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FIX: The principal entity in an SQL application generates unnecessary updates when the application uses the Entity Framework in the .NET Framework 4Article ID: 2390624 - View products that this article applies to. On This PageSYMPTOMSYou have an application that uses the Entity Framework in the Microsoft .NET Framework 4 to access an SQL server. A principal entity has the property attribute ConCurrencyMode set as Fixed. In this scenario, when you run the application, unnecessary updates for the principal entity are generated unexpectedly. RESOLUTION 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 the problem described in this article. 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. 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 website: http://support.microsoft.com/contactus/?ws=support
(http://support.microsoft.com/contactus/?ws=support)
PrerequisitesThere are no prerequisites for installing this hotfix package.Restart requirementYou do not have to restart the computer after you apply this hotfix package.Hotfix replacement informationThis hotfix package does not replace a previously released hotfix package.File InformationThe English (United States) version of this hotfix package uses a Microsoft Windows Installer package to install the hotfix package. The dates and the times for these files are listed in Coordinated Universal Time (UTC) in the following table. When you view the file information, the date 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.For 32-bit versions of Windows XP, of Windows Server 2003, of Windows Vista, of Windows Server 2008, of Windows 7, and of Windows Server 2008 R2:Collapse this table
For 64-bit versions of Windows XP, of Windows Server 2003, of Windows Vista, of Windows Server 2008, of Windows 7, and of Windows Server 2008 R2:Collapse this table
For IA-64 versions of Windows XP, of Windows Server 2003, of Windows Vista, of Windows Server 2008, of Windows 7, and of Windows Server 2008 R2:Collapse this table
STATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. PropertiesArticle ID: 2390624 - Last Review: October 18, 2010 - Revision: 1.0
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