Create Json dynamically in c#

Question

I need to create a Json object dynamically by looping through columns. so declaring an empty json object then add elements to it dynamically.

eg:

List<String> columns = new List<String>{"FirstName","LastName"};  var jsonObj = new {};  for(Int32 i=0;i<columns.Count();i++)     jsonObj[col[i]]="Json" + i; 

And the final json object should be like this:

jsonObj={FirstName="Json0", LastName="Json1"}; 

Answer 1

[TestFixture] public class DynamicJson {     [Test]     public void Test()     {         dynamic flexible = new ExpandoObject();         flexible.Int = 3;         flexible.String = "hi";          var dictionary = (IDictionary<string, object>)flexible;         dictionary.Add("Bool", false);          var serialized = JsonConvert.SerializeObject(dictionary); // {"Int":3,"String":"hi","Bool":false}     } }