protected void btnDeserialize_Click(object sender, EventArgs e)
 {
     fs = new FileStream("D://emp.txt", FileMode.Open, FileAccess.Read);
     e1 = (Employee)bfmt.Deserialize(fs);
     txtEno.Text = e1.eno.ToString();
    txtEname.Text = e1.ename.ToString();
    txtSalary.Text = e1.salary.ToString();
 }
 protected void btnSerialize_Click(object sender, EventArgs e)
 {
  int eno = int.Parse(txtEno.Text);
     string ename = txtEname.Text;
     double salary =double.Parse(txtSalary.Text);
     e1 = new Employee(eno, ename, salary);
     fs = new FileStream("D://emp.txt", FileMode.Create, FileAccess.Write);
     bfmt.Serialize(fs, e1);
     fs.Flush();
     fs.Close();
     Response.Write("Data is Serialized");
     txtEno.Text = " ";
     txtEname.Text = " ";
     txtSalary.Text = " ";
 }