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Create a custom resolver to map properties into separate models [duplicate]

This question already has answers here:
Json.NET deserialize or serialize json string and map properties to different property names defined at runtime
(4 answers)
Closed last month.
I am writing a custom extension to DefaultContractResolver to map names between a JSON string and models to be deserialized.
The naming in these models is not consistent and I was specifically asked to not change them (renaming, adding attributes, etc).
The json looks like this
"parameter": {
"alarms": [
{
"id": 1,
"name": "alarm1",
"type": 5,
"min": 0,
"max": 2
}
],
"settings": [
{
"id": 1,
"name": "setting1",
"description": "something here"
"type": 1,
"value": 2
}
]
}
The Parameter class (output) has models for Alarms and Settings.
For example, these models look like this:
public class Alarm
{
public int AlarmId { get; set; }
public string AlarmName { get; set; }
public AlarmType RbcType { get; set; }
public int MinimumTolerated { get; set; }
public int MaximumTolerated { get; set; }
}
public class Setting
{
public int SettId { get; set; }
public string Name { get; set; }
public string Description { get; set; }
public SettingType Type { get; set; }
public int IntValue { get; set; }
}
As an example the value of "id" in the json can relate to AlarmId or SettId, so I cannot have just one resolver to perform the ResolvePropertyName(string propertyName)
And I don't know how to get about with this.

I don't think that you need any mapper, I would use this code
var jObj = JObject.Parse(json)["parameter"];
var parameters = new
{
alarms = jObj["alarms"].Select(x => new Alarm { AlarmId = (int)x["id"], AlarmName = (string)x["name"] }).ToList(),
settings = jObj["settings"].Select(x => new Setting { SettId = (int)x["id"] }).ToList()
};

Deserialize dynamic JSON data to C# object [duplicate]

This question already has answers here:
How can I parse a JSON string that would cause illegal C# identifiers?
(3 answers)
Using JSON.NET to read a dynamic property name
(1 answer)
Create a strongly typed c# object from json object with ID as the name
(1 answer)
Closed 4 years ago.
I have a JSON string like this:
{
"ProfileChange": 5,
"profileId": "anId",
"profileChanges": [
{
"changeType": "fullProfileUpdate",
"profile": {
"_id": "g3fwerfgscsdadad",
"rvn": 7,
"wipeNumber": 5,
"accountId": "gw4gefsdfswfwfwdqe",
"profileId": "anId",
"version": "latestUpdate",
"items": {
"abc-123": {
"templateId": "default",
"attributes": {
"max": 0,
"bonus": 1,
"seen": 1,
"xp": 0,
"variants": [],
"favorite": false
},
"quantity": 1
},
"zxc-456": {
"templateId": "default",
"attributes": {
"max": 0,
"bonus": 1,
"seen": 1,
"xp": 0,
"variants": [],
"favorite": false
},
"quantity": 1
}
}
}
}
]
}
I want to deserialize it to a C# object, and here is my code:
class Model
{
[JsonProperty("ProfileChange")] public long ProfileChange { get; set; }
[JsonProperty("profileId")] public string ProfileId { get; set; }
[JsonProperty("profileChanges")] public List<ProfileChange> ProfileChanges { get; set; }
}
public class ProfileChange
{
[JsonProperty("changeType")] public string ChangeType { get; set; }
[JsonProperty("profile")] public Profile Profile { get; set; }
}
public class Profile
{
[JsonProperty("_id")] public string Id { get; set; }
[JsonProperty("rvn")] public long Rvn { get; set; }
[JsonProperty("wipeNumber")] public long WipeNumber { get; set; }
[JsonProperty("accountId")] public string AccountId { get; set; }
[JsonProperty("profileId")] public string ProfileId { get; set; }
[JsonProperty("version")] public string Version { get; set; }
[JsonProperty("items")] public Items Items { get; set; }
}
public class Items
{
public List<IDictionary<string, ItemDetails>> Item { get; set; }
}
public class ItemDetails
{
[JsonProperty("templateId")] public string TemplateId { get; set; }
}
And then I implement it in my main implementation like this:
var obj = JsonConvert.DeserializeObject<Model>(json);
And it does deserialize most of the data, however, the part I am struggling to deserialize is the Items one. Since they are generated dynamically, I want to create a dictionary of the items, with string for the entry and ItemDetails for the details of it.
I have used Dictionary and also made it a list, since there are multiple items, but it still is null. I also tried non-list, didn't return anything. Only null. All other details are fine, except the dictionary and dynamically generated JSON data.
I need help to fix the issue with deserializer returning null for the Items Dictionary.

