set_hover_expand

Description:

[ Version ( since = "2.6" ) ]
public void set_hover_expand (bool expand)

Enables or disables the hover expansion mode of this.

Note:

Use [class@Gtk.ListView] or [class@Gtk.ColumnView] instead

Hover expansion makes rows expand or collapse if the pointer moves over them.

this	a `GtkTreeView`
expand	true to enable hover selection mode