DOCUMENT:Q248070 16-NOV-2001 [vbwin] TITLE :BUG: VBCE: Clicking ComboBox May Trigger Command Click Event PRODUCT :Microsoft Visual Basic for Windows PROD/VER::2.0,2.11,3.0 OPER/SYS: KEYWORDS:kbToolkit kbVBp600bug kbOSWinCEsearch kbGrpDSVB ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows CE Toolkit for Visual Basic 6.0 - Microsoft eMbedded Visual Basic, version 3.0, used with: - Microsoft Windows CE versions 2.0, 2.11 for the Handheld PC - Microsoft Windows CE version 2.11 for the Palm-size PC ------------------------------------------------------------------------------- SYMPTOMS ======== When selecting an item from a combo box, the Click event for a command button may fire. This happens on command buttons having shortcut keys and is related to the relative TabIndex values between the command button and the combo box. RESOLUTION ========== To prevent the problem remove the shortcut keys from the command buttons. Modifying the TabIndex property of the combo box and ensuring that it does not have the highest TabIndex value on the form works in some cases without removing the shortcut keys. STATUS ====== Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. MORE INFORMATION ================ Steps to Reproduce Behavior --------------------------- 1. Create a new Windows CE project in either Visual Basic or eMbedded Visual Basic. Form1 is created by default. 2. Add a ComboBox to Form1. 3. Add a Command Button to Form1. Set its Caption to "&Save". 4. Paste the following code into Form1: Private Sub Command1_Click() MsgBox "In Command1_Click" End Sub Private Sub Form_Load() Combo1.AddItem "Test" End Sub 5. Run the application. 6. Drop-down the combo box and click Test. The Click event for the command button will fire. Additional query words: wce vbce vbce6 evb ====================================================================== Keywords : kbToolkit kbVBp600bug kbOSWinCEsearch kbGrpDSVB Technology : kbVBSearch kbAudDeveloper kbZNotKeyword2 kbVBeMbSearch kbWinCETKVBSearch kbWinCESearch Version : :2.0,2.11,3.0 Issue type : kbbug Solution Type : kbpending ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.