Can you set multiple wxGrid Colum Attributes?

[Petr Smilauer]

Hello,

> I switched to this:
... 
> wxColour default_cell_background_color =
> m_LogGrid->GetDefaultCellBackgroundColour();
> wxGridCellAttr *ColumnAttr = new wxGridCellAttr;// Remove all previous
> background colors, and set all of grid ReadOnly
> 
> ColumnAttr->SetBackgroundColour( default_cell_background_color );
> 
> ColumnAttr->SetReadOnly();
> 
> m_LogGrid->SetColAttr( LogGridColDate, ColumnAttr );
> 
> m_LogGrid->SetColAttr( LogGridColEventInHuman, ColumnAttr );
> 
> m_LogGrid->SetColAttr( LogGridColEvent, ColumnAttr );
> 
> which solved the ReadOnly problem, but did not solve
> the color problem.

Right, so you are doing both operations at the same time. 
What does your "color problem" mean? You had these three columns
paint with background colours different from the others, and now you
want to return them to the default one? 
I do not know why this does not work, it should. Isn't this just an 
window refresh problem (have you tried to hide and uncover the
grid area)? 
If not, I suggest you set breakpoint on one of these SetColAttr calls 
and see whether they are replaced (down there in the 
wxGridCellAttrProvider::SetColAttr  function). Perhaps a deeper 
understanding will make you change your current approach and 
write your own attribute provider class ;-)
Perhaps, it would be also good to see what wxGrid::GetDefaultCellBackgroundColour
returns in that context.

Best regards from 

Petr Smilauer
Ceske Budejovice