.net中除去IList中的多余项

 IList<ActionInfo> tempList = new List<ActionInfo>();
  IList<ActionInfo> tempActionList = new List<ActionInfo>();

   var iactionlist = (from li in tempList
                                select li).Distinct();
             foreach (var d in iactionlist)
             {
                 tempActionList.Add(d);
             } 

tempList  为首次取出的值，tempActionList  为过滤后存入的值