How do I get the code below to return the desired output. This is just plain csharp in a main, no ASP.NET.
//Desired output: <amp>Before & After</amp>
//instead of
//Current output: <amp>Before & After</amp>
static void Main(string[] args)
{
string amp = "Before & After";
XmlDocument doc = new XmlDocument();
StringBuilder sb = new StringBuilder();
StringWriter stringWriter = new StringWriter(sb);
XmlTextWriter xmlWriter = new XmlTextWriter(stringWriter);
xmlWriter.WriteStartElement("amp");
xmlWriter.WriteString(amp);
xmlWriter.WriteEndElement();
global::System.Windows.Forms.MessageBox.Show(sb.ToString());
}
Here is how I solved the particular problem.
string amp = "Before & After";
XmlDocument doc = new XmlDocument();
StringBuilder sb = new StringBuilder();
StringWriter stringWriter = new StringWriter(sb);
XmlTextWriter xmlWriter = new XmlTextWriter(stringWriter);
xmlWriter.WriteStartElement("amp");
xmlWriter.WriteString(amp);
xmlWriter.WriteEndElement();
StringReader valueStringReader = new StringReader(sb.ToString());
XmlTextReader valueXmlReader = new XmlTextReader(valueStringReader);
valueXmlReader.MoveToContent();
global::System.Windows.Forms.MessageBox.Show(valueXmlReader.ReadString());
If you want invalid XML create it yourself.
string amp = "Before & After";
// don't really do this, it's very wrong
StringBuilder sb = new StringBuilder();
sb.Append("<amp>");
sb.Append(amp);
sb.Append("</amp>");
Console.WriteLine(sb);
But this is NOT valid xml, so don't do it. If you want to use XML, you need to use valid XML. Your original code sample is correct.
If you want something that is more human readable, then don't use XML, use YAML.
http://www.yaml.org/
amp: Before & After
The desired output is not valid XML. The current output is identical to a CDATA section in that Before & After and <![CDATA[Before & After]]> are simply two different ways of escaping an ampersand so that you can have valid XML. In either case, if you use any XML parser to read the content of the <amp> tag, it will return Before & After.
You could put your text into a CDataSection - see XmlDocument.CreateCDataSection.
Here is how I solved the particular problem.
string amp = "Before & After";
XmlDocument doc = new XmlDocument();
StringBuilder sb = new StringBuilder();
StringWriter stringWriter = new StringWriter(sb);
XmlTextWriter xmlWriter = new XmlTextWriter(stringWriter);
xmlWriter.WriteStartElement("amp");
xmlWriter.WriteString(amp);
xmlWriter.WriteEndElement();
StringReader valueStringReader = new StringReader(sb.ToString());
XmlTextReader valueXmlReader = new XmlTextReader(valueStringReader);
valueXmlReader.MoveToContent();
global::System.Windows.Forms.MessageBox.Show(valueXmlReader.ReadString());
Related
I have written below code to convert XML file to UTF-8 format file, it is working as excepted but issue is header is concatenating with body text instead of writing in separate line. I need utf8 in seperate line but file.writealltext will not accept more than 3 arguments/parameters. Any help appreciated.
string path = #"samplefile.xml";
string path_new = #"samplefile_new.xml";
Encoding utf8 = new UTF8Encoding(false);
Encoding ansi = Encoding.GetEncoding(1252);
string xml = File.ReadAllText(path, ansi);
XDocument xmlDoc = XDocument.Parse(xml);
File.WriteAllText(
path_new,
#"<?xml version=""1.0"" encoding=""UTF-8"" standalone=""true"">" + xmlDoc.ToString(),
utf8
);
No need to use any API other than LINQ to XML. It has all means to deal with XML file encoding, prolog, BOM, indentation, etc.
void Main()
{
string outputXMLfile = #"e:\temp\XMLfile_UTF-8.xml";
XDocument xml = XDocument.Parse(#"<?xml version='1.0' encoding='utf-16'?>
<root>
<row>some text</row>
</root>");
XDocument doc = new XDocument(
new XDeclaration("1.0", "utf-8", null),
new XElement(xml.Root)
);
XmlWriterSettings settings = new XmlWriterSettings();
settings.Indent = true;
settings.IndentChars = "\t";
// to remove BOM
settings.Encoding = new UTF8Encoding(false);
using (XmlWriter writer = XmlWriter.Create(outputXMLfile, settings))
{
doc.Save(writer);
}
}
I have some xml data that looks like..
<Root>
<Data>Nack</Data>
<Data>Nelly</Data>
</Root>
I want to add "<?xml version=\"1.0\"?>" to this string. Then preserve the xml as a string.
I attempted a few things..
This breaks and loses the original xml string
myOriginalXml="<?xml version=\"1.0\"?>" + myOriginalXml;
This doesnt do anything, just keeps the original xml data with no declaration attached.
XmlDocument doc = new XmlDocument();
doc.LoadXml(myOriginalXml);
XmlDeclaration declaration = doc.CreateXmlDeclaration("1.0", "UTF-8","no");
StringWriter sw = new StringWriter();
XmlTextWriter tx = new XmlTextWriter(sw);
doc.WriteTo(tx);
string xmlString = sw.ToString();
This is also not seeming to have any effect..
