打印到本地打印机时出错

时间：2010-08-13 15:45:45

标签： winforms printing

我的用户希望能够直接打印我在VS 2010中设计的报告，而不是通过预览报告的过程。我在VS 2010中使用报表设计器设计了报表，该报表设计器创建了一个.rdlc文件。我使用以下MSDN演练作为示例，对于我的代码：

http://msdn.microsoft.com/en-us/library/ms252091(v=VS.80).aspx

在我的情况下，我不是在XML文件中的数据，而是从SQL Server数据库中检索数据，并且我有一个.xsd文件，等等。我将参数传递给报告。我将传递的数据集和ReportParameters分配给报表似乎没问题。这是代码的一部分，最后一行是发生错误的行：

string deviceInfo =
"<DeviceInfo>" +
" <OutputFormat>EMF</OutputFormat>" +
" <PageWidth>8.5in</PageWidth>" +
" <PageHeight>11in</PageHeight>" +
" <MarginTop>0.4in</MarginTop>" +
" <MarginLeft>0.5in</MarginLeft>" +
" <MarginRight>0.5in</MarginRight>" +
" <MarginBottom>0.4in</MarginBottom>" +
"</DeviceInfo>";
Warning[] warnings;
m_streams = new List<Stream>();
report.Render("Image", deviceInfo, CreateStream, out warnings);

