temp1.cs

new Thread(() =>
{
  for (var ine = 0; ine < 2; ine++)
  {
    if (ine == 1)
      byteprob = Instruments_for_bytes.Reverse(byteprob)
    var bytestring = BitConverter.ToString(ine == 0 ? byteprob : Instruments_for_bytes.Reverse(byteprob));
    result = File.ReadAllBytes(textBox3.Text);
    
    for (var i = 0; i <= 7; i++)
    {
      progressBar1.Invoke(() => progressBar1.Value += 6);
      if (i > 0)
        bytestream = Instruments_for_bytes.ShiftLeft(bytestream);
      var k = Instruments_for_bytes.IndexOf(bytestream, byteprob);
      
      if (k[0] > -1)
      {
        var sb = new StringBuilder();
        sb.Append(Environment.NewLine);
        var values = new[]
        {
          $"Паттерн байт = {bytestring}",
          $"Период = {k[0]}",
          $"Байтовый сдвиг = {k[1]}",
          $"Битовый сдвиг: {i}",
          $"Разворот байт: {(ine == 0 ? "Нет" : "Есть")}"
        };
        sb.AppendJoin(Environment.NewLine, values);
        richTextBox1.Invoke(() =>
        {
          richTextBox1.Text += sb.ToString();
          progressBar1.Value = 100;
        });
        result = new byte[bytestream.Length - k[1]];
        Array.Copy(ine == 0 ? Instruments_for_bytes.Reverse(bytestream) : bytestream, k[1], result, 0, result.Length);
        finded = true;
        break;
      }
      else if (ine == 1 && i == 7)
      {
        progressBar1.Invoke(() =>
        {
          progressBar1.Value = 100;
          richTextBox1.Text += string.Concat(Environment.NewLine, "Паттерн не найден");
        });
        break;
      }
    }
  }).Start();