Deserialize the Json property(Nested Json) as string in C#

Question

I need requirement that the deserialize the json as string which is available inside another Json. I have the Json string as like below,

string testJson =
   "{
        "AssemblyName":"AssemplyName",
        "ClassName":"AssemplyName.ClassName",
        "Options":"{ "property1":"value1","property2":10}"
   }";

To deserialize, I have the class like below,

public class CType
{
    public string AssemblyName { get; set; }
    public string ClassName { get; set; }
    public string Options { get; set; }
}

So, I deserialize like below,

CType cType = JsonConvert.DeserializeObject<CType>(testJson);

Now, I expect the resuly like below,

AssemblyName = "AssemplyName"
ClassName = "AssemplyName.ClassName"
Options = "{ "property1":"value1","property2":10}"

It would be much appreciated anyone can help on this

I believe you think about that the option block not a valid one right?. I think that's the problem I have faced. I mean, we have received the Json as a string. So, we need to deserialze the same way. But the JsonConvertor through the error message. — Ramachandran
– Ramachandran, Commented Jun 10, 2020 at 5:24
Take a look at this newtonsoft.com/json/help/html/SerializingJSON.htm And use this link to make you Json to Class dotnetfiddle.net/WJwvm3 — Artavazd
– Artavazd, Commented Jun 10, 2020 at 6:14
Does this answer your question? Deserialize nested JSON into C# objects — Pavel Anikhouski
– Pavel Anikhouski, Commented Jun 10, 2020 at 6:59

Vivek Nuna · Accepted Answer · 2020-06-10 06:05:00Z

2

You can declare the class like this.

public class Options
{
    public string property1 { get; set; }
    public string value1 { get; set; }
    public int property2 { get; set; }
}

public class Example
{
    public string AssemblyName { get; set; }
    public string ClassName { get; set; }
    public Options Options { get; set; }
}

Then you caan deserialize and serilize the string like this.

string str = "json string";
Example cType = JsonConvert.DeserializeObject<Example>(str);
string json = JsonConvert.SerializeObject(cType.Options);

Valid Json:

{
    "AssemblyName": "AssemplyName",
    "ClassName": "AssemplyName.ClassName",
    "Options": {
        "property1 ": "",
        "value1": "",
        "property2": 10
    }
}

For dynamic nested json you can declare the Options as dictionary. Above code will work.

public Dictionary<string, string> Options { get; set; }

edited Jun 10, 2020 at 6:05

answered Jun 10, 2020 at 5:37

Vivek Nuna

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2 Comments

Ramachandran Over a year ago

Thanks for your response vivek. I need to deserailze that option as a string. Because, the options property may changed. I mean, for example, we can received the two property, and some time we receive three. So, we are not able to define the class like above. I'm not sure I correct. But, this is my requirement. Sorry.

Ramachandran Over a year ago

Ok... Thanks vivek. I will check with your idea and let you know. Thank you.

Krishna Varma · Accepted Answer · 2020-06-10 06:27:20Z

1

To read options form given json, you need to remove the additional quotations using Trim and DeserializeObject

var cType = JsonConvert.DeserializeObject<CType>(testJson);
var options = JsonConvert.DeserializeObject<Dictionary<string, string>>(cType.Options.Trim('"'));

answered Jun 10, 2020 at 6:27

Krishna Varma

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Comments

shat90 · Accepted Answer · 2020-06-10 06:48:28Z

Assuming you want the options deserialized as a string instead of a dictionary - you would need to change the json file and escape the quotes like below

{
"AssemblyName": "AssemplyName",
"ClassName": "AssemplyName.ClassName",
"Options": "
\"property1\":\"value1\",
\"property2\": 10   
"
}

With that done your existing code

 class Program
{
    static void Main(string[] args)
    {
        string testJson = File.ReadAllText(@"D:\test.json");

        CType cType = JsonConvert.DeserializeObject<CType>(testJson);

    }
}
public class CType
{
    public string AssemblyName { get; set; }
    public string ClassName { get; set; }
    public string Options { get; set; }
}

However if you want to make it to another object that is like a Dictionary - the json would need slight change as below

{
"AssemblyName": "AssemplyName",
"ClassName": "AssemplyName.ClassName",
"Options": {
"property1":"value1",
"property2": 10
}
}

The code would need the property to be changed to Dictionary

 class Program
{
    static void Main(string[] args)
    {
        string testJson = File.ReadAllText(@"D:\test.json");

        CType cType = JsonConvert.DeserializeObject<CType>(testJson);

    }
}
public class CType
{
    public string AssemblyName { get; set; }
    public string ClassName { get; set; }
    public Dictionary<string,string> Options { get; set; }
}

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