分组后,循环子集的方法

var rightScopes = db.RightScope.ToList();            var rightScopeType = rightScopes.OrderBy(rs => rs.ClaimValue).GroupBy(rs => rs.ClaimType);            //一级目录.得到ClaimType分组.每一个分组.增加一级.容易查看.            foreach (var item in rightScopeType)            {                tree_children.name = item.Key;                //二级目录..得到一个分组.显示出来.                foreach (RightScope rs in item)                {                                       tree_children_last.type = rs.ClaimType;                    tree_children_last.value = rs.ClaimValue;                 }                           }

 分组后,直接Tolist()取得子集的方法

var rightScopeType = rightScopes.OrderBy(rs => rs.ClaimValue).GroupBy(rs => rs.ClaimType);            foreach (var item in rightScopeType)            {                               tree_children.name = item.Key;                RightScope rs =item.Tolist();                                       }