Binary To Corresponding ASCII String Conversion

Question

Hi i was able to convert a ASCII string to binary using a binarywriter .. as 10101011 . im required back to convert Binary ---> ASCII string .. any idea how to do it ?

What's wrong with Convert.ToBase64String(data)? Why are you shoving the bytes into a stream, and reading those bytes back again from that stream? — R. Martinho Fernandes, May 15 '11 at 13:46
`System.Text.ASCIIEncoding.ASCII.GetString` giving me back the binary in string not Text Representation :-S — Sudantha, May 15 '11 at 13:50
**What do you want to do?** Just say what do you have, and what do you want. If you're using ToBase64String, **of course the result will be in base-64**. — R. Martinho Fernandes, May 15 '11 at 13:50
I you're trying to get banned from asking questions, you're a great job. Stop asking the same thing again and again! — Shadow The GPT Wizard, May 15 '11 at 13:51
@Martinho I have a Binary String `'101010'` -> Need `'ABC'` representation of it ! — Sudantha, May 15 '11 at 13:53
@Sudantha how exactly `101010` is `ABC`? If you'll describe the algorithm maybe someone can help you implement it. — Shadow The GPT Wizard, May 15 '11 at 13:54
@Sudantha - Do you have a binary string "01001101" or a byte array? Your question says it is already a byte array; thus GetString... if you need to convert the string representation of binary in to a byte array then that is a different issue. — Chris Baxter, May 15 '11 at 13:55
@Shadow - `010000010100001001000011` --> `ABC` - NOW HAPPY ? — Sudantha, May 15 '11 at 13:55
@Coder - Thats the exact point ! i have a `String` .. how to take it exactly to a `byte[]` ? — Sudantha, May 15 '11 at 13:57
http://www.dreamincode.net/code/snippet2206.htm algo i used to create the binary string — Sudantha, May 15 '11 at 13:58
Calgary beat me to it, see your original question for the almost same code just with some error handling. — Shadow The GPT Wizard, May 15 '11 at 14:13
From your multiple re-tries a this, your first sentence is wrong. A binarywriter does not produce a _string_ of `0` and `1`s — H H, May 15 '11 at 14:19

score 23 · Accepted Answer · answered May 15 '11 at 14:06

23

This should do the trick... or at least get you started...

public Byte[] GetBytesFromBinaryString(String binary)
{
  var list = new List<Byte>();

  for (int i = 0; i < binary.Length; i += 8)
  {
    String t = binary.Substring(i, 8);

    list.Add(Convert.ToByte(t, 2));
  }

  return list.ToArray();
}

Once the binary string has been converted to a byte array, finish off with

Encoding.ASCII.GetString(data);

So...

var data = GetBytesFromBinaryString("010000010100001001000011");
var text = Encoding.ASCII.GetString(data);

answered May 15 '11 at 14:06

Chris Baxter

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Thanks a Lot Coder.. Exactly what i needed and working awesomely ! .. i was trying whole day with a blackout and finally !! thanks a lot ! :D – Sudantha May 15 '11 at 14:11
@Sudantha: I have merged your two identical questions; you might want to re-accept this answer (it was accepted on the other question). – balpha May 15 '11 at 14:56
it works thank you. my code is 7 length so i only change 8 to 7. – matasoy Nov 05 '17 at 13:15

Alex Aza · Answer 2 · 2011-05-15T04:31:28.163

7

If you have ASCII charters only you could use Encoding.ASCII.GetBytes and Encoding.ASCII.GetString.

var text = "Test";
var bytes = Encoding.ASCII.GetBytes(text);
var newText = Encoding.ASCII.GetString(bytes);

edited May 15 '11 at 04:31

answered May 15 '11 at 04:23

Alex Aza

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score 3 · Answer 3 · answered May 15 '11 at 04:18

Here is complete code for your answer

FileStream iFile = new FileStream(@"c:\test\binary.dat",
FileMode.Open);

long lengthInBytes = iFile.Length;

BinaryReader bin = new BinaryReader(aFile);

byte[] byteArray = bin.ReadBytes((int)lengthInBytes);

System.Text.Encoding encEncoder = System.Text.ASCIIEncoding.ASCII;

string str = encEncoder.GetString(byteArray);

score 1 · Answer 4 · edited May 23 '17 at 12:26

1

Take this as a simple example:

public void ByteToString()
{
   Byte[] arrByte = { 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 };

   string x = Convert.ToBase64String(arrByte);
}

This linked answer has interesting details about this kind of conversion:

binary file to string

edited May 23 '17 at 12:26

Community

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1

answered May 15 '11 at 04:16

Leniel Maccaferri

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HI leniel im having a string how to convert it to `byte[]` i used `Encoding.ASCHII` .... but it gives a junk ~ – Sudantha May 15 '11 at 04:21

score 0 · Answer 5 · answered May 15 '11 at 14:12

Sometimes instead of using the built in tools it's better to use "custom" code.. try this function:

public string BinaryToString(string binary)
{
    if (string.IsNullOrEmpty(binary))
        throw new ArgumentNullException("binary");

    if ((binary.Length % 8) != 0)
        throw new ArgumentException("Binary string invalid (must divide by 8)", "binary");

    StringBuilder builder = new StringBuilder();
    for (int i = 0; i < binary.Length; i += 8)
    {
        string section = binary.Substring(i, 8);
        int ascii = 0;
        try
        {
            ascii = Convert.ToInt32(section, 2);
        }
        catch
        {
            throw new ArgumentException("Binary string contains invalid section: " + section, "binary");
        }
        builder.Append((char)ascii);
    }
    return builder.ToString();
}

Tested with 010000010100001001000011 it returned ABC using the "raw" ASCII values.

Binary To Corresponding ASCII String Conversion

5 Answers5

Linked

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