FIX: The Leave event for a TextBox control may not be raised after you install the .NET Framework 1.0 Service Pack 3 (886795)

SYMPTOMS

After you install the Microsoft .NET Framework 1.0 Service Pack 3 (SP3), the Leave event for the TextBox control may not be raised when the focus is moved away from the TextBox control. Additionally, if focus is then moved back to the TextBox control and then you press the TAB key to move out of the TextBox control, the Leave event for the TextBox control is raised correctly.

This problem typically only occurs when the TextBox control first receives focus. When subsequent focus changes occur in the TextBox control, the Leave event is raised for every focus change.

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 .NET Framework 1.0 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.

Prerequisites

The .NET Framework 1.0 Service Pack 3

Restart Requirement

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

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

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 tool in Control Panel.

   Date         Time   Version        Size       File name
   ----------------------------------------------------------------------
   12-Oct-2004  22:13  1.0.3705.6026  2,002,944  System.windows.forms.dll

MORE INFORMATION

For more information about the Leave event, visit the following Microsoft Developer Network (MSDN) Web site:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemwindowsformscontrolclassleavetopic.asp

For additional information, 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