using System;

using System.Collections.Generic;

​

public class Program

{   

    public static void Main()

    {

        var dict = new Dictionary<string,object>();

        dict.Add("f_name","steve");

        dict.Add("age_in_years","36");

        dict.Add("isNot_a-Monster",1);

        var human = new Human(dict);

        Console.WriteLine(human.Name);

        Console.WriteLine(human.Age + 2);

        Console.WriteLine(human.LikesDogs ? "this dudes alright" : "probably a serial killer");     

    } 

}

​

public class Human

{

    public string Name {get;set;}

    public int Age {get;set;}

    public bool LikesDogs {get;set;}

    public Human(Dictionary<string,object> valuesWeGotFromSqlHelpers)

    {

        if(HelperMethods.TryParseValueFromDictionary<string>(valuesWeGotFromSqlHelpers,"f_name", true, out string name))

        {           

            Name = name;

        }

        Age = HelperMethods.ParseValueFromDictionary<int>(valuesWeGotFromSqlHelpers,"age_in_years", false);

        LikesDogs = HelperMethods.ParseValueFromDictionary<bool>(valuesWeGotFromSqlHelpers,"isNot_a-Monster", false);

    }

}

public static class HelperMethods

{

    public static T ParseValueFromDictionary<T>(Dictionary<string,object> dictionaryToSearch, string valueToLookFor, bool blowUpOnFailure)

    {

        if(dictionaryToSearch.ContainsKey(valueToLookFor))

        {

            try

            {           

                if(typeof(T) == typeof(string))

                {

                    return (T) dictionaryToSearch[valueToLookFor];

                }

                return (T)Convert.ChangeType(dictionaryToSearch[valueToLookFor], typeof(T));

            }       

            catch{}         

        }

        if (blowUpOnFailure)

        {

            var Zero = 10-10;

            _ = 1/Zero;

        }

        return default(T);  

    }

    public static bool TryParseValueFromDictionary<T>(Dictionary<string,object> dictionaryToSearch, string valueToLookFor, bool blowUpOnFailure, out T returnValue)

    {

        if(dictionaryToSearch.ContainsKey(valueToLookFor))

        {

            try

            {   

                if(typeof(T) == typeof(string))

                {

                    returnValue = (T)dictionaryToSearch[valueToLookFor];

                    return true;

                }

                returnValue = (T)Convert.ChangeType(dictionaryToSearch[valueToLookFor], typeof(T));

                return true;

            }       

            catch{}         

        }

        if (blowUpOnFailure)

        {

            var Zero = 10-10;

            _ = 1/Zero;

        }

        returnValue = default(T);   

        return false;       

    }

}