We Keep Coding

How to bind this json and read specific key value

I have below json which I would like to read it in a list. below are the classes and model defined and the code by which I am trying to read. I am getting null value on binding. I am not sure how should i achieve this. So for example if I have multiple rules, I would like to read each one based on the condition passed. Please see my last sample code for better understanding.
Sample Json:
{"TableStorageRule": { "Rules": [ {
"Name": "filterRule1",
"DataFilter":
{
"DataSetType": "Settings1"
},
"TableSettings":
{
"AzureTable": {
"Account": "account1",
"Table": "table1",
"Key": "key1"
},
"SchemaBaseUri": "https://test.web.core.windows.net/"
}
},
{
"Name": "filterRule2",
"DataFilter":
{
"DataSetType": "Settings2"
},
"TableSettings":
{
"AzureTable": {
"Account": "account2",
"Table": "table2",
"Key": "key2"
},
"SchemaBaseUri": "https://test2.web.core.windows.net/"
}
}
] }}
Model and Code:
public class TableStoreSettings
{
public class AzureTableSettings
{
public string Account { get; set; }
public string Key { get; set; }
public string Table { get; set; }
}
public AzureTableSettings AzureTable { get; set; }
public Uri SchemaBaseUri { get; set; }
}
public class TableStorageRule
{
public string Name { get; set; }
public TwisterDataFilter DataFilter { get; set; }
public TableStoreSettings TableSettings { get; set; }
}
public class TableStorageConfiguration
{
public IEnumerable<TableStorageRule> Rules { get; set; } = new List<TableStorageRule>();
}
code by which I am trying to read:
var builder = new ConfigurationBuilder()
.SetBasePath(Path.Combine(Root))
.AddJsonFile("appsettings.json", optional: false);
var config = builder.Build();
var tableStorageOutput = new TableStorageRule();
config.GetSection("TableStorageRule").Bind(tableStorageOutput);
var nameOfFilter = tableStorageOutput.Name;
if (tableStorageOutput.Name == "filterRule1")
{
var accountname = tableStorageOutput.TableSettings.AzureTable.Account;
}
on above I only get first filtername1 , i dont get other filternames and so on...though on GetSection() i see all the values in quick watch.

this is correct models from your JSON file :
public class DataFilter {
public string DataSetType { get; set; }
}
public class AzureTable {
public string Account { get; set; }
public string Table { get; set; }
public string Key { get; set; }
}
public class TableSettings {
public AzureTable AzureTable { get; set; }
public string SchemaBaseUri { get; set; }
}
public class Rule {
public string Name { get; set; }
public DataFilter DataFilter { get; set; }
public TableSettings TableSettings { get; set; }
}
public class TableStorageRule {
public List<Rule> Rules { get; set; }
}
public class Root {
public TableStorageRule TableStorageRule { get; set; }
}
for test you can read your JSON file and get values (maybe change models solve your problem in your code):
string json = File.ReadAllText(jsonFilePath);
Root myDeserializedClass = JsonConvert.DeserializeObject<Root>(json);

Deserialized JSON String to C# Object gives the error "Cannot access static class in non-static context" when the object's methods are called

