With the n_columns and types parameters, you give an array of column
types for this model (which will be exposed to the parent model/view).
The modify function, func, will get called for each
data access; the goal of the modify function is to return the data which
should be displayed at the location specified using the parameters of the
modify function.
Requirements
Namespace: Gtk Assembly: gtk-sharp (in gtk-sharp.dll) Since: Gtk# 2.4