Re: Support for column/row grouping

[Markus Elfring <Markus Elfring web de>]

> A Gtk::TreeModel can contain just about any copyable type
> via the Gtk::TreeModel::Column<>  template. You'd have to try. You can
> use the cell_data_func() to set the "inconsistent" property.
>
> I don't personally believe that the Gtk::CellRenderToggle's
> "inconsistent" property will be used often enough to justify introducing
> a new 3-value type and a Gtk::TreeView::append_column() convenience
> method that uses it.

I find that this part of your answer belongs more to the discussion around 
topics like "Mapping of model attributes with unknown values to a corresponding 
widget display", doesn't it?   ;-)


Different issue:
How do you think about improvements for the grouping of row/column headers?

Regards,
Markus