I'm trying to GET a JSON REST-api request, deserialize it using the Newtonsoft.Json package for .NET and access methods within the newly created object, but I keep getting an error that won't let me run my C# code in Visual Studio 2015.
For the following JSON string,
{
"pagination":
{
"per_page": 1,
"items": 28,
"page": 1,
"urls":
{
"last": "https://...",
"next": "https://..."
},
"pages": 28
},
"results":
[{
"style": ["House"],
"thumb": "https://...",
"format": ["File", "AAC", "Album"],
"country": "Unknown",
"barcode": ["id886037928"],
"uri": "/Porter-Robinson-Worlds/master/721049",
"community": {"have": 932, "want": 720},
"label": ["Astralwerks", "Sample Sized, LLC", "Astralwerks"],
"catno": "none",
"year": "2014",
"genre": ["Electronic"],
"title": "Porter Robinson - Worlds",
"resource_url": "https://...",
"type": "master",
"id": 721049
}]
}
I created the following C# object class:
public class Discogs
{
public class pagination
{
public int per_page { get; set; }
public int items { get; set; }
public int page { get; set; }
public class urls
{
public string last { get; set; }
public string next { get; set; }
}
public int pages { get; set; }
public class data
{
public string[] style { get; set; }
public string thumb { get; set; }
public string[] format { get; set; }
public string country { get; set; }
public string[] barcode { get; set; }
public string uri { get; set; }
public class community
{
public string have { get; set; }
public string want { get; set; }
}
public string[] label { get; set; }
public string catno { get; set; }
public string year { get; set; }
public string[] genre { get; set; }
public string title { get; set; }
public string resource_url { get; set; }
public string type { get; set; }
public string id { get; set; }
}
public class results
{
public data Results { get; set; }
}
}
}
In a private async void class, I've successfully fetched the GET request and stored it in the string, jsonstring. Now I try to run this code:
Discogs myUser = new Discogs();
myUser = JsonConvert.DeserializeObject<Discogs>(jsonstring);
int yr = myUser.pagination.data.year;
...but my project gets an error, An object reference is required for the non-static field, method, or property 'Discogs.pagination.data.year', cannot access non-static property 'year' in static context.
This does not make sense to me because I have no static classes or methods. I've searched for a solution but all similar problems seem to be able to access deserialized objects without any such error. Any help on accessing the methods in my Discogs object would be greatly appreciated.

The problem is that you are trying to use the class Pagination without instantiating the class. In order to use a non-static class (Pagination, Data, Community) you must first instantiate them like below
Pagination pag = new Pagination();
Your structure here is pretty odd. Normally classes would be in separate files or at least not nested such as you have here. You may want to rethink the way you've designed this program.

You are trying to get value from "myUser.pagination...", but in your example "pagination" is a class name not a property inside "Discogs" class, same as "data" inside "pagination" class
code with nested classes:
public class Discogs
{
public class Pagination
{
public int per_page { get; set; }
public int items { get; set; }
public int page { get; set; }
public class Urls
{
public string last { get; set; }
public string next { get; set; }
}
public Urls urls {get;set;}
public int pages { get; set; }
public class Data
{
public string[] style { get; set; }
public string thumb { get; set; }
public string[] format { get; set; }
public string country { get; set; }
public string[] barcode { get; set; }
public string uri { get; set; }
public class Community
{
public string have { get; set; }
public string want { get; set; }
}
public Community community { get; set; }
public string[] label { get; set; }
public string catno { get; set; }
public string year { get; set; }
public string[] genre { get; set; }
public string title { get; set; }
public string resource_url { get; set; }
public string type { get; set; }
public string id { get; set; }
}
public class Results
{
public Data Results { get; set; }
}
public Results result {get;set;}
}
public Pagination pagination {get;set}
}
code with i think a bit easy to understand:
public class Urls
{
public string last { get; set; }
public string next { get; set; }
}
public class Community
{
public string have { get; set; }
public string want { get; set; }
}
public class Data
{
public string[] style { get; set; }
public string thumb { get; set; }
public string[] format { get; set; }
public string country { get; set; }
public string[] barcode { get; set; }
public string uri { get; set; }
public string[] label { get; set; }
public string catno { get; set; }
public string year { get; set; }
public string[] genre { get; set; }
public string title { get; set; }
public string resource_url { get; set; }
public string type { get; set; }
public string id { get; set; }
public Community community { get; set; }
}
public class Results
{
public Data Results { get; set; }
}
public class Pagination
{
public int per_page { get; set; }
public int items { get; set; }
public int page { get; set; }
public int pages { get; set; }
public Urls urls {get;set;}
public Results result {get;set;}
}
public class Discogs
{
public Pagination pagination {get;set}
}

