C# - JSON to Key Value & vice versa

Question

I am fetching a string from a JSON file & want to convert it to Key-Value pair.

I am using JSON.NET for the same.

I know I can deserialize a List using:

List<JsonClass> jsonFileComments = JsonConvert.DeserializeObject<List<JsonClass>>(json);

And I can Deserialize a Array using:

Dictionary<string, string> values = JsonConvert.DeserializeObject<Dictionary<string, string>>(json);

But as my JSON string contains Lists & Arrays in single file only. The sequence is like:

{ List, List, List, Array, List, Array, List }

Can you tell me how can I deserialize it using single way.

Other way is I need to separate out the Arrays & work on separately. And again while Serializing I need to work that stuff.

Most of the time you'd deserialize a JSON string into a specific C# type. Can you show the JSON you're working with? — Andrew Whitaker
– Andrew Whitaker, Commented Feb 9, 2015 at 14:11

Margus · Accepted Answer · 2015-02-09 14:05:51Z

1

Well one way would be to use dynamic(The type is a static type, but an object of type dynamic bypasses static type checking.)?

dynamic d = JObject.Parse("{number:1000, str:'string', array: [1,2,3,4,5,6]}"); Console.WriteLine(d.number); Console.WriteLine(d.str); Console.WriteLine(d.array.Count);

answered Feb 9, 2015 at 14:05

Margus

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3 Comments

Sanjay Adsure Over a year ago

Hi Margus, This dynamic keyword works in Windows Application but when I went to Web Application where I want to use it actually, it throws error saying "Dynamic operations can only be performed in homogenous AppDomain."....Any suggestion?

Margus Over a year ago

@SanjayAdsure Are you running your application on pre .net4.0 ? You can try to load it into a different appdomain (bryancook.net/2010/02/running-code-in-separate-appdomain.html)

Sanjay Adsure Over a year ago

I am using .NET 4.5 with SharePoint 2013

DAK · Accepted Answer · 2015-02-09 14:21:47Z

Hope this code block helps. I'm assuming you have jSon object & you need to parse through it:

Newtonsoft.Json.Linq.JObject o = Newtonsoft.Json.Linq.JObject.Parse(yourJsonData); Newtonsoft.Json.Linq.JArray textArray = (Newtonsoft.Json.Linq.JArray)o["yourArray"]; if (textArray.Count > 0) { for (int i = 0; i < textArray.Count; i++) {//do something} }

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