How to get the information of encoding in a xml file using c#?
<?xml version="1.0" encoding="iso-8859-1"?>
<?xml version="1.0" encoding="Windows-1252"?>
I know how to read in the elements and attributes...
But I have to make a definition by cases in my deserialization method:
Depending on the encoding type of the xml I have to use encoding_windows or encoding_utf for StreamReader
var encoding_windows = Encoding.GetEncoding("Windows-1252");
var encoding_utf = Encoding.GetEncoding("utf-8");
var sr = new StreamReader(current_file, encoding_windows, true);
As your are using StreamReader try this :
var sr = new StreamReader(current_file);
var encodingCurrentFile = sr.CurrentEncoding.EncodingName;
Console.WriteLine(encodingCurrentFile);
encodingCurrentFile is your current encoding name.
Related
I have used XDocument to create simple xml document.I have created document with XDocument and XDeclaration.
XDocument encodedDoc8 = new XDocument(new XDeclaration("1.0", "utf-8", "yes"),
new XElement("Root", "Content"));
If i save this document to file means the encoding type is not changed.
using (TextWriter sw = new StreamWriter(#"C:\sample.txt", false)){
encodedDoc8.Save(sw);
}
Output:
<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<Root>Content</Root>
But,if I use XDocument's WriteTo method to print the xml means encoding type is changed.
using (XmlWriter writ = XmlWriter.Create(Console.Out))
{
encodedDoc8.WriteTo(writ);
}
Output:
<?xml version="1.0" encoding="IBM437" standalone="yes"?><Root>Content</Root>
Why this happened?.Please update your answers.Thanks in advance.
If you look at the reference source for XmlWriter.Create, the chain of calls would eventually lead to this constructor:
public XmlTextWriter(TextWriter w) : this() {
textWriter = w;
encoding = w.Encoding;
xmlEncoder = new XmlTextEncoder(w);
xmlEncoder.QuoteChar = this.quoteChar;
}
The assignment encoding = w.Encoding provides an explanation to what is happening in your case: the Encoding setting of the Console.Out text writer is copied to the encoding setting of the newly created XmlTextWriter, replacing the encoding that you supplied in the XDocument.
I'm developing a web app with C# and MVC4. Currently I'm working in converting string vars to SqlXml files. I have a XML file with this structure:
<?xml version="1.0" encoding="utf-8"?>
<cfdi:Comprobante xsi:schemaLocation="http://www.sat.gob.mx/cfd/3 http://www.sat.gob.mx/sitio_internet/cfd/3/cfdv32.xsd http://www.sat.gob.mx/TimbreFiscalDigital http://www.sat.gob.mx/TimbreFiscalDigital/TimbreFiscalDigital.xsd" xmlns:tfd="http://www.sat.gob.mx/TimbreFiscalDigital" version="3.2" xmlns:cfdi="http://www.sat.gob.mx/cfd/3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
</cfdi:Comprobante>
I'm converting the above file to string successfully and then I'm usign the following code that converts a string to a SqlXML.
cfdiDocumento.CFDIXML = Serializar.XMLToSqlXml(comprobante);
Where cfdiDocumento.CFDIXML is a SqlXml var, Serializar.XMLToSqlXml(comprobante) method receives a string and executes the following code:
public static SqlXml XMLToSqlXml(string xmlString)
{
SqlXml sqlXmlFiltro = null;
if (xmlString != null)
{
StringReader sr = new StringReader(xmlString);
XmlReaderSettings settings = new XmlReaderSettings();
settings.ConformanceLevel = ConformanceLevel.Auto;
XmlReader reader0 = XmlReader.Create(sr, settings);
sqlXmlFiltro = new SqlXml(reader0);
}
return sqlXmlFiltro;
}
When the code finishes successfully, the file is correct but is removing the xml header
<?xml version="1.0" encoding="utf-8"?>
The question is: How do I preserve the xml header when convierting to SqlXml var?
If you cannot change the type of your SqlXml attribute, you could try converting the SqlXml to xml document to append xml declaration and get the outer xml:
public string SqlXmlToString(SqlXml sqlXml)
{
XmlDocument doc = new XmlDocument();
doc.Load(sqlXml.CreateReader());
// Create XML declaration with your encoding.
XmlDeclaration xmldecl;
xmldecl = doc.CreateXmlDeclaration("1.0", null, null);
xmldecl.Encoding = "UTF-8";
// Add to the document the created declaration
XmlElement root = doc.DocumentElement;
doc.InsertBefore(xmldecl, root);
return doc.OuterXml;
}
Hope this is helpfully
I've a class correctly defined and after serialize it to XML I'm getting no encoding.