Generate C# object from Json string and parse Json string to generated object

I am trying to generate C# class using the JSON string from here http://json2csharp.com/ this works fine. But I can't parse the JSON to the object generated by the website.
Here is the JSON string
{
"searchParameters":{
"key":"**********",
"system":"urn:oid:.8"
},
"message":" found one Person matching your search criteria.",
"_links":{
"self":{
"href":"https://integration.rest.api.test.com/v1/person?key=123456&system=12.4.34.."
}
},
"_embedded":{
"person":[
{
"details":{
"address":[
{
"line":["5554519 testdr"],
"city":"testland",
"state":"TT",
"zip":"12345",
"period":{
"start":"2003-10-22T00:00:00Z",
"end":"9999-12-31T23:59:59Z"
}
}
],
"name":[
{
"use":"usual",
"family":["BC"],
"given":["TWO"],
"period":{
"start":"9999-10-22T00:00:00Z",
"end":"9999-12-31T23:59:59Z"
}
}
],
"gender":{
"code":"M",
"display":"Male"
},
"birthDate":"9999-02-03T00:00:00Z",
"identifier":[
{
"use":"unspecified",
"system":"urn:oid:2.19.8",
"key":"",
"period":{
"start":"9999-10-22T00:00:00Z",
"end":"9999-12-31T23:59:59Z"
}
}
],
"telecom":[
{
"system":"email",
"value":"test#test.com",
"use":"unspecified",
"period":{
"start":"9999-10-22T00:00:00Z",
"end":"9999-12-31T23:59:59Z"
}
}
],
"photo":[
{
"content":{
"contentType":"image/jpeg",
"language":"",
"data":"",
"size":0,
"hash":"",
"title":"My Picture"
}
}
]
},
"enrolled":true,
"enrollmentSummary":{
"dateEnrolled":"9999-02-07T21:39:11.174Z",
"enroller":"test Support"
},
"_links":{
"self":{
"href":"https://integration.rest.api.test.com/v1/person/-182d-4296-90cc"
},
"unenroll":{
"href":"https://integration.rest.api.test.com/v1/person/1b018dc4-182d-4296-90cc-/unenroll"
},
"personLink":{
"href":"https://integration.rest.api.test.com/v1/person/-182d-4296-90cc-953c/personLink"
},
"personMatch":{
"href":"https://integration.rest.api.commonwellalliance.org/v1/person/-182d-4296-90cc-/personMatch?orgId="
}
}
}
]
}
}
Here is the code I use to convert to the object.
JavaScriptSerializer js = new JavaScriptSerializer();
var xx = (PersonsearchVM)js.Deserialize(jsonstr, typeof(PersonsearchVM));
Is there any other wat to generate the object and parse?

I think you have some invalid characters in your JSON string. Run it through a validator and add the necessary escape characters.
http://jsonlint.com/

