FIX: Error message when you view a SQL Server Reporting Services report in the ReportViewer control in Visual Studio 2008: "Object reference not set to an instance of an object"

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Article ID: 959595 - View products that this article applies to.
Bug: #50003629 (SQL Hotfix)
Notice
Microsoft distributes Microsoft SQL Server 2005 fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2005 fix release.
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SUMMARY

This article describes the following about this hotfix release:
  • The issues that are fixed by the hotfix package
  • The prerequisites for installing the hotfix package
  • Whether you must restart the computer after you install the hotfix package
  • Whether the hotfix package is replaced by any other hotfix package
  • Whether you must make any registry changes
  • The files that are contained in the hotfix package

SYMPTOMS

You have a SQL Server 2005 Reporting Services report or a Microsoft SQL Server 2008 Reporting Services report that contains many datasets. When you try to view the report in the ReportViewer control in Microsoft Visual Studio 2008, you receive the following error message:
An error occurred during rendering of the report.
Object reference not set to an instance of an object.

CAUSE

This issue occurs because the ReportViewer control is not thread safe. When the ReportViewer control is rendering a report, the System.IndexOutOfRangeException exception occurs, and a NULL object is referenced.

RESOLUTION

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must have Visual Studio 2008 Service Pack 1 installed.

Restart information

You do not have to restart the computer after you apply this hotfix.

Registry information

You do not have to change the registry.

Hotfix file information

This hotfix contains only those files that are required to correct the issues that this article lists. This hotfix may not contain of all the files that you must have to fully update a product to the latest build. The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
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File nameFile versionFile sizeDateTimePlatform
Microsoft.reportviewer.common.dll9.0.30729.2003,649,53612-Dec-200805:04x86
Microsoft.reportviewer.webforms.dll9.0.30729.2001,814,52812-Dec-200805:04x86
Reportviewer.exe9.0.30729.2003,238,73612-Dec-200805:12x86

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information about the naming schema for SQL Server updates, click the following article number to view the article in the Microsoft Knowledge Base:
822499 New naming schema for Microsoft SQL Server software update packages

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Properties

Article ID: 959595 - Last Review: October 8, 2011 - Revision: 2.0
APPLIES TO
  • Microsoft SQL Server 2005 Reporting Services
  • Microsoft Visual Studio 2008 Standard Edition
  • Microsoft Visual Studio 2008 Professional Edition
  • Microsoft Visual Studio Team System 2008 Database Edition
  • Microsoft Visual Studio Team System 2008 Architecture Edition
  • Microsoft Visual Studio Team System 2008 Development Edition
  • Microsoft Visual Studio Team System 2008 Test Edition
Keywords: 
kbautohotfix kbexpertiseadvanced kbfix kbsql2005rs kbsurveynew kbqfe KB959595

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