getNColumns
⚠️ Deprecated ⚠️
This is deprecated since version 4.10.
Use class@Gtk.ListView or class@Gtk.ColumnView instead
---Queries the number of columns in the given @tree_view.
Return
The number of columns in the @tree_view
This is deprecated since version 4.10.
Use class@Gtk.ListView or class@Gtk.ColumnView instead
---Queries the number of columns in the given @tree_view.
The number of columns in the @tree_view