Custom Sorting in DataGridView by using Sort Compare Event

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.Collections;

namespace MyWinApp

public partial class Form1 : Form

DataTable dt;

public Form1()

dt = null;

private void Form1_Load(object sender, EventArgs e)

dt = new DataTable("Employees");

DataColumn dc = dt.Columns.Add("EmpNo", typeof(Double));

dt.Columns.Add("EmpName", typeof(String));

dt.Columns.Add("DateofJoining", typeof(String));

DataRow row1 = dt.NewRow();

row1["EmpNo"] = 1937;

row1["EmpName"] = "Piyush";

DateTime DT1 = DateTime.Now;

row1["DateofJoining"] = Convert.ToString(DT1);

DataRow row2 = dt.NewRow();

row2["EmpNo"] = 1938;

row2["EmpName"] = "Sanjib";

DateTime DT2 = DateTime.Now.AddDays(12);

row2["DateofJoining"] = Convert.ToString(DT2);

DataRow row3 = dt.NewRow();

row3["EmpNo"] = 1939;

row3["EmpName"] = "Bala";

DateTime DT3 = DateTime.Now.AddHours(05).AddYears(07);

row3["DateofJoining"] = Convert.ToString(DT3);

DataRow row4 = dt.NewRow();

row4["EmpNo"] = 1940;

row4["EmpName"] = "Manas";

DateTime DT4 = DateTime.Now.AddMonths(03);

row4["DateofJoining"] = Convert.ToString(DT4);

private void button1_Click(object sender, EventArgs e)

dataGridView1.VirtualMode = false;

dataGridView1.Columns["DateofJoining"].SortMode = DataGridViewColumnSortMode.Programmatic; //dataGridView1.Columns["DateofJoining"].DefaultCellStyle.Format = "G";

private void button2_Click(object sender, EventArgs e)

Application.Exit();

private void dataGridView1_SortCompare(object sender, DataGridViewSortCompareEventArgs e)