C# linq、json

LINQ

GroupBy

//按单位机型技术等级分组
var StuLstGroup = StuLst.GroupBy(n => string.Format("{0},{1}", n.AIR_TYPE, n.TECHNOLOGYID)).ToList();

json serialization

JavaScriptSerializer Serializer = new JavaScriptSerializer();
List<IDictionary<string, string>> formList = Serializer.Deserialize<List<IDictionary<string, string>>>(HttpUtility.UrlDecode(formDataList));

JSON serialization, the sequence may comprise an array of strings

JObject res = JObject.Parse(retStr);
JArray data = JArray.Parse(res["data"].ToString());