set_row_separator_func

Description:

[ Version ( since = "2.6" ) ]
public void set_row_separator_func (owned TreeViewRowSeparatorFunc? func)

Sets the row separator function, which is used to determine whether a row should be drawn as a separator.

If the row separator function is null, no separators are drawn. This is the default value.

this	a TreeView
func	a TreeViewRowSeparatorFunc
data	user data to pass to `func`, or null
destroy	destroy notifier for `data`, or null