如何将appSettings中的键值对放入SelectListItem的集合中?

 <add key="Domain1" value="GREAT"/>
<add key="Domain2" value="NA"/>
<add key="Domain3" value="NZDOM"/>

   IEnumerable<SelectListItem> domainItems = ConfigurationManager.AppSettings.AllKeys
                             .Where(key => key.StartsWith("Domain"))
                             .Select(x => new SelectListItem
                             {
                                 Value = "???", //Want the key not a collection
                                 Text = "???" //Want the value not a collection
                             });

我想问题出在Allkeys对象上了?所以选择者是按照我的想象行事的。