Import csv file to database SQL server in C# windows application without header

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

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

        private void btnBrowse_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.DefaultExt = ".csv";
            ofd.Filter = "Comma Separated (*.csv)|*.csv" ;
            ofd.ShowDialog();
            txtFileName.Text = ofd.FileName;

        }

        private void btnClose_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void btnimport_Click(object sender, EventArgs e)
        {

            Cursor = Cursors.WaitCursor;

            DataTable imported_data = GetDataFromFile();  

            if (imported_data == null) return;           

            SaveImportDataToDatabase(imported_data);    

            MessageBox.Show("load data succ.....!");
            txtFileName.Text = string.Empty;
            Cursor = Cursors.Default;


        }

        private DataTable GetDataFromFile()
        {

            DataTable importedData = new DataTable();

            try
            {
                using (StreamReader sr = new StreamReader(txtFileName.Text))
                {


                    string header = sr.ReadLine();
                    if (string.IsNullOrEmpty(header))
                    {

                        MessageBox.Show("no file data");
                        return null;
                    }



                    string[] headerColumns = header.Split(',');
                    foreach (string headerColumn in headerColumns)
                    {
                        importedData.Columns.Add(headerColumn);
                    }



                    while (!sr.EndOfStream)
                    {

                        string line = sr.ReadLine();
                        if (string.IsNullOrEmpty(line)) continue;
                        string[] fields = line.Split(',');
                        DataRow importedRow = importedData.NewRow();

                        for(int i = 0; i < fields.Count(); i++)
                        {
                            
                            importedRow[i] = fields[i];

                        }

                        importedData.Rows.Add(importedRow);
                    }
                }


            }
            catch (Exception e)
            {
                Console.WriteLine("the file could not be read:");
                Console.WriteLine(e.Message);
            }

            return importedData;
        }

        private void SaveImportDataToDatabase(DataTable imported_data)   
        {

            using (SqlConnection conn = new SqlConnection("Data Source=HA-PC\\SQLEXPRESS;Initial Catalog=mydatabase;Integrated Security=True"))
            {

                conn.Open();
                foreach (DataRow importRow in imported_data.Rows)   
                {


                SqlCommand cmd = new SqlCommand("INSERT INTO imported_data (device_id,employee_id,status,date,time ) " +
                                                  "VALUES (@device_id,@employee_id,@status,@date,@time)", conn);
                    cmd.Parameters.AddWithValue("@device_id", importRow["device_id"]);
                    cmd.Parameters.AddWithValue("@employee_id", importRow["employee_id"]);
                    cmd.Parameters.AddWithValue("@status", importRow["status"]);
                    cmd.Parameters.AddWithValue("@date", importRow["date"]);
                    cmd.Parameters.AddWithValue("@time", importRow["time"]);
                    cmd.ExecuteNonQuery();
                }

            }
        }

       
    }
}