C# Verileri not defterine yazdırma

using System; 
  using System.IO; 
  using System.Collections.Generic; 
  using System.ComponentModel; 
  using System.Data; 
  using System.Drawing; 
  using System.Linq; 
  using System.Text; 
  using System.Threading.Tasks; 
  using System.Windows.Forms; 
   
  namespace WindowsFormsApplication1 
  { 
      public partial class Form1 : Form 
      { 
          public Form1() 
          { 
              InitializeComponent(); 
          } 
   
          private void button1_Click(object sender, EventArgs e) 
          { 
          } 
   
          private void button2_Click(object sender, EventArgs e) 
          { 
              FileStream fs = new FileStream(@"C:\Deneme .txt", FileMode.OpenOrCreate, FileAccess.Write); 
              StreamWriter sw = new StreamWriter(fs); 
              sw.WriteLine(textBox1.Text); 
              sw.WriteLine(textBox2.Text); 
              sw.Flush(); 
              sw.Close(); 
              fs.Close(); 
          } 
   
          private void textBox1_TextChanged(object sender, EventArgs e) 
          { 
   
          } 
      } 
  }