How to convert UTF16 string to UTF8?

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I create a XML file. It took

XML

<?xml version="1.0" encoding="utf-16" ?>

but I want

XML

<?xml version="1.0" encoding="utf-8" ?>

How i convert it?

Here is my code.

I update my code. Now please look it. And warning msg is

HTML

DOMDocument::loadXML(): Document labelled UTF-16 but has UTF-8 content in Entity

C#

XmlDocument xmlDoc = new XmlDocument();

XmlElement xmlElmdetails = xmlDoc.CreateElement("details");
xmlDoc.AppendChild(xmlElmdetails);

XmlElement xmlName = xmlDoc.CreateElement("name");
xmlElmdetails.AppendChild(xmlName);
xmlName.InnerText = "Jack";

XmlElement xmlPhone = xmlDoc.CreateElement("phone");
xmlElmdetails.AppendChild(xmlPhone);

XmlElement xmlHome = xmlDoc.CreateElement("home");
xmlPhone.AppendChild(xmlHome);
xmlHome.InnerText = "9876543210";




 using (StringWriter sr = new StringWriter())
            {
                XmlWriterSettings xws = new XmlWriterSettings();
                xws.Indent = true;

                using (XmlWriter xtw = XmlTextWriter.Create(sr, xws))
                {
                    xmlDoc.WriteTo(xtw);
                }
                Response.Write(sr.ToString());
            }

Posted 20-May-14 2:03am

Member 9664591

Updated 20-May-14 2:06am

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lukeer · Answer 1 · 2014-05-20T02:26:00

Use the XmlWriterSettings.Encodeing property to use the encoding you want:

{
    XmlWriterSettings xws = new XmlWriterSettings();
    xws.Indent = true;
    xws.Encoding = Encoding.UTF8;

    // ...
}

This will cause your application to write UTF-8 encoded XML.

But UTF-8 already is the mentioned property's standard value. So the question remains how the UTF-16 encoded XML arose in the first place.
Does your application create it or do you get it from somewhere?

Kornfeld Eliyahu Peter · Answer 2 · 2014-05-20T02:22:00

Quote: XmlWriterSettings.Encoding[^]
The Encoding property only applies to the XmlWriter instances that are created either with the specified Stream or with the specified file name. If the XmlWriter instance is created with the specified TextWriter, the Encoding property is overridden by the encoding of the underlying TextWriter. For example, if this property is set to Unicode (UTF-16) for a particular XmlWriter, but the underlying writer is a StreamWriter (which derives from TextWriter) with its encoding set to UTF8, the output will be UTF-8 encoded.

String are utf-16 internally, so you have to change the encoding of your StringWriter...

Bernhard Hiller · Answer 3 · 2014-05-20T03:43:00

Solution 3

Response.Write(sr.ToString());

What's that Response? Looks like some web thingy.
Does it have an Encoding property? If so, set it properly.

Posted 20-May-14 3:43am

Bernhard Hiller

How to convert UTF16 string to UTF8?

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