TreeListRow.setExpanded
void setExpanded(bool expanded)Expands or collapses a row.
If a row is expanded, the model of calling the [gtk.types.TreeListModelCreateModelFunc] for the row's item will be inserted after this row. If a row is collapsed, those items will be removed from the model.
If the row is not expandable, this function does nothing.
Parameters
expanded | true if the row should be expanded |