C# Snippets: String to byte[ ] and byte[ ] to String

String to byte array:
public static byte[] StrToByteArray(string str)
{
    System.Text.ASCIIEncoding  encoding = new System.Text.ASCIIEncoding();
    return encoding.GetBytes(str);
}

Byte array to string:
public static string ByteArrayToStr(byte[] byteArray)
{
  System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
  return encoding.GetString(byteArray);
}