How to assign value to DateTime? field of object.

Thakerng Kruabkonto

I have declared Person class as below.

public class Person

{

public string Prefix { get; set; }

public string FirstName { get; set; }

public string LastName { get; set; }

public DateTime? DateOfBirth { get; set; }

}

I create an Person object.

Person _person = new Person { Prefix = "Mr", FirstName = "William", LastName = "Jonathan", DateOfBirth = DateTime.Now.AddYears(-29) };

Problem --> I got an error "Object reference not set to an instance of an object." in setting value to DateOfBirth.

Anybody help me? How to solved it?

Thank you.

Thakerng.

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Sanwar Ranwa7y ago
Accepted answer
Code is running properly
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp3
{
    public class Person
    {
        public string Prefix { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public DateTime? DateOfBirth { get; set; }
    }
    class Program
    {
        static void Main(string[] args)
        {

           Person _person = new Person { Prefix = "Mr", FirstName = "William",
               LastName = "Jonathan", DateOfBirth = DateTime.Now.AddYears(-29) };
            Console.WriteLine(_person.Prefix+ _person.DateOfBirth+ _person.FirstName +_person.LastName);
            Console.Read();
        }
    }
}
can you show the error messge ,where excatly the error
Thakerng Kruabkonto7y ago
Thank you for all.

I have re checked my code someting mistake.

Thank for guidance.

Thakerng.
Rajanikant Hawaldar7y ago
your code working for me somewhere your triying to access properties from object and object is null means memory not assigned to object check it by debugging,
use Exception Settings to identify exception
Anju7y ago
Could you please share more details for the issue as per initial review it appears to be fine.