using System;

using System.Collections.Generic;

using Newtonsoft.Json;

​

public class Program

{

    public static void Main(string[] args)

    {

        //hard-coded JSON requires the quote marks to be escaped, hence the \ (backslashes). otherwise this is identical to the data posted in the question, and will be deserialised as such.

        string json = "[{    \"Id\": 25,    \"CreateDate\": \"2020-09-26T12:25:27.917\",    \"Title\": \"Second TV Repair\",    \"categoryTitle\": \"Tv Repair\",    \"FirstName\": \"Sample FirsName\",    \"LastName\": \"Sample LastName\"} ]";

        var result = JsonConvert.DeserializeObject<List<ServicemanHistory>>(json);

        foreach (var item in result)

            Console.WriteLine(item.Title);

    }

}

​

public class ServicemanHistory

{

    public int Id { get; set; }

    public DateTime CreateDate { get; set; }

    public string Title { get; set; }

    public string categoryTitle { get; set; }

    public string FirstName { get; set; }

    public string LastName { get; set; }

}