XmlDocument doc = new XmlDocument();
doc.LoadXml(myOriginalXml);
XmlDeclaration declaration = doc.CreateXmlDeclaration("1.0", "UTF-8", "no");
MemoryStream xmlStream = new MemoryStream();
doc.Save(xmlStream);
xmlStream.Flush();
xmlStream.Position = 0;
doc.Load(xmlStream);
StringWriter sw = new StringWriter();
XmlTextWriter tx = new XmlTextWriter(sw);
doc.WriteTo(tx);
string xmlString = sw.ToString();
Use an xmlwritersettings to achieve greater control over saving. The XmlWriter.Create accepts that setting (instead of the default contructor)
var myOriginalXml = #"<Root>
<Data>Nack</Data>
<Data>Nelly</Data>
</Root>";
var doc = new XmlDocument();
doc.LoadXml(myOriginalXml);
var ms = new MemoryStream();
var tx = XmlWriter.Create(ms,
new XmlWriterSettings {
OmitXmlDeclaration = false,
ConformanceLevel= ConformanceLevel.Document,
Encoding = UTF8Encoding.UTF8 });
doc.Save(tx);
var xmlString = UTF8Encoding.UTF8.GetString(ms.ToArray());
http://james.newtonking.com/projects/json/help/
How come when I use "DeserializeXmlNode" and my JSON gets converted to an XML document
then convert my XML document into a string like this
string strXML = "";
StringWriter writer = new StringWriter();
xmlDoc.Save(writer);
strXML = writer.ToString();
It includes
<?xml version="1.0" encoding="utf-16"?>
I did not add this, how do I remove it?
an XML without that line is not a valid XML file!
that line is called the XML Declaration
as an example, check out the OData XML from Netflix on Catalog Titles, can you see that first line?
http://odata.netflix.com/Catalog/Titles
Use XmlWriter with StringBuilder instead of StringWriter
var strXML = "";
var writer = new StringBuilder();
var settings = new System.Xml.XmlWriterSettings() { OmitXmlDeclaration = true};
var xmlWriter = System.Xml.XmlWriter.Create(strXML, settings);
xmlDoc.Save(xmlWriter);
strXML = writer.ToString();
How do remove the BOM from an XML file that is being created?
I have tried using the new UTF8Encoding(false) method, but it doesn't work. Here is the code I have:
XmlDocument xmlDoc = new XmlDocument();
XmlTextWriter xmlWriter = new XmlTextWriter(filename, new UTF8Encoding(false));
xmlWriter.Formatting = Formatting.Indented;
xmlWriter.WriteProcessingInstruction("xml", "version='1.0' encoding='UTF-8'");
xmlWriter.WriteStartElement("items");
xmlWriter.Close();
xmlDoc.Load(filename);
XmlNode root = xmlDoc.DocumentElement;
XmlElement item = xmlDoc.CreateElement("item");
root.AppendChild(item);
XmlElement itemCategory = xmlDoc.CreateElement("category");
XmlText itemCategoryText = xmlDoc.CreateTextNode("test");
item.AppendChild(itemCategory);
itemCategory.AppendChild(itemCategoryText);
xmlDoc.Save(filename);
You're saving the file twice - once with XmlTextWriter and once with xmlDoc.Save. Saving from the XmlTextWriter isn't adding a BOM - saving with xmlDoc.Save is.
Just save to a TextWriter instead, so that you can specify the encoding again:
using (TextWriter writer = new StreamWriter(filename, false,
new UTF8Encoding(false))
{
xmlDoc.Save(writer);
}
I'd write the XML to a string(builder) instead and then write that string to file.
I am trying to use a XslCompiledTransform, and use the output as a XPathDocument.
Any Ideas?
Mr. Jones's answer was very helpful for me, but I found that the last line didn't work. I ended up doing this:
XslCompiledTransform xsl = new XslCompiledTransform();
xsl.Load(filePath);
StringWriter stringWriter = new StringWriter();
XmlWriter xmlWriter = XmlTextWriter.Create(stringWriter);
xsl.Transform(xPathDoc, xmlWriter);
String newXml = stringWriter.ToString();
StringReader stringReader = new StringReader(newXml);
xPathDoc = new XPathDocument(stringReader);
(Here, xPathDoc is an XPathDocument that has already been initialized from an XmlReader.)
Send the transform to an XmlTextWriter based on a StringWriter. Then instance the XPathDocument by retreiving the XML string from the StringWriter.
var sw = new StringWriter();
var xtw = new XmlTextWriter(sw);
myTransform.Transform(myXml, xtw);
var xpd = new XPathDocument(sw.ToString());
Its not the most memory efficient mechanism but will be adequate for most needs. A similar approach would be use a MemoryStream instead of a StringWriter but its a little messy by comparison.
A slightly better form of David M. Anderson's answer is below: it does not suffer from potential resource leaks; otherwise it is the same.
private static XPathDocument TransformToXPathDocument(string styleSheetPath,
IXPathNavigable xPathDoc)
{
var xsl = new XslCompiledTransform();
xsl.Load(styleSheetPath);
using(var stringWriter = new StringWriter())
{
using(XmlWriter xmlWriter = XmlWriter.Create(stringWriter))
{
xsl.Transform(xPathDoc, xmlWriter);
}
using(var reader = new StringReader(stringWriter.ToString()))
{
return new XPathDocument(reader);
}
}
}