JSON won't deserialise fully to C# class [duplicate]

This question already has answers here:
Json.net failing to load certain properties belonging to a class object?
(2 answers)
Closed 4 years ago.
I am trying to deserialise some JSON which looks like this:
{
"Results":{
"Prediction":{
"type":"table",
"value":{
"ColumnNames":[
"HT",
"AT",
"X",
"Y",
"Z"
],
"ColumnTypes":[
"String",
"String",
"Double",
"Double",
"Double"
],
"Values":[
[
"Mum",
"Dad",
"0.172627246490883",
"0.171741768332677",
"0.65563098517644"
],
[
"Father",
"Mother",
"0.391368227731864",
"0.21270005247278",
"0.395931719795356"
]
]
]
}
}
}
}
The C# class looks like this:
public class RootObject
{
public Results Results { get; set; }
}
public class Results
{
public Prediction Prediction { get; set; }
}
public class Prediction
{
public string type { get; set; }
public Value value { get; set; }
}
public class Value
{
string[] ColumnNames { get; set; }
string[] ColumnTypes { get; set; }
string[][] Values { get; set; }
}
It deserialises up to the final property "value", which is not matched. If I turn on the error handling to see why I get the following error:
Additional information: Could not find member 'ColumnNames' on object of type 'Value'. Path 'Results.Prediction.value.ColumnNames', line 1, position 64.
I have a simple C# example which reproduces the whole problem:
var derek = #"{""Results"":{""Prediction"":{""type"":""table"",""value"":{""ColumnNames"":[""HT"",""AT"",""X"",""Y"",""Z""],""ColumnTypes"":[""String"",""String"",""Double"",""Double"",""Double""],""Values"":[[""Mum"",""Dad"",""0.172627246490883"",""0.171741768332677"",""0.65563098517644""],[""Father"",""Mother"",""0.391368227731864"",""0.21270005247278"",""0.395931719795356""]]]}}}}";
var returnedObj = JsonConvert.DeserializeObject <RootObject> (derek, settings);
I am pretty sure my class matches the JSON. Why doesn't it deserialise?

In C# properties default to private, they need to be public to be picked up by Newtonsoft/Json
public class Value
{
public string[] ColumnNames { get; set; }
public string[] ColumnTypes { get; set; }
public string[][] Values { get; set; }
}

json string to c# objects [closed]

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Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 7 years ago.
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I was tried to deserialise this json string to c# objects but i was not succeeded.can anone one help me out how can i acheive this.
{
products_info: [10]
0: {
product_id: "20"
product_name: "Crocin"
medical_name: "Crocin"
slot_no: "1"
num_of_units: "10"
price: "16"
expiry_date: "2016-01-15"
product_image: "http://xyz/prdct_imgs/eno.png"
}-
..................
9: {
product_id: "29"
product_name: "Stayfree"
medical_name: "Stayfree"
slot_no: "11"
num_of_units: "10"
price: "30"
expiry_date: "2016-09-02"
product_image: "http://xyz/prdct_imgs/eno.png"
}-
-
response: "1"
}

