I have to write the below binary array into a file:
byte[] data = new byte[] { 0x55, 0xAA, 0x02};
I want to put the exact data into the file (55,AA,02). Please let me know how to do it.
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Possible duplicates: stackoverflow.com/questions/381508/…, stackoverflow.com/questions/128674/…, stackoverflow.com/questions/224239/…Cody Gray– Cody Gray ♦2010-12-23 08:04:55 +00:00Commented Dec 23, 2010 at 8:04
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Use BitConverter.ToString(data) to create a string that you can write to a text file.Hans Passant– Hans Passant2010-12-23 11:12:16 +00:00Commented Dec 23, 2010 at 11:12
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4 Answers
You can use the Stream.Write(byte[] buffer) overload.
And even easier,
System.IO.File.WriteAllBytes("fileName", data);
3 Comments
user209293
When i use the aboe function some non readable characters are displayed in the file. I want the data to be displayed exactly.
Andrei Sosnin
It's because you're writing characters, which are not printable. 0x02 is not a 'printable' character code. You want to use a hex editor to view your output file and verify it wrote data exactly.
Henk Holterman
@user209293 Your data has non-printable codes when viewed a s ASCII/ANSI/UTF8. So you'll have to more precise in what result you want. Currently your comments contradict the req in the question.
Please try the following:
FileStream fs = new FileStream(Application.StartupPath + "\\data.bin", FileMode.Create);
BinaryWriter bw = new BinaryWriter(fs);
byte[] data = new byte[] { 0x55, 0xAA, 0x02 };
bw.Write(data);
bw.Close();
fs.Close();
1 Comment
Rajesh Kumar G
open the output file in microsoft visual studio,u will see the result that what do you want in binary format
Iirc you can use
string content = BitConverter.ToString(data);
to retrieve a string containing the content and then write that string to the File you want.
Comments
You can use File.WriteAllBytes(string path, byte[] bytes).
3 Comments
user209293
When i use the aboe function some non readable characters are displayed in the file. I want the data to be displayed exactly
Darin Dimitrov
@user209293, use a hex editor. Don't expect a text editor to display you non printable characters like 0x02.
Botz3000
If you don't want to write the exact data, but rather the string representation of your byte values into a file, maybe you should rephrase your question.