Checks if a row can be expanded.
This does not mean that the row is actually expanded, this can be checked with [method@Gtk.TreeListRow.get_expanded].
If a row is expandable never changes until the row is destroyed.
%TRUE if the row is expandable
See Implementation
Checks if a row can be expanded.
This does not mean that the row is actually expanded, this can be checked with [method@Gtk.TreeListRow.get_expanded].
If a row is expandable never changes until the row is destroyed.