json.net

问题 Im having some trouble to understand how to use JSON.net to read a json file. The file is looking like this: "version": { "files": [ { "url": "http://www.url.com/", "name": "someName" }, { "name": "someOtherName" "url": "http://www.url.com/" "clientreq": true }, .... I really do not have much idea how i can read this file .. What i need to do is to read the lines and download the file via the "url".. I know how to download files and so on, but i dont know how i can use JSON.net to read the

问题 UPDATE I figured it out. Check out my answer below. I'm trying to create a JSON string representing a row from a database table to return in an HTTP response. It seems like Json.NET would be a good tool to utilize. However, I'm not sure how to do build the JSON string while I'm reading from the database. The problem is marked by the obnoxious comments /******** ********/ // connect to DB theSqlConnection.Open(); // open the connection SqlDataReader reader = sqlCommand.ExecuteReader(); if

问题 Hi i am getting json result by calling an external api. HttpClient client = new HttpClient(); client.BaseAddress = new Uri(url); client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); HttpResponseMessage response = client.GetAsync(url).Result; if (response.IsSuccessStatusCode) { var result = response.Content.ReadAsStringAsync().Result; var s = Newtonsoft.Json.JsonConvert.DeserializeObject(result); return "Success"; } else { return "Fail"; } the

问题 I am deserializing JSON into a data table using the below statement in VB.NET. Dim _dt As DataTable = JsonConvert.DeserializeObject(Of DataTable)(myRecords) myRecords is a JSON string. It is working fine, but myRecords has some number properties like {"PhoneNo":"123456789", "ID":"46541"} and after deserialization those properties are converted to a column with data type as string. How can I deserialize them into a number? myRecords is getting dynamically populated, so I can't hard code. 回答1:

问题 I have the following piece of code: JObject my_obj = JsonConvert.DeserializeObject<JObject>(ReceivedJson); ParseJson(my_obj); //method to store all the nested "keys" and the "id" values public void ParseJson(JObject obj) { foreach (KeyValuePair<string, JToken> sub_obj in (JObject)obj["Soccer"]) { Console.WriteLine(sub_obj.Key); } } //this does not work well as I cant access all the nested keys :/ I am receiving a json in the following format. It could be nested on several levels and I want to

问题 public class SpecialObject { public string ID; [JsonIgnore] public List<SpecialObject> SpecialObjectCollection = new List<SpecialObject>(); [JsonIgnore] public List<string> tempObjectIDs = new List<string>(); [JsonProperty] public List<string> SpecialObjectIDs { get { return SpecialObjectCollection.Select(x => x.ID).ToList(); } set { tempObjectIDs = value; } } public SpecialObject() { } public SpecialObject(string _id) { ID = _id; } } static void Main(string[] args) { SpecialObject parent =

问题 I have string property in my class_ for example [DataMember] [JsonProperty(PropertyName = "email")] [StringLength(40, ErrorMessage = "The Mobile value cannot exceed 40 characters. ")] public string Email { get; set; } By some reason during Convert.Deserialize process I need to have empty string in this property instead on null in case this value is not setup in JSON object. How to do it ? 回答1: You could use the DefaultValue attribute. Decorate it as [DataMember] [JsonProperty(PropertyName =

问题 I have string property in my class_ for example [DataMember] [JsonProperty(PropertyName = "email")] [StringLength(40, ErrorMessage = "The Mobile value cannot exceed 40 characters. ")] public string Email { get; set; } By some reason during Convert.Deserialize process I need to have empty string in this property instead on null in case this value is not setup in JSON object. How to do it ? 回答1: You could use the DefaultValue attribute. Decorate it as [DataMember] [JsonProperty(PropertyName =

问题 I am trying to deserialize a json string received as a response from the service. The client is Windows Phone 7, in C#. I am using Json .NET - James Newton-King deserializor to directly convert the Json string to objects. But sometimes the Json string contains some comments information with double quotes (") in them and the deserializer fails and throws an error. Looks like this is an invalid Json string according to Jsonlint. { "Name": "A1", "Description": "description of the "object" A1" }

问题 I am trying to deserialize a json string received as a response from the service. The client is Windows Phone 7, in C#. I am using Json .NET - James Newton-King deserializor to directly convert the Json string to objects. But sometimes the Json string contains some comments information with double quotes (") in them and the deserializer fails and throws an error. Looks like this is an invalid Json string according to Jsonlint. { "Name": "A1", "Description": "description of the "object" A1" }