The Json you've provided seems to be in wrong format (please check the rules of JSON format), here's how it should look:
{
"products_info": [
{
"product_id": "20",
"product_name": "Crocin",
"medical_name": "Crocin",
"slot_no": "1",
"num_of_units": "10",
"price": "16",
"expiry_date": "2016-01-15",
"product_image": "http://xyz/prdct_imgs/eno.png"
},
{
"product_id": "29",
"product_name": "Stayfree",
"medical_name": "Stayfree",
"slot_no": "11",
"num_of_units": "10",
"price": "30",
"expiry_date": "2016-09-02",
"product_image": "http://xyz/prdct_imgs/eno.png"
}
],
"response": "1"
}
Now when you have the right format you can deserialize using Json.net for example (you can install it from nuget) to the following class:
public class ProductsInfo
{
public string product_id { get; set; }
public string product_name { get; set; }
public string medical_name { get; set; }
public string slot_no { get; set; }
public string num_of_units { get; set; }
public string price { get; set; }
public string expiry_date { get; set; }
public string product_image { get; set; }
}
public class YourClass
{
public List<ProductsInfo> products_info { get; set; }
public string response { get; set; }
}
YourClass yourClass = JsonConvert.DeserializeObject(json);
You can see how it's done here:
http://www.newtonsoft.com/json/help/html/deserializeobject.htm

Deserailize JSON string [closed]

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Closed 8 years ago.
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I have JSON in this format:
{
"user": "123#abc",
"filter": [
{
"filterName": "Filter1",
"condition": "1",
"values": [
"123"
]
},
{
"filterName": "Filter2",
"condition": "2",
"values": [
"ABC",
"XYZ"
]
}
],
"onlyMerge": "true",
"mergeBy": [
]
}
And I am using these classes
public class Outermost{
public string user;
public Root filter ;
public string onlyMerge;
public string mergeby;
}
public class values {
public string value { get; set; }
}
public class Filters {
public string filtername {get; set; }
public string condition {get; set;}
public values values { get; set; }
}
public class Root {
public List<Filters> Filters { get; set; }
}
JSONConvert.Deserialize(Outermost)
I have to deserialize the structure

Paste your JSON into http://json2csharp.com/ and you will see that your C# classes don't match the JSON.

Update 2:
Visual Studio 2013 has a built-in Json to C# Class converter tool!  :)
Update:
Just a note about the great tool http://json2csharp.com/ : When working with a object that has properties of complex types, You may want to check about the classes it creates, because sometimes it'll created unnecessarily/undesirable classes. Example:
Json
var objJson = {
"id_product": 19,
"description": "Laptop",
"_links": {
"buy": {
"href": "/Product/Buy/19",
"title": "Buy It Now!"
},
"more_details": {
"href": "/Product/Details/19",
"title": "More Details..."
}
}
};
Generated Class/Classes:
public class Buy
{
public string href { get; set; }
public string title { get; set; }
}
public class MoreDetails
{
public string href { get; set; }
public string title { get; set; }
}
public class Links
{
public Buy buy { get; set; }
public MoreDetails more_details { get; set; }
}
public class RootObject
{
public int id_product { get; set; }
public string description { get; set; }
public Links _links { get; set; }
}
As You can see, the two classes Buy and MoreDetails have exactly the same structure and purpose, so You may want to replace it with a more generic class instead of using repeatedly classes (there are scenarios where this redundant structure is more appropriate). In a very similar scenario, I've created a class named Link.
Original Answer:
You don't said enough to be sure what's your problem. Try in the future specify better what are your difficulties and needs.
But, I guess your problem is some exception being throw or some properties not being bind...
If you pay attention, in your JSON example object, filter is directly a collection, and not a property that has a collection inside. Thus, just change
public Root filter; to public List<Filters> filter { get; set; }.
Also, mergeBy and values are collections, and not simple strings. You could use http://json2csharp.com/ to generate automatically the correspondent C# class of your JSON object, and check what properties are not matching... (Or, substitute your whole class, that is what I would recommend...)