[wxPython-users] GridBagSizer error with a hidden item

[Robin Dunn]

Lee Merrill wrote:
> Hi everyone,
>  
>     If you set up in xrced the following:
>  
> wxPanel
>     wxGridBagSizer
>         wxStaticText: 0,0
>         wxStaticText: 0,1 and hidden
>  
>     this generates an error when you press F5 to test it: 
> "PyAssertionError: C++ assertion "uiIndex < m_nCount" failed in 
> ..\..\include\wx/dynarray.h(812)". This is with Python 2.4 and wxPython 
> 2.6.3.2 on Windows XP. I googled for this error message and it seems it 
> sometimes indicates a bug, but I couldn't find a description of this 
> problem.
>  
> Putting the hidden item in a box sizer fixes the problem.

It looks like it only happens if the last item in the sizer is hidden, 
so another workaround would be to add a empty spacer or something after 
that item.

-- 
Robin Dunn
Software Craftsman
http://wxPython.org  Java give you jitters?  Relax with wxPython!