You aren't casting it to the right object. Cast it to the type RootObject.
Eg
JavaScriptSerializer js = new JavaScriptSerializer();
var xx = (RootObject)js.Deserialize(jsonstr, typeof(RootObject));
The code that json 2 csharp creates is this:
public class SearchParameters
{
public string key { get; set; }
public string system { get; set; }
}
public class Self
{
public string href { get; set; }
}
public class LinKs
{
public Self self { get; set; }
}
public class Period
{
public string start { get; set; }
public string end { get; set; }
}
public class Address
{
public List<string> line { get; set; }
public string city { get; set; }
public string __invalid_name__state { get; set; }
public string zip { get; set; }
public Period period { get; set; }
}
public class PerioD2
{
public string start { get; set; }
public string end { get; set; }
}
public class Name
{
public string use { get; set; }
public List<string> family { get; set; }
public List<string> given { get; set; }
public PerioD2 __invalid_name__perio
d { get; set; }
}
public class Gender
{
public string __invalid_name__co
de { get; set; }
public string display { get; set; }
}
public class Period3
{
public string start { get; set; }
public string __invalid_name__end { get; set; }
}
public class Identifier
{
public string use
{ get; set; }
public string system { get; set; }
public string key { get; set; }
public Period3 period { get; set; }
}
public class Period4
{
public string start { get; set; }
public string end { get; set; }
}
public class Telecom
{
public string system { get; set; }
public string value { get; set; }
public string use { get; set; }
public Period4 period { get; set; }
}
public class Content
{
public string contentType { get; set; }
public string language { get; set; }
public string __invalid_name__dat
a { get; set; }
public int size { get; set; }
public string hash { get; set; }
public string title { get; set; }
}
public class Photo
{
public Content content { get; set; }
}
public class Details
{
public List<Address> address { get; set; }
public List<Name> name { get; set; }
public Gender gender { get; set; }
public string birthDate { get; set; }
public List<Identifier> identifier { get; set; }
public List<Telecom> telecom { get; set; }
public List<Photo> photo { get; set; }
}
public class EnrollmentSummary
{
public string dateEnrolled { get; set; }
public string __invalid_name__en
roller { get; set; }
}
public class Self2
{
public string href { get; set; }
}
public class UnEnroll
{
public string href { get; set; }
}
public class PersonLink
{
public string href { get; set; }
}
public class PersonMatch
{
public string href { get; set; }
}
public class Links2
{
public Self2 self { get; set; }
public UnEnroll __invalid_name__un
enroll { get; set; }
public PersonLink personLink { get; set; }
public PersonMatch personMatch { get; set; }
}
public class Person
{
public Details details { get; set; }
public bool __invalid_name__e
nrolled { get; set; }
public EnrollmentSummary enrollmentSummary { get; set; }
public Links2 _links { get; set; }
}
public class Embedded
{
public List<Person> person { get; set; }
}
public class RootObject
{
public SearchParameters searchParameters { get; set; }
public string message { get; set; }
public LinKs __invalid_name___lin
ks { get; set; }
public Embedded _embedded { get; set; }
}

The following function will convert JSON into a C# class where T is the class type.
public static T Deserialise<T>(string json)
{
T obj = Activator.CreateInstance<T>();
using (MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(json)))
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
obj = (T)serializer.ReadObject(ms); //
return obj;
}
}
You need a reference to the System.Runtime.Serialization.json namespace.
The function is called in the following manner;
calendarList = Deserialise<GoogleCalendarList>(calendarListString);
calendarlist being the C# class and calendarListString the string containing the JSON.

