Find a value of all occurrences from the json string in c#

Question

1.00/5 (1 vote)

See more:

CSS

I have a JSON object with some data and I want to get all the values of each occurrence of specific key name. Is there any predefined method to search for a key in JSON object for all occurrences or need to write user defined method?

Any help would be greatly appreciable.

this is sample json object and I want to get all the values with key 'className' [{"id":"23","name":"sunny","className":"2","class" :{"className":"1","class2" :{"className":"3","class3" :{"className":"4"}}}}]

Posted 25-Nov-14 18:57pm

Satish kumar Vadlavalli

Add a Solution

2 solutions

Solution 2

You can deserialize json data to a strongly type by using newtonsoft.After that you can filter by using Linq
http://stackoverflow.com/questions/5979434/deserializing-json-array-into-strongly-typed-net-object[^]
Hope this helps

Posted 25-Nov-14 21:34pm

Jameel VM

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Satish kumar Vadlavalli · Accepted Answer · 2014-11-26T21:16:00

XML

This can be achieved with LINQ to JSON by using the SelectTokens method with a recursive path ..className


<pre lang="cs">class Program
{
    static void Main(string[] args)
    {
        JObject jObject = JObject.Parse(jsonString);

        // You would use this because you have an array.
        // JArray jObject = JArray.Parse(jsonArray);

        // .. - recursive descent
        var classNameTokens = jObject.SelectTokens(&quot;..className&quot;);
        var values = classNameTokens.Select(x =&gt; (x as JValue).Value);
    }

    static string jsonString = @&quot;{&#39;id&#39;:&#39;23&#39;,&#39;name&#39;:&#39;sunny&#39;,&#39;className&#39;:&#39;2&#39;,&#39;class&#39; :{&#39;className&#39;:&#39;1&#39;,&#39;class2&#39; :{&#39;className&#39;:&#39;3&#39;,&#39;class&#39; :{&#39;className&#39;:&#39;4&#39;}}}}&quot;;
    static string jsonArray = @&quot;[{&#39;id&#39;:&#39;23&#39;,&#39;name&#39;:&#39;sunny&#39;,&#39;className&#39;:&#39;2&#39;,&#39;class&#39; :{&#39;className&#39;:&#39;1&#39;,&#39;class2&#39; :{&#39;className&#39;:&#39;3&#39;,&#39;class&#39; :{&#39;className&#39;:&#39;4&#39;}}}}]&quot;;
}</pre>

http://stackoverflow.com/questions/27141419/find-a-value-of-all-occurrences-from-the-json-string-in-c-sharp[^]