C# get bios version from computer and laptop

namespace : System.Management

example:

C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\System.Management.dll

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.Management;

namespace GetBios
{    

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

        private void button1_Click(object sender, EventArgs e)
        {
            GetBiosInformation();
        }

        private void GetBiosInformation()
        {
            string relDt = "";
            try
            {
                ManagementObjectSearcher mSearcher = new ManagementObjectSearcher("SELECT SerialNumber, SMBIOSBIOSVersion, ReleaseDate FROM Win32_BIOS");
                ManagementObjectCollection collection = mSearcher.Get();
                foreach (ManagementObject obj in collection)
                {
                    lblBiosSerial.Text = (string)obj["SerialNumber"];
                    lblBiosVersion.Text = (string)obj["SMBIOSBIOSVersion"];
                    relDt = (string)obj["ReleaseDate"];
                    DateTime dt = ManagementDateTimeConverter.ToDateTime(relDt);
                    lblBiosDate.Text = dt.ToString("dd-MMM-yyyy");//date format
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
            }
        }
    }
}