PRB: Page Activate Event Does Not Set Focus to Different Page

ID: Q160061

The information in this article applies to:

Microsoft Visual FoxPro for Windows, versions 5.0, 6.0

SYMPTOMS

Using the Activate event of a Page in a PageFrame to set focus to a different page does not work.

WORKAROUND

To work around this problem, disable all pages except the one that is to have focus. For example, in the Deactivate event of the first page place the following code:


   This.Parent.Page1.Enabled = .F.
   This.Parent.Page2.Enabled = .F.
   This.Parent.Page3.Enabled = .F.
   This.Parent.Page4.SetFocus

This code disables all the other pages in the PageFrame and sets the focus to the remaining active page, Page 4 in this case. Since this code is in the Deactivate event of the prior page, no problems occur.

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article.

MORE INFORMATION

Using the NODEFAULT keyword does not produce the intended behavior. However, the addition of the NODEFAULT keyword to the Activate event causes the behavior of the examples below to differ.

Steps to Reproduce Behavior

Create a Form that contains a PageFrame object.

Change the PageCount property in the PageFrame to 4.

In the Activate of Page2, place the following code:


      This.Parent.ActivePage=4
      This.Parent.Page4.SetFocus
      NODEFAULT  && This line is optional.

Run the Form and use the Right Arrow key to move to Page2 of the PageFrame.

If the NODEFAULT keyword is in the Activate event, the first time you use the Right Arrow key to move to Page2, Page4 briefly gains focus, then focus returns to Page2. If you use the Right Arrow key to traverse pages, each time Page2 gets focus from the Right Arrow key, the focus is directed to Page4 correctly.

If NODEFAULT is removed from the above example, focus is never directed to Page4 after activating Page2. Moving from page to page behaves as if no code exists in the Activate event.

Additional query words: kbdsd VFoxWin

Keywords : kbVFp500 kbVFp600 FxprgGeneral
Version : WINDOWS:5.0,6.0
Platform : WINDOWS
Issue type :