Parsing JSON key/value pairs with JSON.NET

Question

I have a .NET project. I'm using the JSON.NET library. I need to use this library to parse some JSON. My JSON looks like this:

{"1":"Name 1","2":"Name 2"}

The object is really just a list of key/value pairs. I am trying to figure out how to use JSON.NET to 1) parse this JSON and 2) loop through the key/value pairs. Is there a way to do this? If so, how?

The only thing I see is de-serializing into a strongly-typed object.

Thank you so much!

Did you generate this JSON? Will it always be 1 and 2 as the keynames? — mason
– mason, Commented Apr 14, 2015 at 16:28
Well what have you tried so far in terms of JSON.NET? It looks like you should be able to parse this as a JObject, or convert it to a Dictionary<string, string> very easily... — Jon Skeet
– Jon Skeet, Commented Apr 14, 2015 at 16:28
possible duplicate of How can I deserialize JSON to a simple Dictionary<string,string> in ASP.NET? — Jamie Dixon
– Jamie Dixon, Commented Apr 14, 2015 at 16:28
Please post some code you've tried so we can help you further. — Biscuits
– Biscuits, Commented Apr 14, 2015 at 16:32
This question looks like the other side of this coin: stackoverflow.com/questions/29635808/… — Vaccano
– Vaccano, Commented Apr 14, 2015 at 19:46

EZI · Accepted Answer · 2015-04-14 16:32:31Z

75

You can deserialize to Dictionary<string, string>

var dict = JsonConvert.DeserializeObject<Dictionary<string, string>>(json);
foreach(var kv in dict)
{
    Console.WriteLine(kv.Key + ":" + kv.Value);
}

Since JObject implements IDictionary, you can also simply use JObject.Parse

var dict = JObject.Parse(@"{""1"":""Name 1"",""2"":""Name 2""}");

answered Apr 14, 2015 at 16:32

EZI

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Comments

Ashutosh Pathak · Accepted Answer · 2015-07-16 12:29:01Z

6

Below is the json Where subratings have key value pair

{  
"data": [    
{      
"id": "288560300",      
"lang": "en", 

"subratings":     {     

"Cleanliness": "5",

"Sleep Quality": "5",

"Service": "5"
  }
}
]}

public void LoadJsonKeyValuePair(string json)
{  
Rootobject item = JsonConvert.DeserializeObject<Rootobject>(json);
}

public class Rootobject
{
[JsonProperty("data")]
public List<Datum> data { get; set; }
}

public class Datum
{
[JsonProperty("id")]
public string id { get; set; }
[JsonProperty("lang")]
public string lang { get; set; }
[JsonProperty("subratings")]
public Dictionary<string, object> subratings { get; set; }
}

You can use Newtonsoft.Json to deserialize this object

answered Jul 16, 2015 at 12:29

Ashutosh Pathak

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2 Comments

Autonomic Over a year ago

Could you perhaps explain how to list the key/value pair with this example? I have a similar setup. Its not clear how to access the key/value pair with whats here.

mrlucasrib Over a year ago

is it possible to select only a few keys from the dictionary?

Waheed Rafiq · Accepted Answer · 2017-04-16 15:28:55Z

1

Hi all felt I should also share this

The above answer works for me using text box in asp.ne t

var jsonData = JsonConvert.DeserializeObject<Dictionary<string, string>>
(json_Incoming_fromServer);
foreach(var keyvalue in jsonData)
{

   textBox.text = keyvalue.Value; // this will only display the value of that
   // attribute / key 

}

thanks to EZI

answered Apr 16, 2017 at 15:28

Waheed Rafiq

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