[Gtk-sharp-list] Empy cells in Liststore

[Elmar Haneke]

Hi,

I do have an TreeView having some integer numeric columns (using
CellRendererText).

In the Model-ListStore for these columns typof(int) is specified.

I noticed that it is not possible to leave the column blank, there is
always "0" shown instead.

Any Ideas how to change that?

Elmar