这是我收到的错误消息：

Microsoft.Reporting.WinForms.LocalProcessingException was unhandled
  Message=An error occurred during local report processing.
  Source=Microsoft.ReportViewer.WinForms
  StackTrace:
       at Microsoft.Reporting.WinForms.LocalReport.InternalRender(String format, Boolean allowInternalRenderers, String deviceInfo, PageCountMode pageCountMode, CreateAndRegisterStream createStreamCallback, Warning[]& warnings)
       at Microsoft.Reporting.WinForms.LocalReport.Render(String format, String deviceInfo, PageCountMode pageCountMode, CreateStreamCallback createStream, Warning[]& warnings)
       at Microsoft.Reporting.WinForms.LocalReport.Render(String format, String deviceInfo, CreateStreamCallback createStream, Warning[]& warnings)
       at SimpleWinForms.PrintRfsDirectly.Export(LocalReport report) in C:\Users\Rodf\Documents\Visual Studio 2010\Projects\SimpleWinForms\SimpleWinForms\PrintRfsDirectly.cs:line 62
       at SimpleWinForms.PrintRfsDirectly..ctor(spRequestForServicesReport2DataTable RfsTable, ReportParameter AmciName, ReportParameter ClientNumberParameter, ReportParameter CaseNumberParameter, ReportParameter ClientNameParameter, String RdlcFileName) in C:\Users\Rodf\Documents\Visual Studio 2010\Projects\SimpleWinForms\SimpleWinForms\PrintRfsDirectly.cs:line 35
       at SimpleWinForms.ShowReport.ShowReport_Load(Object sender, EventArgs e) in C:\Users\Rodf\Documents\Visual Studio 2010\Projects\SimpleWinForms\SimpleWinForms\ShowReport.cs:line 54
       at System.Windows.Forms.Form.OnLoad(EventArgs e)
       at System.Windows.Forms.Form.OnCreateControl()
       at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
       at System.Windows.Forms.Control.CreateControl()
       at System.Windows.Forms.Control.WmShowWindow(Message& m)
       at System.Windows.Forms.Control.WndProc(Message& m)
       at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
       at System.Windows.Forms.Form.WmShowWindow(Message& m)
       at System.Windows.Forms.Form.WndProc(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
       at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       at System.Windows.Forms.SafeNativeMethods.ShowWindow(HandleRef hWnd, Int32 nCmdShow)
       at System.Windows.Forms.Control.SetVisibleCore(Boolean value)
       at System.Windows.Forms.Form.SetVisibleCore(Boolean value)
       at System.Windows.Forms.Control.Show()
       at SimpleWinForms.Form1.btnPrintRFS_Click(Object sender, EventArgs e) in C:\Users\Rodf\Documents\Visual Studio 2010\Projects\SimpleWinForms\SimpleWinForms\Form1.cs:line 55
       at System.Windows.Forms.Control.OnClick(EventArgs e)
       at System.Windows.Forms.Button.OnClick(EventArgs e)
       at System.Windows.Forms.Button.PerformClick()
       at System.Windows.Forms.Form.ProcessDialogKey(Keys keyData)
       at System.Windows.Forms.Control.ProcessDialogKey(Keys keyData)
       at System.Windows.Forms.Control.PreProcessMessage(Message& msg)
       at System.Windows.Forms.Control.PreProcessControlMessageInternal(Control target, Message& msg)
       at System.Windows.Forms.Application.ThreadContext.PreTranslateMessage(MSG& msg)
       at System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FPreTranslateMessage(MSG& msg)
       at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.Run(Form mainForm)
       at SimpleWinForms.Program.Main() in c:\users\rodf\documents\visual studio 2010\Projects\SimpleWinForms\SimpleWinForms\Program.cs:line 18
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: Microsoft.ReportingServices.ReportProcessing.ProcessingAbortedException
       Message=An error has occurred during report processing.
       Source=Microsoft.ReportViewer.Common
       ExceptionLevelHelpLink=http://go.microsoft.com/fwlink/?LinkId=20476&EvtSrc=Microsoft.ReportingServices.Diagnostics.Utilities.ErrorStrings&EvtID=rsProcessingAborted&ProdName=Microsoft%20SQL%20Server%20Reporting%20Services&ProdVer=1.0
       SkipTopLevelMessage=false
       StackTrace:
            at Microsoft.ReportingServices.OnDemandProcessing.OnDemandProcessingContext.AbortHelper.ThrowAbortException(String reportUniqueName)
            at Microsoft.ReportingServices.OnDemandProcessing.OnDemandProcessingContext.CheckAndThrowIfAborted()
            at Microsoft.ReportingServices.OnDemandProcessing.RetrievalManager.FetchData(Boolean mergeTran)
            at Microsoft.ReportingServices.OnDemandProcessing.RetrievalManager.PrefetchData(ReportInstance reportInstance, ParameterInfoCollection parameters, Boolean mergeTran)
            at Microsoft.ReportingServices.OnDemandProcessing.Merge.FetchData(ReportInstance reportInstance, Boolean mergeTransaction)
            at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.ProcessOdpReport(Report report, OnDemandMetadata odpMetadataFromSnapshot, ProcessingContext pc, Boolean snapshotProcessing, Boolean reprocessSnapshot, Boolean processUserSortFilterEvent, Boolean processWithCachedData, ErrorContext errorContext, DateTime executionTime, IChunkFactory cacheDataChunkFactory, StoreServerParameters storeServerParameters, GlobalIDOwnerCollection globalIDOwnerCollection, SortFilterEventInfoMap oldUserSortInformation, EventInformation newUserSortInformation, String oldUserSortEventSourceUniqueName, ExecutionLogContext executionLogContext, OnDemandProcessingContext& odpContext)
            at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RenderReport(IRenderingExtension newRenderer, DateTime executionTimeStamp, ProcessingContext pc, RenderingContext rc, IChunkFactory cacheDataChunkFactory, IChunkFactory yukonCompiledDefinition, Boolean& dataCached)
            at Microsoft.Reporting.LocalService.CreateSnapshotAndRender(CatalogItemContextBase itemContext, ReportProcessing repProc, IRenderingExtension renderer, ProcessingContext pc, RenderingContext rc, SubreportCallbackHandler subreportHandler, ParameterInfoCollection parameters, DatasourceCredentialsCollection credentials)
            at Microsoft.Reporting.LocalService.Render(CatalogItemContextBase itemContext, Boolean allowInternalRenderers, ParameterInfoCollection reportParameters, IEnumerable dataSources, DatasourceCredentialsCollection credentials, CreateAndRegisterStream createStreamCallback, ReportRuntimeSetup runtimeSetup)
            at Microsoft.Reporting.WinForms.LocalReport.InternalRender(String format, Boolean allowInternalRenderers, String deviceInfo, PageCountMode pageCountMode, CreateAndRegisterStream createStreamCallback, Warning[]& warnings)
       InnerException: Microsoft.ReportingServices.ReportProcessing.ReportProcessingException
            Message=RfsDataSet
            Source=Microsoft.ReportViewer.Common
            ExceptionLevelHelpLink=http://go.microsoft.com/fwlink/?LinkId=20476&EvtSrc=Microsoft.ReportingServices.Diagnostics.Utilities.ErrorStrings&EvtID=rsErrorCreatingDataReader&ProdName=Microsoft%20SQL%20Server%20Reporting%20Services&ProdVer=1.0
            SkipTopLevelMessage=false
            StackTrace:
                 at Microsoft.ReportingServices.OnDemandProcessing.RuntimeDataSet.RunDataSetQuery()
                 at Microsoft.ReportingServices.OnDemandProcessing.TablixProcessing.RuntimeOnDemandDataSet.Process()
                 at Microsoft.ReportingServices.OnDemandProcessing.RuntimeDataSet.ProcessConcurrent(Object threadSet)
            InnerException:

1 个答案:

答案 0 :(得分：2)

我也遇到了这个错误，并最终将其跟踪到运行render方法时在CreateStream回调中创建文件流的权限问题。在创建文件流时，它会引发访问异常。只需使用唯一的临时名称替换静态文件名即可解决问题：

    // Routine to provide to the report renderer, in order to save an image for each page of the report.
    private Stream CreateStream(string name, string fileNameExtension, Encoding encoding,
      string mimeType, bool willSeek)
    {            
        Stream stream = new FileStream(Path.GetTempFileName(), FileMode.Create);            
        m_streams.Add(stream);
        return stream;
    }
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