BUG: ComboBox Events Do Not Fire When Contained in a Frame

• Windows CE Toolkit for Visual Basic 5.0, version 1.0

SYMPTOMS

The ComboBox Click and Change events do not fire when the control is contained in a Frame control.

RESOLUTION

1. Ensure that the ComboBox is not contained inside the Frame, but on top of it.

2. In the Form Load event, set the ZOrder of the ComboBox as follows:

         Combo1.ZOrder 0
   

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this bug and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Steps to Reproduce Behavior

1. Start a new Windows CE Project in Visual Basic 5.0. Form1 is created by default.

2. Add a Frame (Frame1) to Form1.

3. Draw a ComboBox (Combo1) inside of Frame1.

4. Add the following code to Form1:

         Option Explicit
         Dim x
   

         Private Sub Form_Load()
           For x = 1 to 8
             Combo1.AddItem "Item" & x
           Next
         End Sub
      
         Private Sub Combo1_Click()
           MsgBox "Text: " & Combo1.Text
         End Sub
      
         Private Sub Combo1_Change()
           MsgBox "Text: " & Combo1.Text
         End Sub
   
   

5. Press the F5 key to run the project.

6. Click on the drop-down arrow of the ComboBox and then click on any item. Note that neither the Click event nor the Change event will fire.

Keywords          : vb5all vbce WinCE
Version           : WINDOWS:1.0
Platform          : WINDOWS
Issue type        : kbbug
Solution Type     : kbpending