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I am trying to read a message from serialport. I am reading it as bytes of data. I have a byte array which holding all the data bytes i read from serial port. My byte array holds a message string like this after converting into string.

\u0006\u0001\0d\o?\"\0$?##STA\r\nSystemLevel:Run\r\nstatus:1\r\nSensor Value:12.45\r\n................\r\nSTOP##

I look for certain byte pattern (for example start byte)from byte array once it matches converting everything to char string from that point of index to certain index length. since i know the length of the message i want convert. for example byte[25] to byte[185].

I just want to know which is the best way to read result values from the message string?? result values for example byte[28] to byte[32],byte[42] to byte[49]...etc.

Is it better to convert all required bytes to string and parse it?? or is it better to use several byte patterns to get the characters. which is the best method.

Here is a sample of my code that I used in a project where receiveMessage is a byte[] :

year = receiveMessage[4];
month = receiveMessage[5];
day = receiveMessage[6];
hour = receiveMessage[7];
minute = receiveMessage[8];
second = receiveMessage[9];
date = new DateTime(2000 + year, month, day, hour, minute, second);

WriteDBMessageLocation locationMessage = new WriteDBMessageLocation();
locationMessage.message = DATABASE_MESSAGE_TYPE.LOCATION;

locationMessage.trackTime = date;
locationMessage.currTime = DateTime.Now;

locationMessage.lattitude = new byte[4];
Array.Copy(receiveMessage, 11, locationMessage.lattitude, 0, 4);

locationMessage.longitude = new byte[4];
Array.Copy(receiveMessage, 15, locationMessage.longitude, 0, 4);
locationMessage.speed = receiveMessage[19];

locationMessage.courseStatus = new byte[2];
Array.Copy(receiveMessage, 20, locationMessage.courseStatus, 0, 2);

locationMessage.IMEI = byteState.Value.IMEI;
WriteDBAsync.ReadWriteFifo(WriteDBAsync.Mode.WRITE, locationMessage);```


Encoding.GetBytes Method (System.Text), C# Copy. using System; using System.Text; public class SamplesEncoding { public Your app might need to encode many input characters to a code page and process the In this case, the GetBytes version that supports byte arrays is the best choice. Consider using the Encoder.Convert method instead of GetByteCount. When we have a byte array, we do not just need to leave the data as a byte array. We can convert it to a string with ToBase64String. Here: We load a JPG image on the disk into a byte array, and then encode it as a string. This can be put in CSS or HTML files directly.

You can always do something with for loop, like this:

using System;
using System.Text;

namespace _ {
  class Q {
    public static void Main(string[] args) {
      string str = @"\u0006\u0001\0d\o?\""\0$?##STA\r\nSystemLevel:Run\r\nstatus:1\r\nSensor Value:12.45\r\n................\r\nSTOP##";
      byte[] bts = Encoding.UTF8.GetBytes(str);
      var g23to40 = getRange(bts, 22, 39);
      Console.WriteLine(Encoding.UTF8.GetString(g23to40));
    }
    public static byte[] getRange(byte[] a, int s, int e = -1) {
      if (e == -1) { e = a.Length-1; }
      if (e <= s) { return new byte[]{}; }
      byte[] r = new byte[e-s];
      int bi = 0;
      for (int i = s; i != e; i++) {
        if (i >= s && i <= e) {
          r[bi] = a[i];
          bi++;
        }
      }
      return r;
    }
  }
}

C# Convert String to Byte Array, This program allocates an array of bytes. These represent characters in ASCII. Next the ASCIIEncoding.ASCII.GetString method is used. Tip: You will need to� Unsigned Byte Array in C#. In C#.Net, we can create an unsigned byte array by using byte, byte is used to store only positive values between the range of 0 to 255 (Unsigned 8 bits integer). It occupies 1-byte memory for each element, if array size is 10, it will take 10 bytes memory. Declaration of a unsigned byte[] 1) Array declaration with

in my opinion:

  1. i would process it as byte array and remove header/checksum stuff/...

byte.Skip(..).Take(...)

  1. give that bytearray to a function, which converts to right string format, and does the over stuff.

if you search for stuff in the byte array: I guess you are not working with much data (100Mb+). Cause Linq isnt the fastet.

Byte<Span>

ist the faster one (.net Core)

and the fastest is found here:

byte[] array pattern search

(the Buffer.BlockCopy thing)

C# String To Byte Array, GetBytes() method converts a string into a byte array in C#. This article includes a ASCIIEncoding: Encodes Unicode characters as single 7-bit ASCII characters. What if we need to convert one encoding format to another? The Encoding.GetBytes() method converts a string into a byte array in C#. This article includes a code example of how to convert a C# string into a byte array. Tune in FREE to the Azure Virtual Conference starting Aug. 7 at 10am ET x

Convert String to Byte Array in C#, C# | Converting string to byte array: Here, we are going to learn how to This website uses cookies to ensure you get the best experience on our website. Note: In C#, the string contains two bytes per character; the method GetBytes( str); //printing characters with byte values for(int loop =0; loop<barr. Returns String. A string that contains the decoded bytes from the provided read-only span. Remarks. The GetString method is designed to optimize performance. Instead of creating a managed byte array and then decoding it, you can instead call this method without having to create any intermediate objects.

Converting array to string in mule 4, A = [1 2 3] How to: Convert an Array of Bytes into a String in Visual Basic. Jul 14, 2019 � * To convert String object to String array, first thing * we need to Java : How to convert Byte[] Array To String ; In Java best way to Convert File into a string format, and second, conversion of C# bytes into actual characters of string. New Byte Array using System.Buffer.BlockCopy - 0.2500048 seconds; IEnumerable<byte> using C# yield operator - 0.0625012 seconds; IEnumerable<byte> using LINQ's Concat<> - 0.0781265 seconds; I increased the size of each array to 1000 elements and re-ran the test: New Byte Array using System.Array.Copy - 1.0781457 seconds

5. Built-in Types — Python v3.1.5 documentation, That means that for a bytes or bytearray object b, b[0] will be an integer, while b[0: 1] will You can always convert a bytes object into a list of integers using list(b). The find() method should be used only if you need to know the position of sub. Alphabetic characters are those characters defined in the Unicode character� What would be the best way to fill a C# struct from a byte[] array where the data was from a C/C++ struct? The C struct would look something like this (my C is very rusty): typedef OldStuff { CHAR Name[8]; UInt32 User; CHAR Location[8]; UInt32 TimeStamp; UInt32 Sequence; CHAR Tracking[16]; CHAR Filler[12]; }

Comments
  • maybe you need LINQ?
  • Convert it to a string first and then parse the string. This will help to avoid char encoding issues. Otherwise you might have problems with characters that are encoded into multiple bytes (using UTF8 or whatever).
  • @MatthewWatson ok thanks for your suggestion will keep in mind.
  • it is better to copy only certain bytes and convert those to text. thank you.