How to convert a string to UTF8?

Question

I have a string that contains some unicode, how do I convert it to UTF-8 encoding?

i think this helps to you. http://stackoverflow.com/questions/497782/how-to-convert-a-string-from-utf8-to-ascii-single-byte-in-c — Bishan, Jan 03 '12 at 04:04

score 22 · Accepted Answer · answered Jan 03 '12 at 04:07

22

This snippet makes an array of bytes with your string encoded in UTF-8:

UTF8Encoding utf8 = new UTF8Encoding();
string unicodeString = "Quick brown fox";
byte[] encodedBytes = utf8.GetBytes(unicodeString);

answered Jan 03 '12 at 04:07

Sergey Kalinichenko

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Why not just use `Encoding.UTF8.GetBytes` rather than `new`ing up another encoder? – Jesse C. Slicer Jan 03 '12 at 04:10
1

@JesseC.Slicer This snippet is from one of [Microsoft's examples for the UTF8Encoding class](http://msdn.microsoft.com/en-us/library/system.text.utf8encoding.aspx). I am not 100% certain why they choose to do it this way, but I would assume it's for thread safety (they mention that instance members are not guaranteed to be thread safe, but this is only my guess). – Sergey Kalinichenko Jan 03 '12 at 04:17
@CAS I have no idea, please ask a separate question. – Sergey Kalinichenko Aug 27 '19 at 14:07

score 4 · Answer 2 · edited Dec 02 '19 at 16:01

4

Try this function, this should fix it out-of-box. You may need to fix naming conventions though.

private string UnicodeToUTF8(string strFrom)
{
    byte[] bytSrc;
    byte[] bytDestination;
    string strTo = String.Empty;

    bytSrc = Encoding.Unicode.GetBytes(strFrom);
    bytDestination = Encoding.Convert(Encoding.Unicode, Encoding.ASCII, bytSrc);
    strTo = Encoding.ASCII.GetString(bytDestination);

    return strTo;
}

edited Dec 02 '19 at 16:01

CarenRose

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answered Oct 16 '15 at 13:48

Arvin

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Use this to make your strings 1. XML compatible before saving to database, 2. (or) CSV compatible before exporting to CSV – Arvin Oct 16 '15 at 13:53

score 3 · Answer 3 · answered Mar 14 '17 at 10:13

3

This should be with the minimum code:

byte[] bytes = Encoding.Default.GetBytes(myString);
myString = Encoding.UTF8.GetString(bytes);

answered Mar 14 '17 at 10:13

Habeeb

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score 2 · Answer 4 · answered Sep 02 '13 at 08:55

2

try to this code

 string unicodeString = "Quick brown fox";
 var bytes = new List<byte>(unicodeString);
        foreach (var c in unicodeString)
            bytes.Add((byte)c);
        var retValue = Encoding.UTF8.GetString(bytes.ToArray());

answered Sep 02 '13 at 08:55

Shyam sundar shah

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How to convert a string to UTF8?

4 Answers4

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