Microsoft KB Archive/215390

Knowledge Base

BUG: Grid Control Does Not Change Focus Until the Second Focus Event

Article ID: 215390

Article Last Modified on 8/19/2005

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APPLIES TO

• Microsoft Windows CE Toolkit for Visual Basic 6.0
• Microsoft Office Keyboard

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This article was previously published under Q215390

SYMPTOMS

In an eVB/VBCE project, when you change the focus from the Grid control to any of the following controls, the focus might not change until you click the other control twice:

• CommandButton
• ListView
• PictureBox
• TabStrip
• TreeView

This behavior occurs both in emulation and on the remote device. The expected behavior is that the focus changes after the first click to the new control.

RESOLUTION

This behavior tends to occur when other screen-related events are involved, such as when you use the message box in the code example below. If other screen-related events do not occur, the focus events should occur as expected.

STATUS

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

MORE INFORMATION

This section shows how to create a sample project that demonstrates this behavior.

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 the following controls to Form1:
   • CommandButton
   • Grid
   • ListView
   • PictureBox
   • TabStrip
   • TreeView

   
   

3. Copy the following code to the Form1 code window:

   Option Explicit
   
   Private Sub Command1_GotFocus()
       MsgBox "Command"
   End Sub
   
   Private Sub GridCtrl1_GotFocus()
       MsgBox "Grid"
   End Sub
   
   Private Sub ListViewCtrl1_GotFocus()
       MsgBox "ListView"
   End Sub
   
   Private Sub PictureBox1_GotFocus()
       MsgBox "PictureBox"
   End Sub
   
   Private Sub TabStrip1_GotFocus()
       MsgBox "TabStrip"
   End Sub
   
   Private Sub TreeViewCtl1_GotFocus()
       MsgBox "TreeView"
   End Sub
   
                       

4. Press the F5 key to run the project. Set the focus by clicking the grid control. A message box appears to confirm that the GotFocus event executed. Click OK to close the message box. Click on another control.
   
   BUG: The GotFocus event for that control does not execute until you click the control for the second time. The expected behavior is that the GotFocus event executes on the first click.NOTE: If the code above is modified to avoid other screen activities, the focus events should occur as expected. For instance, add a Listbox to the form and change the instances of "MsgBox" to "List1.AddItem" (without the quotes). The focus changes should occur as expected and be correctly reflected in the Listbox.

REFERENCES

Microsoft Windows CE Toolkit for Visual Basic 6.0

Additional query words: VBCE WINCE vbce6 eVB

Keywords: kbbug kblistview kbtoolkit kbtreeview kbtabctrl KB215390

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