RDLC导出为PDF抛出对象引用未设置为对象错误 [英] RDLC Export to PDF throws Object reference not set to an object error
问题描述
嗨朋友们，
在报告查看器中，我尝试从特定日期获取前20 记录DB，记录被提取并能够将其导出到PDF，Word和Excel。
现在当我尝试获得前21 记录时相同的日期，提取记录，但当我尝试将其导出到 PDF 时，它会抛出对象引用未设置为对象的实例但它适用于word和excel。
我知道它的数据问题。
我想调试代码，还有其他吗在导出为pdf时解决破损问题？如何调试报表查看器导出代码？
这里是供您参考的日志
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Hi Friends,
In Report viewer, I try to get top 20 records for certain date from DB, records are fetched and able to export the same to PDF,Word, and Excel.
Now when I try to get top 21 records for the same date, fetches records but when I try to export the same to PDF it throws "Object reference not set to an instance of an object" but it works fine for word and excel.
I know its something about data issue.
I thought to debug the code, is there any other work around to find the breakage while exporting to pdf? How can I debug the report viewer export code?
here is the log for your reference
URL - >（http：// localhost：13034 / EMD.RIS / Reserved.ReportViewerWebControl.axd？Culture = 1033& CultureOverrides = False& UICulture = 127& UICultureOverrides = False& ReportStack = 1& ControlID = 0b9cd13c56b94cc6a8969464b4a96bd4& Mode = true& OpType = Export& FileName =& ContentDisposition = OnlyHtmlInline& Format = PDF），消息：对象引用未设置为一个对象的实例。 - 在Microsoft.ReportingServices.OnDemandReportRendering.OnDemandPageEvaluation.Add（字符串textboxName，对象textboxValue）在Microsoft.ReportingServices.OnDemandReportRendering.Report.AddToCurrentPage（字符串textboxDefinitionName，对象textboxInstanceOriginalValue）在Microsoft.ReportingServices.Rendering.HPBProcessing.HiddenPageItem.RegisterTextBoxes（RPLWriter rplWriter ，PageContext pageContext）在Microsoft.ReportingServices.RenB.DPBProcessing.PageItemContainer.AddToPage的Microsoft.ReportingServices.Rendering.HPBProcessing.PageItem.AddToPage（RPLWriter rplWriter，PageContext pageContext，Double pageLeft，Double pageTop，Double pageRight，Double pageBottom，RepeatState repeatState） （RPLWriter rplWriter，PageContext pageContext，Double pageLeft，Double pageTop，Double pageRight，Double pageBottom，RepeatState repeatState）at Microsoft.ReportingServices.Rendering.HPBProcessing.Tablix.RowInfo.AddToPageContent（scalableList`1 columnInfo，Int32& colsOnPa在www.ReportingServices.Rendering.HPBProcessing.Tablix.AddToPage（RPLWriter rplWriter，PageContext pageContext，Double pageLeft）中，ge，Boolean isLTR ，Microsoft pageTop，Double pageRight，Double pageBottom，RepeatState repeatState）在Microsoft的Microsoft.ReportingServices.Rendering.HPBProcessing.PageItemContainer.AddToPage（RPLWriter rplWriter，PageContext pageContext，Double pageLeft，Double pageTop，Double pageRight，Double pageBottom，RepeatState repeatState）。报告服务.Rendering.HPBProcessing.Report.NextPage（RPLWriter rplWriter，Int32页面，Int32 totalPages）在Microsoft.ReportingServices.Rendering.HPBProcessing.HPBProcessing.GetNextPage（RPLReport& rplReport）at Microsoft.ReportingServices.Rendering.ImageRenderer.PDFRenderer.Render（Report report，NameValueCollection deviceInfo，Hashtable renderProperties，CreateAndRegisterStream createAndRegisterStream）at Microsoft.ReportingServices.Rendering.ImageRenderer.RendererBase.Render（Report report，NameValueCollection reportServerParameters，NameValueCollection deviceInfo，NameValueCollection） clientCapabilities，Hashtable& renderProperties，CreateAndRegisterStream createAndRegisterStream）
