لطفا کد زیر را برایم تحلیل کنید
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;


namespace Ontology_Run
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
try
{
long startTick = 0;
long endTick = 0;
int w = 0;
long tick = 0;
startTick = DateTime.Now.Ticks;
StreamReader SR = new StreamReader("Onto.txt");
SR.Read();
SR.Close();
endTick = DateTime.Now.Ticks;
tick = (endTick - startTick)/100;
if (tick==0)
{
tick = 100;
}
MessageBox.Show("Time(MS) Ontology = " + tick);

}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}