Selenium2Library系列 keywords 之 _SelectElementKeywords 之 unselect_from_list(self, locator, *items)

 1     def unselect_from_list(self, locator, *items):
 2         """Unselects given values from select list identified by locator.
 3 
 4         As a special case, giving empty list as `*items` will remove all
 5         selections.
 6 
 7         *items try to unselect by value AND by label.
 8 
 9         It‘s faster to use ‘by index/value/label‘ functions.
10 
11         Select list keywords work on both lists and combo boxes. Key attributes for
12         select lists are `id` and `name`. See `introduction` for details about
13         locating elements.
14         """
15         items_str = items and "option(s) ‘%s‘" % ", ".join(items) or "all options"
16         self._info("Unselecting %s from list ‘%s‘." % (items_str, locator))
17 
18         select = self._get_select_list(locator)
19         if not select.is_multiple:
20             raise RuntimeError("Keyword ‘Unselect from list‘ works only for multiselect lists.")
21 
22         if not items:
23             select.deselect_all()
24             return
25 
26         select, options = self._get_select_list_options(select)
27         for item in items:
28             select.deselect_by_value(item)
29             select.deselect_by_visible_text(item)