Gets the logical sort_column_id that the model sorts on when this column is selected for sorting.
See gtk.tree_view_column.TreeViewColumn.setSortColumnId.
the current sort_column_id for this column, or -1 if this column can’t be used for sorting
Deprecated: Use GtkColumnView instead
Gets the logical sort_column_id that the model sorts on when this column is selected for sorting.
See gtk.tree_view_column.TreeViewColumn.setSortColumnId.