extract data from json in asp.net c#

I'm trying to extract some data from json. I've been looking for a solution either in JSS or Json.net but haven't been able to figure this problem out. this is how my Json looks like:
Note: i Have tested and the mapping and decentralization works! I'm looking for a way to extract specifc data from the json!
Thanks in Advance!
{
"tasks":[
{
"id":"tmp_fk1345624806538",
"name":"Gantt editor ",
"code":"",
"level":0,
"status":"STATUS_ACTIVE",
"start":1346623200000,
"duration":5,
"end":1347055199999,
"startIsMilestone":false,
"endIsMilestone":false,
"assigs":[
{
"resourceId":"tmp_3",
"id":"tmp_1345625008213",
"roleId":"tmp_1",
"effort":7200000
}
],
"depends":"",
"description":"",
"progress":0
},
{
"id":"tmp_fk1345624806539",
"name":"phase 1",
"code":"",
"level":1,
"status":"STATUS_ACTIVE",
"start":1346623200000,
"duration":2,
"end":1346795999999,
"startIsMilestone":false,
"endIsMilestone":false,
"assigs":[
{
"resourceId":"tmp_1",
"id":"tmp_1345624980735",
"roleId":"tmp_1",
"effort":36000000
}
],
"depends":"",
"description":"",
"progress":0
},
{
"id":"tmp_fk1345624789530",
"name":"phase 2",
"code":"",
"level":1,
"status":"STATUS_SUSPENDED",
"start":1346796000000,
"duration":3,
"end":1347055199999,
"startIsMilestone":false,
"endIsMilestone":false,
"assigs":[
{
"resourceId":"tmp_2",
"id":"tmp_1345624993405",
"roleId":"tmp_2",
"effort":36000000
}
],
"depends":"2",
"description":"",
"progress":0
}
],
"resources":[
{
"id":"tmp_1",
"name":"Resource 1"
},
{
"id":"tmp_2",
"name":"Resource 2"
},
{
"id":"tmp_3",
"name":"Resource 3"
}
],"roles":[
{
"id":"tmp_1",
"name":"Project Manager"
},
{
"id":"tmp_2",
"name":"Worker"
}
],
"canWrite":true,
"canWriteOnParent":true,
"selectedRow":0,
"deletedTaskIds":[],
}
i've already mapped as follow
public class Rootobject
{
public Task[] tasks { get; set; }
public Resource[] resources { get; set; }
public Role[] roles { get; set; }
public bool canWrite { get; set; }
public bool canWriteOnParent { get; set; }
public int selectedRow { get; set; }
public object[] deletedTaskIds { get; set; }
}
public class Task
{
public string id { get; set; }
public string name { get; set; }
public string code { get; set; }
public int level { get; set; }
public string status { get; set; }
public long start { get; set; }
public int duration { get; set; }
public long end { get; set; }
public bool startIsMilestone { get; set; }
public bool endIsMilestone { get; set; }
public Assig[] assigs { get; set; }
public string depends { get; set; }
public string description { get; set; }
public int progress { get; set; }
}
public class Assig
{
public string resourceId { get; set; }
public string id { get; set; }
public string roleId { get; set; }
public int effort { get; set; }
}
public class Resource
{
public string id { get; set; }
public string name { get; set; }
}
public class Role
{
public string id { get; set; }
public string name { get; set; }
}
and I need to extract following information from my json.(from specific Task in may json! for example the first one with id : tmp_fk1345624806538 ).
Note: i'm getting my json from a json file as follow:
string startDate; // this is what i need to extract
string endDate; // this is what i need to extract
string Progress; // this is what i need to extract
public void load()
{
GC.GClass l = new GC.GClass();
string jsonString = l.load(); // i get my json from a json file
Rootobject project = JsonConvert.DeserializeObject<Rootobject>(jsonString);
}

You can use LINQ to query the object quickly.
Task task = project.tasks.FirstOrDefault(t=> t.id == "tmp_fk1345624806538");
Test task, and if null then there was not task with matching id. If you are sure that there will be a matching task your can just use .First(), but it will throw an exception if there is no match in the list
You'll need to add a using System.Linq; if you don't have that already.

Access Elements in JSON File Using C#

I have an JSON result like this
{
"authenticationResultCode":"ValidCredentials",
"brandLogoUri":"http:\/\/dev.virtualearth.net\/Branding\/logo_powered_by.png",
"copyright":"Copyright © 2011 Microsoft and its suppliers. All rights reserved. This API cannot be accessed and the content and any results may not be used, reproduced or transmitted in any manner without express written permission from Microsoft Corporation.",
"resourceSets":[
{
"estimatedTotal":1,
"resources":[
{
"__type":"Location:http:\/\/schemas.microsoft.com\/search\/local\/ws\/rest\/v1",
"bbox":[
47.636257744012461,
-122.13735364288299,
47.643983179153814,
-122.12206713944467
],
"name":"1 Microsoft Way, Redmond, WA 98052",
"point":{
"type":"Point",
"coordinates":[
47.640120461583138,
-122.12971039116383
]
},
"address":{
"addressLine":"1 Microsoft Way",
"adminDistrict":"WA",
"adminDistrict2":"King Co.",
"countryRegion":"United States",
"formattedAddress":"1 Microsoft Way, Redmond, WA 98052",
"locality":"Redmond",
"postalCode":"98052"
},
"confidence":"High",
"entityType":"Address",
"geocodePoints":[
{
"type":"Point",
"coordinates":[
47.640120461583138,
-122.12971039116383
],
"calculationMethod":"InterpolationOffset",
"usageTypes":[
"Display"
]
},
{
"type":"Point",
"coordinates":[
47.640144601464272,
-122.12976671755314
],
"calculationMethod":"Interpolation",
"usageTypes":[
"Route"
]
}
],
"matchCodes":[
"Good"
]
}
]
}
],
"statusCode":200,
"statusDescription":"OK",
"traceId":"b0b1286504404eafa7e7dad3e749d570"
}
I want to get a list of objects, and every object will contain the value of coordinates
So how can access these element by name?
I am using C# as a code behind.

