How to get values out of JSON string array

Question

I am passing the following array via jQuery ajax and JSON stringify...

"sessionsArray":[{"eventNum":"15200","title":"Integrity"},{"eventNum":"15210","title":"Estate and Probate"}]

to a c#/.NET web service. I need to loop over and extract the values but I'm having fuzzy brain today and cannot get the syntax correct. Help please?

[WebMethod(EnableSession = true)]
    public string saveRegistration(Dictionary <string, string> sessionsArray)

List<string[]> eventsList = new List<string[]>();

foreach (var eventItem in sessionsArray)
{
    eventsList.Add(new[] { eventItem.Key, eventItem.Value });
}

Thanks.

possible duplicate of [Deserialize JSON with C#](http://stackoverflow.com/questions/7895105/deserialize-json-with-c-sharp) — TyCobb, Jan 23 '15 at 17:41
Sorry, the only thing the same is the JSON string. I still don't see how to handle when the value is passed into my web service. I see some suggest using Dictionary, others something else. No one seems to agree. — Connie DeCinko, Jan 23 '15 at 17:56

score 0 · Answer 1 · answered Jan 23 '15 at 18:11

0

I got it to work.

Dictionary <string, string>[] sessionsArray

answered Jan 23 '15 at 18:11

Connie DeCinko

996
5
19
39

2

instead of just giving one liner as answer, include description also? – HaveNoDisplayName Jan 23 '15 at 19:43

score 0 · Answer 2 · answered Jan 23 '15 at 18:14

I guess I would define a model first for my objects like the following:

public class SessionsArray
{
 public string eventNum { get; set; }
 public string title { get; set; }
}

public class RootObject
{
  public List<SessionsArray> sessionsArray { get; set; }
}

Then I would parse the json with JSON.NET:

string json = "{'sessionsArray':[{'eventNum':'15200','title':'Integrity'},{'eventNum':'15210','title':'Estate and Probate'}]}";
var root = JsonConvert.DeserializeObject<RootObject>(json);

score 0 · Answer 3 · answered Jan 24 '15 at 07:29

0

You can use Newtonsoft.Json as follow :

var jsonData = JObject.Parse(sessionArray); Then you have JObject. You can cast this to JArray and you can use for loop to get data.

for(int i = 0 ; i<(JArray)jsonData.Count;i++)
{
var data = jsonData[i];
}

answered Jan 24 '15 at 07:29

OnurBulbul

433
5
9

How to get values out of JSON string array

3 Answers3