How can I define encoding "ISO-8859-1"?
Here's a sample code
var xml = new XmlSerializer(typeof(Transacao));
var file = new FileStream(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "transacao.xml"),FileMode.OpenOrCreate);
xml.Serialize(file, transacao);
file.Close();
Here are the beginning of xml generated
<?xml version="1.0"?>
<requisicao-transacao xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<dados-ec>
<numero>1048664497</numero>
The following should work:
var xml = new XmlSerializer(typeof(Transacao));
var fname = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "transacao.xml");
var appendMode = false;
var encoding = Encoding.GetEncoding("ISO-8859-1");
using(StreamWriter sw = new StreamWriter(fname, appendMode, encoding))
{
xml.Serialize(sw, transacao);
}
If you don't mind me asking, why do you need ISO-8859-1 encoding in particular? You could probably use UTF-8 or UTF-16 (they're more commonly recognizable) and get away with it.
Create a StreamWriter with the desired encoding:
System.Text.Encoding code = *WhateverYouWant*
StreamWriter sw = new StreamWriter(file, code);
I am creating an application in C# that has to write some user settings to an XML file. They are read perfectly fine, but when I try to write them back they create an extra end tag that the program cannot read.
XML file:
<?xml version="1.0" encoding="utf-8" ?>
<options>
<fullscreen>False</fullscreen>
<resolutionX>1280</resolutionX>
<resolutionY>720</resolutionY>
<vsync>True</vsync>
<AA>2</AA>
<musicvolume>0</musicvolume>
<soundvolume>0</soundvolume>
</options>
Code that writes:
FileStream stream =
new FileStream("configs/options.xml", FileMode.Open, FileAccess.ReadWrite);
XmlDocument doc = new XmlDocument();
doc.Load(stream);
stream.Seek(0, SeekOrigin.Begin);
doc.SelectSingleNode("/options/fullscreen").InnerText = fullscreen.ToString();
doc.SelectSingleNode("/options/vsync").InnerText = vsync.ToString();
doc.SelectSingleNode("/options/resolutionX").InnerText = resolutionX.ToString();
doc.SelectSingleNode("/options/resolutionY").InnerText = resolutionY.ToString();
doc.SelectSingleNode("/options/AA").InnerText = aa.ToString();
doc.SelectSingleNode("/options/musicvolume").InnerText = musicvolume.ToString();
doc.SelectSingleNode("/options/soundvolume").InnerText = soundvolume.ToString();
doc.Save(stream);
stream.Close();
What I end up with:
<?xml version="1.0" encoding="utf-8" ?>
<options>
<fullscreen>True</fullscreen>
<resolutionX>1280</resolutionX>
<resolutionY>720</resolutionY>
<vsync>True</vsync>
<AA>4</AA>
<musicvolume>0</musicvolume>
<soundvolume>0</soundvolume>
</options>/options>
Since you’re writing to the same stream, if the modified XML is shorter than the original, the difference will remain. You can use FileStream.SetLength after saving to fix that:
doc.Save(stream);
stream.SetLength(stream.Position);
stream.Close();
I have an XML file that I deserialize, the funny part is the XML file is the was serialized
using the following code:
enter code here
var serializer = new XmlSerializer(typeof(CommonMessage));
var writer = new StreamWriter("OutPut.txt");
serializer.Serialize(writer, commonMessage);
writer.Close();
And i m trying to deserialized it again to check if the output match the input.
anyhow here is my code to deserialize:
var serializer = new XmlSerializer(typeof(CommonMessage));
var reader = new StringReader(InputFileName);
CommonMessage commonMessage = (CommonMessage)serializer.Deserialize(reader);
Replace StringReader with StreamReader and it will work fine. StringReader reads value from the string (which is file name in your case).
I just had the same error message but different error source. In case someone has the same problem like me. I chopped off the very first char of my xml string by splitting strings. And the xml string got corrupted:
"?xml version="1.0" encoding="utf-16"?> ..." // my error
"<?xml version="1.0" encoding="utf-16"?> ..." // correct
(1,1) means basically first char of the first line is incorrect and the string can't be deserialized.
include in your CommonMessage class the XmlRoot element tag with your xmlroot eg:[XmlRoot("UIIVerificationResponse")]
You should disable the order mark in the StreamWriter constructor like this:
UTF8Encoding(false)
Full sample:
using (MemoryStream stream = new MemoryStream())
using (StreamWriter writer = new StreamWriter(stream, new UTF8Encoding(false)))
{
xmlSerializer.Serialize(writer, objectToSerialize, ns);
return Encoding.UTF8.GetString(stream.ToArray());
}