C#

void Copier(String src, String dest) {
  using (FileStream srcfile = new FileStream(src, FileMode.Open, FileAccess.Read)) {
    using (FileStream destfile = new FileStream(dest, FileMode.CreateNew, FileAccess.Write)){
      byte[] buffer = new byte[16 * 1024];
      Int32 bytesRead;
      while((bytesRead = srcfile.Read(buffer, 0, buffer.Length)) != 0 ){
        destfile.Write(buffer, 0, bytesRead);
      }
    }
  }
}

int[] ggg = new int[5];
ggg = networks.layers[i].noron[j].sbaglanti;
int[] ggg1 = (int[]) ggg.Clone();
Array.Sort(ggg);

this.textBox3.Enter += new System.EventHandler(this.GenericTextBox_Enter);
this.textBox2.Enter += new System.EventHandler(this.GenericTextBox_Enter);
this.textBox1.Enter += new System.EventHandler(this.GenericTextBox_Enter);

private void GenericTextBox_Enter(object sender, EventArgs e)
{
    MessageBox.Show(((TextBox)sender).Name);
}

this.textBox3.Enter += GenericTextBox_Enter;
this.textBox2.Enter += GenericTextBox_Enter;
this.textBox1.Enter += GenericTextBox_Enter;