using System.Text.RegularExpressions;
using System.Collections.Generic;
public static void Main()
var entity = new StudentEntity();
Console.WriteLine(entity.studentStatusChanged);
entity.SetStudentStatus("set");
Console.WriteLine(entity.studentStatusChanged);
public class StudentEntity {
public string studentId { get; set; }
public string studentStatus { get; set; }
public DateTime studentStatusChanged { get; set; }
public void SetStudentStatus(string status) {
studentStatusChanged = DateTime.Now;