[RESOLVED] new operator problem?

[Migeria]

namespace ...
{
public partial class Form1 : Form
{
.
.
 private void textBox1_DragDrop(object sender, DragEventArgs e){
    string[] failas = (string[])e.Data.GetData(DataFormats.FileDrop);
    foreach (string failas_ in failas){
      Failas cfailas = new Failas(); //////////////////////////////////////////////////
      cfailas.setfile(failas_); //////////////////////////////////////////////////
      label2.Text = cfailas.failas;  ////////////////////////////////////////////////// <<<<<<< EVERYTHING IS OK
      textBox1.Text = cfailas.split_filename(failas_);
    }}
.
.
 string password = "";
 private void button2_Click(object sender, EventArgs e) {
  if (password == "")  {
    password = textBox2.Text;
    textBox2.Clear();
    label2.Text = "Pakartokite slaptažodį:";
  }
  else if (label2.Text == "Pakartokite slaptažodį:" && password == textBox2.Text){
    Failas cfailas = new Failas(); //////////////////////////////////////////////////
    label1.Text = cfailas.failas;  ////////////////////////////////////////////////// <<<<<<< IS EMPTY
    textBox2.Clear();
    password.Remove(0);
  }}
}

class Failas
{
 public string failas; //////////////////////////////////////////////////
 public void setfile(string a){ failas = a;} //////////////////////////////////////////////////
 public string split_filename(string a){
  string[] b;
  b = a.Split('\\');
  return b[b.Length - 2] + "\\" + b[b.Length - 1];
 }
}
}

Why variable "failas" is empty in "Failas" class when I set it in one function, but read from other?