You can use package like Json.NET for this task.
and easily you can generate classes by giving json string from http://json2csharp.com/
then you can access properties of items as below
RootObject obj = JsonConvert.DeserializeObject<RootObject>(jsonText);
below are the classes generated from the json2csharp for given json
public class Point
{
public string type { get; set; }
public List<double> coordinates { get; set; }
}
public class Address
{
public string addressLine { get; set; }
public string adminDistrict { get; set; }
public string adminDistrict2 { get; set; }
public string countryRegion { get; set; }
public string formattedAddress { get; set; }
public string locality { get; set; }
public string postalCode { get; set; }
}
public class GeocodePoint
{
public string type { get; set; }
public List<double> coordinates { get; set; }
public string calculationMethod { get; set; }
public List<string> usageTypes { get; set; }
}
public class Resource
{
public string __type { get; set; }
public List<double> bbox { get; set; }
public string name { get; set; }
public Point point { get; set; }
public Address address { get; set; }
public string confidence { get; set; }
public string entityType { get; set; }
public List<GeocodePoint> geocodePoints { get; set; }
public List<string> matchCodes { get; set; }
}
public class ResourceSet
{
public int estimatedTotal { get; set; }
public List<Resource> resources { get; set; }
}
public class RootObject
{
public string authenticationResultCode { get; set; }
public string brandLogoUri { get; set; }
public string copyright { get; set; }
public List<ResourceSet> resourceSets { get; set; }
public int statusCode { get; set; }
public string statusDescription { get; set; }
public string traceId { get; set; }
}

Since you already appear to be using DataContractJsonSerializer, let's stick with that. The best way to deserialize json is to first define a model which will capture the relevant data e.g.
public class JsonModel
{
public int StatusCode { get; set; }
public string StatusDescription { get; set; }
public string TraceId { get; set; }
...
}
Next, decorate the model so it's fit for deserialization
[DataContract]
public class JsonModel
{
[DataMember(Name = "statusCode")]
public int StatusCode { get; set; }
[DataMember(Name = "statusDescription")]
public string StatusDescription { get; set; }
[DataMember(Name = "traceId")]
public string TraceId { get; set; }
...
}
Then finally, perform the deserialization
using (var memoryStream = new MemoryStream(Encoding.Unicode.GetBytes(jsonData)))
{
var serializer = new DataContractJsonSerializer(typeof(JsonModel));
var model = (JsonModel) serializer.ReadObject(memoryStream);
Console.WriteLine(model.StatusCode);
}
So how can access these element by name?
The other option for deserialization which would give you the ability to reference the properties by name would be to use a dynamic object e.g.
var model = new JavaScriptSerializer().Deserialize<dynamic>(jsonData);
Console.WriteLine(model["statusCode"]);

Add the classes for all Bing Maps REST Services from the URL below to your project:
JSON Data Contracts
Then, make sure that you add the using directive:
using BingMapsRESTService.Common.JSON;
and read the string as follows (where stream is a stream for your json):
var d = new DataContractJsonSerializer(typeof(Response));
var o = d.ReadObject(stream);