Linq排序并声称新对象列表示例

 

// 这个表是决定排序顺序的表            List<KeyValuePair<int, string>> sortedList = new List<KeyValuePair<int, string>>();            // 这个表是将要被排序的表，这张表的关联是: 本表的Key=上表的Value            List<KeyValuePair<string, string>> desList = new List<KeyValuePair<string, string>>();            sortedList.Add(new KeyValuePair<int, string>(5, "Item5"));            sortedList.Add(new KeyValuePair<int, string>(10, "Item1"));            sortedList.Add(new KeyValuePair<int, string>(2, "Item2"));            sortedList.Add(new KeyValuePair<int, string>(7, "Item3"));            sortedList.Add(new KeyValuePair<int, string>(4, "Item4"));                        //            desList.Add(new KeyValuePair<string, string>("Item1", "Content1"));            desList.Add(new KeyValuePair<string, string>("Item3", "Content3"));            desList.Add(new KeyValuePair<string, string>("Item4", "Content4"));            desList.Add(new KeyValuePair<string, string>("Item2", "Content2"));            desList.Add(new KeyValuePair<string, string>("Item5", "Content5"));            var query = ((from k in sortedList                          join p in desList on k.Value equals p.Key                          select new { k.Key, p.Value, internalValue = p.Key })                          .OrderBy(k => k.Key) // 排序                          .Select(n=> new KeyValuePair<string ,string>(n.internalValue,n.Value))).ToList(); //再次生成跟原来类型一样的LIST            for (int i = 0; i < query.Count; i++)            {                Console.WriteLine(string.Format("Key={0},Value={1}", query[i].Key, query[i].Value));            }