URL-->(http://localhost:13034/EMD.RIS/Reserved.ReportViewerWebControl.axd?Culture=1033&CultureOverrides=False&UICulture=127&UICultureOverrides=False&ReportStack=1&ControlID=0b9cd13c56b94cc6a8969464b4a96bd4&Mode=true&OpType=Export&FileName=&ContentDisposition=OnlyHtmlInline&Format=PDF), Message: Object reference not set to an instance of an object. - at Microsoft.ReportingServices.OnDemandReportRendering.OnDemandPageEvaluation.Add(String textboxName, Object textboxValue) at Microsoft.ReportingServices.OnDemandReportRendering.Report.AddToCurrentPage(String textboxDefinitionName, Object textboxInstanceOriginalValue) at Microsoft.ReportingServices.Rendering.HPBProcessing.HiddenPageItem.RegisterTextBoxes(RPLWriter rplWriter, PageContext pageContext) at Microsoft.ReportingServices.Rendering.HPBProcessing.PageItem.AddToPage(RPLWriter rplWriter, PageContext pageContext, Double pageLeft, Double pageTop, Double pageRight, Double pageBottom, RepeatState repeatState) at Microsoft.ReportingServices.Rendering.HPBProcessing.PageItemContainer.AddToPage(RPLWriter rplWriter, PageContext pageContext, Double pageLeft, Double pageTop, Double pageRight, Double pageBottom, RepeatState repeatState) at Microsoft.ReportingServices.Rendering.HPBProcessing.Tablix.RowInfo.AddToPageContent(ScalableList`1 columnInfo, Int32& colsOnPage, Boolean isLTR, Boolean pinnedToParentCell, RPLWriter rplWriter, PageContext pageContext, Double pageLeft, Double pageTop, Double pageRight, Double pageBottom, RepeatState repeatState) at Microsoft.ReportingServices.Rendering.HPBProcessing.Tablix.AddToPage(RPLWriter rplWriter, PageContext pageContext, Double pageLeft, Double pageTop, Double pageRight, Double pageBottom, RepeatState repeatState) at Microsoft.ReportingServices.Rendering.HPBProcessing.PageItemContainer.AddToPage(RPLWriter rplWriter, PageContext pageContext, Double pageLeft, Double pageTop, Double pageRight, Double pageBottom, RepeatState repeatState) at Microsoft.ReportingServices.Rendering.HPBProcessing.Report.NextPage(RPLWriter rplWriter, Int32 page, Int32 totalPages) at Microsoft.ReportingServices.Rendering.HPBProcessing.HPBProcessing.GetNextPage(RPLReport& rplReport) at Microsoft.ReportingServices.Rendering.ImageRenderer.PDFRenderer.Render(Report report, NameValueCollection deviceInfo, Hashtable renderProperties, CreateAndRegisterStream createAndRegisterStream) at Microsoft.ReportingServices.Rendering.ImageRenderer.RendererBase.Render(Report report, NameValueCollection reportServerParameters, NameValueCollection deviceInfo, NameValueCollection clientCapabilities, Hashtable& renderProperties, CreateAndRegisterStream createAndRegisterStream)
任何帮助将不胜感激。
问候，
RK
Any helps will be greatly appreciated.
Regards,
RK
推荐答案
嗨伙计，
我得到了解决。
当我尝试获取前21记录时，第21条记录从边缘高度溢出。
现在我在报告中调整了高度它工作正常。
问候，
RK
Hi Folks,
I got it resolved.
When I try to fetch top 21 record, 21st record is overflow from the margin height.
Now I adjusted height in the report now it works fine.
Regards,
RK
请尝试以下链接可能b这些链接将对您有所帮助。
http://support.microsoft.com/kb/810098 [ ^ ]
http：// dbaspot。 com / sqlserver-datawarehouse / 375687-ssis-object-reference-not-set-instance-object-error.html [ ^ ]
Please try below links may be these links will help you.
http://support.microsoft.com/kb/810098[^]
http://dbaspot.com/sqlserver-datawarehouse/375687-ssis-object-reference-not-set-instance-object-error.html[^]
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