PRB: Visible Property of Container Ignored by ActiveX Controls

• Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b, 5.0, 5.0a

SYMPTOMS

In Visual FoxPro 3.x and 5.x, when a parent container control has a child ActiveX control added to it, changing the Visible property of the parent container control to .F. does not hide the child ActiveX control.

RESOLUTION

The workaround is to explicitly set the Visible property of the ActiveX control to (.F.).

Replace the sample code in the Click event of the command button with the following code:

   IF Thisform.command1.caption = "Hide Container"
      Thisform.container1.visible = .F.
      Thisform.container1.olecontrol1.visible = .F.
      Thisform.command1.caption = "Show Container"
   ELSE
      Thisform.container1.visible = .T.
      Thisform.container1.olecontrol1.visible = .T.
      Thisform.command1.caption = "Hide Container"
   ENDIF 

STATUS

Microsoft is researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

This only happens if the child control is an ActiveX control. Using the FoxPro base controls works as expected.

Steps to Reproduce Behavior

1. Create a form.



2. Add a container control to the form, and name it container1.



3. Add a command button to the form and change the following property:

   
         Caption = "Hide Container" 




4. In the Click event of the command button, place the following code:

   
         IF Thisform.command1.caption = "Hide Container"
            Thisform.container1.visible = .F.
            Thisform.command1.caption = "Show Container"
         ELSE
            Thisform.container1.visible = .T.
            Thisform.command1.caption = "Hide Container"
         ENDIF 




5. Right-click the container and select Edit.



6. Add a text box control and an ActiveX control (a Calendar control) as child objects to the container. Name the ActiveX control olecontrol1 and the text box control text1.



7. Save and run the form.
   
   Click the Hide Container button and the container and the text box disappear. However, the child ActiveX control within the container remains visible.

Additional query words:

Keywords : kbnokeyword
Version : WINDOWS:3.0,3.0b,5.0,5.0a
Platform : WINDOWS
Issue type : kbprb