Microsoft KB Archive/824481

= FIX: DataView control does not reflect the changes that are made to a computed column =

Article ID: 824481

Article Last Modified on 10/5/2005

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APPLIES TO


 * Microsoft .NET Framework 1.1

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SYMPTOMS
When you bind a DataView control to a parent table, and the parent table has a computed column that refers to a column of child table, you may see that the DataView data does not reflect the changes that are made to the child table value where the expression column of the parent table is built.

For example, if a new row is added to the child table, the child table fires an event to the parent table to notify the parent. However, because of a bug, the parent table does not listen to the events of the child table. Additionally, if you traverse over the expression column of the parent table, and you re-evaluate the expression column but the assignment for the expression column is different, you do not fire an event but you do see a change in value.

The datagrid does not recognize any changes to underlying tables or dataviews. Therefore, the datagrid does not update the grid.



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

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone 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 usual 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 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. Date               Version    Size              File name -- 07-15-2003   1.1.4322.924   1,294,336 bytes    System.Data.dll Note Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section of this article.

Keywords: kbbug kbfix kbdataview KB824481

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