Microsoft KB Archive/814470

= FIX: The DataTable.Select method leaks memory from the index when you set some specific filter properties =

Article ID: 814470

Article Last Modified on 3/10/2006

-

APPLIES TO


 * Microsoft .NET Framework 1.1
 * Microsoft ADO.NET 1.1
 * Microsoft ADO.NET 1.0
 * Microsoft .NET Framework 1.0 Service Pack 2

-



SYMPTOMS
When you set some specific filter properties, the DataTable.Select method may leak memory.



RESOLUTION
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next .NET Framework service pack that contains this fix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix has the file attributes (or later) 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 tool in Control Panel.

.NET Framework version 1.1

   Date         Time   Version           Size  File name ---  30-Jun-2003  22:27  1.0.0.0       1,629,352  Ndp1.1-kb823679-x86.exe 27-Jun-2003 15:01  1.1.4322.918  1,294,336  System.data.dll 03-Jul-2003 03:20  5.3.17.17       709,920  Windowsserver2003-kb821415-x86-enu.exe .NET Framework version 1.0    Date         Time   Version            Size  File name --  19-Feb-2003  01:58  5.50.4134.600  2,930,064  Ndp10_qfem_q814470_en.exe 18-Feb-2003 15:01  1.0.3705.405              System.data.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
This fix has three separate installation files:
 * If you are using the .NET Framework 1.0 SP2, install Ndp10_qfem_q814470_en.exe.
 * If you are using the .NET Framework version 1.1 on a Microsoft Windows NT 4.0 or a Microsoft Windows 2000 system, install Ndp1.1-kb823679-x86.exe.
 * If you are using the .NET Framework version 1.1 on a Windows Server 2003 system, install Windowsserver2003-kb821415-x86-enu.exe.

The leak typically occurs when the DataTable.Select statement contains an IN clause. To work around this leak, you can use an OR clause instead of an IN clause: Use ==> DataRow[] rowArr = dt.Select(&quot;COL1 = 'VALUE1' AND (COL2 = 'VALUE2' OR COL2 = 'VALUE3')&quot;);

Instead of ==> DataRow[] rowArr = dt.Select(&quot;COL1= 'VALUE1' AND COL2 IN ('VALUE2', 'VALUE3')&quot;);

Keywords: kbbug kbfix kbqfe kbnetframe100presp3fix kbhotfixserver KB814470

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.