Reading a specific file and binding the data of that file to the gridview

Aspx:

 <asp:GridView ID="GridView1" runat="server">
    </asp:GridView>

CodeBehind:

    protected void Page_Load(object sender, EventArgs e)
    {
        
        IList<Data> list = new List<Data>();
        string path = @"D:\TestData.trx";
        using (StreamReader sr = new StreamReader(path))
        {
            string line;
            string[] row;
            while ((line = sr.ReadLine()) != null)
            {
                row = line.Split(',');
                if (row[0] == "#data")
                {
                    Data obj = new Data();

                    obj.ColumnA = row[1];
                    obj.ColumnB = row[2];
                    obj.ColumnC = row[3];
                    list.Add(obj);
                }
            }
        }
        GridView1.DataSource = list;
        GridView1.DataBind();
      

    }

In class:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

public class Data
{
    public string ColumnA { get; set; }
    public string ColumnB { get; set; }
    public string ColumnC { get; set; }
  
}

TestData.trx is .trx file that I have taken. It conatins the data with comma seperated.

Thanks & Regards