521e1304"/>
      <bindingRedirect oldVersion="13.0.2000.0" newVersion="10.5.3700.0"/>
    </dependentAssembly>

     <dependentAssembly>
       <assemblyIdentity name="CrystalDecisions.Shared" publicKeyToken="692fbea5521e1304"/>
      <bindingRedirect oldVersion="13.0.2000.0" newVersion="10.5.3700.0"/>
    </dependentAssembly>
  </assemblyBinding>
</runtime>

Answer 2

使用带有过滤器的 procmon.exe 来查找错误...在我的情况下我丢失了2天，错误是：访问被拒绝到某个文件夹：

https://stackoverflow.com/a/41942720/1536197

加载报告失败。在CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened（）

2 个答案: