This question already has answers here:
Add multiple items to a list
(5 answers)
Closed 3 years ago.
I was wondering if someone could help me. I have 2 classes:
`public class EventPutDto
{
//public string id { get; set; }
public string eventGbsCode { get; set; }
//public string portfolioId { get; set; }
public string businessUnitId { get; set; }
public List<Multilingual> multilingual { get; set; }
public bool supportedInPlatform { get; set; }
public bool gbsEnabled { get; set; }
public bool isParticipationEvent { get; set; }
}`
public class Multilingual
{
public string locale { get; set; }
public string name { get; set; }
}
I want to add a name and locale to the list property in the eventPutDto class. How do I do it? For example I want to add 3 locales so it should be something like
"en-gb" - "english name",
"it-it" - "italian name",
"es-es" - "spanish name"
I need to know this as I'm trying to post some Json to an endpoint.
Looks like what you want is a dictionary.
So, locale should not be of type string, but a Dictionary<string, string>
Read up on them, they are a collection of keys and values.
Related
This question already has answers here:
How can I parse a JSON string that would cause illegal C# identifiers?
(3 answers)
Deserialize deeply Nested Json having one blank key using c#
(1 answer)
Closed 1 year ago.
I have a json string like this:
{"status":false,"data":{"errors":{"":"error45"}}}
I cant make a class for this json string, because the last part has no name => ""
I test this class:
public class Result
{
public bool status { set; get; }
public ResultDetail data { set; get; }
}
public class ResultDetail
{
public ErrorDetails errors { set; get; }
}
public class ErrorDetails
{
public string abc { set; get; }
}
but abc returns null !!!!
You can use the Dictionary<string, string> for the errors.
public class Result
{
public bool status { set; get; }
public ResultDetail data { set; get; }
}
public class ResultDetail
{
public Dictionary<string, string> errors { set; get; }
}
and use the following to deserialize and access the dictionary.
var result = JsonConvert.DeserializeObject<Result>(json);
Console.WriteLine(result.data.errors.Values.FirstOrDefault());
Or you can assign the value to a variable
obj.data.errors.TryGetValue("", out string error);
Console.WriteLine(error);
I will mention this as well that the property names should be Proper names (first letter Capital). To be able to deserialize properly, use the [JsonProperty("corresponding_json_key")] to each of your properties of your classes to conform to C# standards.
public class Result
{
[JsonProperty("status")]
public bool Status { set; get; }
[JsonProperty("data")]
public ResultDetail Data { set; get; }
}
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Thanks for your help, I am writing a web API (using dotnet core 3) that accepts network errors report :
{
"sampling_fraction": 1.0,
"server_ip": "192.0.2.1",
"protocol": "http/1.1",
"method": "GET",
"request_headers": {
"If-None-Match": ["01234abcd"]
},
"response_headers": {
"ETag": ["01234abcd"]
},
"status_code": 304,
"type": "ok"
}
And trying to get request_headers and response_headers as collections of strings with values coming from HeaderNames class. Roughly
class Data
{ ...
public string Method {get;set;}
public List<string> RequestHeaders {get;set;}
public List<string> ResponseHeaders {get;set;}
}
So far I have created a Model Class to Cast it:
public class ErrorBody
{
public double Sampling_Fraction { get; set; }
public string Server_Ip { get; set; }
public string Protocol { get; set; }
public string Method { get; set; }
public HttpRequestHeader Request_Headers { get; set; }
public HttpResponseHeaders Response_Headers { get; set; }
public int Status_Code { get; set; }
public string Type { get; set; }
}
From Json I am trying to cast "Request_Headers" and "Response_Headers" as a collection of Headers, like:
public HttpRequestHeader Request_Headers { get; set; }
public HttpResponseHeaders Response_Headers { get; set; }
unsing System.Net
But the casting fails with error:
"errors": {
"$.body.request_headers": [
"The JSON value could not be converted to System.Net.HttpRequestHeader. Path: $.body.request_headers | LineNumber: 9 | BytePositionInLine: 24."
]
}
My method looks like:
[HttpPost]
public IActionResult CreateReport(ErrorDto error)
{
Console.WriteLine(Newtonsoft.Json.JsonConvert.SerializeObject(error));
return Ok();
}
I am trying to cast both objects into a collection of HeaderName
This error is occurring because, as it states, it cannot deserialize the object to type System.Net.HttpRequestHeader. For one, System.Net.HttpRequestHeader is an enum. For two, the key If-None-Match has hyphens, and that can't be deserialized to a C# property because property names don't have hyphens. You would probably want to use a custom type instead.
However, I recommend using a Dictionary because, otherwise, your custom type would have to have a property for every possible header value. So change your Request_Headers and Response_Headers objects to type Dictionary<string, List<string>> and I think that'll take care of it.
If you were able to change data types on your header collections then you could do deserialise them as Dictionaries:
public class ErrorBody
{
public double Sampling_Fraction { get; set; }
public string Server_Ip { get; set; }
public string Protocol { get; set; }
public string Method { get; set; }
public Dictionary<string, List<string>> Request_Headers { get; set; } // change type here
public Dictionary<string, List<string>> Response_Headers { get; set; } // change type here
public int Status_Code { get; set; }
public string Type { get; set; }
}
void Main()
{
var str = "{\"sampling_fraction\":1,\"server_ip\":\"192.0.2.1\",\"protocol\":\"http\\/1.1\",\"method\":\"GET\",\"request_headers\":{\"If-None-Match\":[\"01234abcd\"]},\"response_headers\":{\"ETag\":[\"01234abcd\"]},\"status_code\":304,\"type\":\"ok\"}";
JsonConvert.DeserializeObject<ErrorBody>(str); // this gave me deserialised object
}
This question already has an answer here:
Deserializing JSON into an object
(1 answer)
Closed 5 years ago.
I have the following string of Json records:
{
"records":[
{
"PK":"1_1_8",
"ID":"8",
"DeviceID":"1",
"RootID":"1",
"CustName":"test1",
"CustSurname":"test2",
"Address":"Nisou 1",
"City":"",
"ZipCode":"",
"PhoneNumber":"45646",
"HomePhoneNumber":"",
"Email":"",
"Notes":"",
"Owner":"1",
"LanguageID":"1",
"LanguagePK":"",
"DeletedFlag":"false",
"created":"2017-10-25 10:15:00",
"modified":"2017-10-25 09:35:43"
},
{
"PK":"1_1_33",
"ID":"33",
"DeviceID":"1",
"RootID":"1",
"CustName":"",
"CustSurname":"",
"Address":"",
"City":"",
"ZipCode":"",
"PhoneNumber":"",
"HomePhoneNumber":"",
"Email":"",
"Notes":"",
"Owner":null,
"LanguageID":"0",
"LanguagePK":"",
"DeletedFlag":"true",
"created":"2017-10-25 10:13:54",
"modified":"2017-10-25 10:13:54"
},
{
"PK":"1_1_16",
"ID":"16",
"DeviceID":"1",
"RootID":"1",
"CustName":"Theodosis",
"CustSurname":"",
"Address":"Dali",
"City":"Nicosia",
"ZipCode":"2540",
"PhoneNumber":"45645",
"HomePhoneNumber":"99123456",
"Email":"theodosis#gmail.com",
"Notes":"",
"Owner":"",
"LanguageID":"1",
"LanguagePK":"",
"DeletedFlag":"false",
"created":"2017-10-25 09:36:22",
"modified":"2017-10-25 09:36:22"
}
]
}
I am using Xamarin PCL in C# trying to parse this string into a list of objects.
I have a Customer class:
public class Customer
{
[PrimaryKey]
public string PK { get; set; }
public int DeviceID { get; set; }
public int ID { get; set; }
public string RootID{ get; set; }
public string CustName { get; set; }
public string CustSurname { get; set; }
public string Address { get; set; }
public string City { get; set; }
public string ZipCode { get; set; }
public string PhoneNumber { get; set; }
public string HomePhoneNumber { get; set; }
public string Email { get; set; }
public string Notes { get; set; }
public bool Owner { get; set; }
public int LanguageID { get; set; }
public string LanguagePK { get; set; }
public bool DeletedFlag { get; set; }
public DateTime created { get; set; }
public DateTime modified { get; set; }
}
I also tried out having a container class with a list of Customer objects.
public class DataContainer
{
public List<Customer> customers { get; set; }
}
I have seen quite a few of examples online on how to parse this into a list or any workable type but nothing seems to be working for me.
I have tried the following (JsonResults holds the string of Json records):
var observation = JsonConvert.DeserializeObject<DataContainer>(JsonResults);
From other posts, I am not able to access JavaScriptSerializer class from my code, perhaps because of the Xamarin PCL Framework I am using.
Any ideas would be very welcome, as I said I do not mind the format I parse the string into, as long as it's workable.
Thank you.
You would have to make the following changes to your code to make this work.
First and most importantly, you don't have a property customers, you have records, so either rename it
public class DataContainer {
public List<Customer> records { get; set; }
}
or add a JsonProperty attribute
[JsonProperty(PropertyName = "records")]
Secondly, your Owner is a bool in C# and a nullable int (int?) in Json. So either change it in your C# class
public int? Owner { get; set; }
or write a converter to do that (e.g. like here)
[JsonConverter(typeof(NullableIntToBooleanConverter))]
public bool Owner { get; set; }
Here is a working .NetFiddle
The JSON string you provided is a JSON object, which contains a single property called records. records property is a List<Customer>. You can not deserialize the given string directly into DataContainer class that you provided because the property names do not match.
In the Class that your provided it is called customers
public class DataContainer {
public List<Customer> customers { get; set; } //records
}
Or please have a look at the attribute for a bit of advanced mapping
[JsonProperty]
JSON you provided is of the form:
{"records":[{Customer},{Customer},{Customer}]}
But Owner property is "1", null or "". Therefore I would suggest redefining Owner as int? (nullable)
Your string shows one object with a property named records that contains a list of other objects. Your code is trying to deserialize this into an object that doesn't have such a property.
Furthermore, the string contains objects with a property Owner that may be missing or have a numeric value. It's definitely not a bool.
You'll have to change Owner to :
public int? Owner { get; set; }
To deserialize the string, you need an object with a records property:
public class DataContainer
{
public Customer[] records { get; set; }
}
var data=JsonConvert.DeserializeObject<DataContainer>(json);
Debug.Assert(data.records.Length == 3);
This question already has answers here:
What is the best way to give a C# auto-property an initial value?
(23 answers)
Closed 5 years ago.
What i'm trying to do is create a new model that will have certain features:
public class GenericGoal
{
public int _id { get; set; }
public List<String> Type_of_Goal { get; set; }
public DateTime Date { get; set; }
}
my quick and small question would be, how would I prepopulate the Type_of_goal field?
You could use a constructor for this; could look like this example.
public class GenericGoal
{
public int _id { get; set; }
public List<String> Type_of_Goal { get; set; }
public DateTime Date { get; set; }
public GenericGoal()
{
Type_of_Goal = new List<String>();
}
}
I recommend the initialisation in the constructor because in my opinion it's cleaner and better readable.
You could give the property 'Type_of_Goal' an initial value, if you don't want to have to initialize it every time, or initialize it when no value is set to it.
public class GenericGoal
{
public int _id { get; set; }
public List<String> Type_of_Goal { get; set; } = new List<String>();
public DateTime Date { get; set; }
}
If it is 'NullReferenceException' you are concerned about, check for null's before accessing the 'Type_of_Goal' property, as follow. Note the ? - Known as Null Propagation Operator
genericGoalInstance.Type_of_Goal?.Add("Good Goal");
This question already has answers here:
Deserializing nested JSON structure to a flattened class with Json.NET using annotations
(3 answers)
Closed 6 years ago.
How can I specify folding?
Here's my json:
{
"result":
{
"code": "123",
"version": "1.2.3"
},
"error": null
}
And here's my class I want to deserialize:
public class Info
{
[JsonProperty("code")]
public string Code { get; set; }
[JsonProperty("version")]
public string Version { get; set; }
[JsonProperty("error")]
public string Error { get; set; }
}
Invoking like this:
var info = JsonConvert.DeserializeObject<Info>(json);
So, is there anyway I can specify, that code and version under result section? I believe I need to use JsonSerializeSettings or something like that.
If you are able to modify your class, then you could create a second class which contains your subproperties:
public class Info
{
[JsonProperty("result")]
public Result Result { get; set; }
[JsonProperty("error")]
public string Error { get; set; }
}
public class Result
{
[JsonProperty("code")]
public string Code { get; set; }
[JsonProperty("version")]
public string Version { get; set; }
}