Sets the maximum number of columns to use.
This number must be at least 1.
If max_columns is smaller than the minimum set via gtk.grid_view.GridView.setMinColumns, that value is used instead.
The maximum number of columns
Sets the maximum number of columns to use.
This number must be at least 1.
If max_columns is smaller than the minimum set via gtk.grid_view.GridView.setMinColumns, that value is used instead.