Question 109950 in Json Question posted in
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How can I convert a single object of a json string into a .Net object?

I have a class like these:

class MyDate
{
    int year, month, day;
}

I want to fill an object of this class with the data from this JSON string (only from "dateOfBirth"):

{
    "firstName":"Markoff",
    "lastName":"Chaney",
    "dateOfBirth":
    {
        "year":"1901",
        "month":"4",
        "day":"30"
    }
}

I know the
JsonConvert.DeserializeObject<>(jsonString)

but I am looking for a way to convert only a single object of a whole JsonString into a .Net object.

I am looking for a DeserializeObject method with a JObject as parameter.

Tags:

3

Answers


  1. 0 
    class MyDate
{
    public int year, month, day;
}
Make sure variable should be public



 string str = "{'firstName':'Markoff','lastName':'Chaney','dateOfBirth':{'year':'1901','month':'4','day':'30'}}";
            dynamic data = JsonConvert.DeserializeObject(str);
            if (data.dateOfBirth != null)
            {
                string strJson = JsonConvert.SerializeObject(data.dateOfBirth);
                MyDate myDate = JsonConvert.DeserializeObject<MyDate>(strJson);
            }
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  2. 0

    you need to parse your json string, only after this you can deserialize any part you need. Your class should be fixed too.

    using Newtonsoft.Json;

MyDate myDate = JObject.Parse(json)["dateOfBirth"].ToObject<MyDate>();

public class MyDate
{
    public int year { get; set; }
    public int month { get; set; }
    public int day { get; set; }
}
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  3. 0

    You can use SelectToken

     var result = JObject.Parse(jsonStr).SelectToken("dateOfBirth").ToObject<MyDate>();

    You need to make your class properties to public

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