title: Query in json array/JObject
body: <p>My json:</p>
  
  <pre><code>"CustomData": [
    {
      "Key": "RegistrationWrx",
      "Value": "Wrx45687",
      "Id": 462,
    },
    {
      "Key": "IsConsentGiven",
      "Value": "True",
      "Id": 463,
    },
  </code></pre>
  
  <p>I use this to get some values:</p>
  
  <pre><code>string fetchResult = JsonConvert.SerializeObject(sidebar, Formatting.Indented);
  JObject rss = JObject.Parse(fetchResult);
  
  ConsentGiven = rss["RegistrationCase"]["CustomData"][1]["Value"].Value&lt;string&gt;(),
  </code></pre>
  
  <p>But i want to check the "Key" e.g. on "CustomData" and display the "Value". I think i need to do something like:</p>
  
  <pre><code>ConsentGiven = rss["RegistrationCase"]["CustomData"].Where(["Key"]=="IsConstantGiven")["Value"].Value&lt;string&gt;(),
  </code></pre>