How to use Open file Dialog??

how to use file dialog...or browze button.

browze button used to select particular file..

we can implement the same in C# by following code

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;

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

        private void button1_Click(object sender, EventArgs e)
        {
            string DataFile = string.Empty;
            OpenFileDialog Browze= new OpenFileDialog();
            Browze.Multiselect = false;
            Browze.Title = "Select The Data File [*.csv]";
            Browze.DefaultExt = ".csv";
            Browze.ShowDialog();
            if (Browze.ValidateNames)
            {
                DataFile = Browze.FileName.ToString();
                textBox1.Text = DataFile;
            }
        }

       
    }
}