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());
}
Related
I have to modify a incoming SOAP XML message to add a namespace to one of the elements so that the deserialisation will work. However when I add the xmlns attribute to the correct element, I get an error when I try to load the xml in to an XmlWriter via a stream (which I need to do to in my IClientMessageInspector implementation to replace the Message reply).
The prefix '' cannot be redefined from '' to 'http://www.example.com' within the same start element tag.
I have a work around, which is that after I've modifed the attribute, I reload the entire XML document from it's own OuterXML. This works for some reason, but makes me think there must be a 'correct' way to do this.
Here's a sample test that demonstrates the problem and my current solutions:
[Test]
public void XmlNamespaceTest()
{
var originalXmlString = "<?xml version=\"1.0\" encoding=\"utf-8\"?><TestElement><Child>thing</Child></TestElement>";
var desiredXmlString = "<?xml version=\"1.0\" encoding=\"utf-8\"?><TestElement xmlns=\"http://www.example.com\"><Child>thing</Child></TestElement>";
var doc = new XmlDocument();
doc.LoadXml(originalXmlString);
Assert.That(originalXmlString, Is.EqualTo(doc.OuterXml));
// Write this document via an XMLWriter
var ms = new MemoryStream();
var xmlWriter = XmlWriter.Create(ms);
doc.WriteTo(xmlWriter);
xmlWriter.Flush();
ms.Position = 0;
StreamReader sr = new StreamReader(ms);
var originalXmlViaXmlWriter = sr.ReadToEnd();
Assert.That(originalXmlString, Is.EqualTo(originalXmlViaXmlWriter));
// Add the namespace to the element
((XmlElement)doc.GetElementsByTagName("TestElement").Item(0))?.SetAttribute("xmlns", "http://www.example.com");
Assert.That(desiredXmlString, Is.EqualTo(doc.OuterXml));
// Now attempt to write this modified xml via an XMLWriter
ms.SetLength(0);
xmlWriter = XmlWriter.Create(ms);
//Uncomment line below to fix the error.
//doc.LoadXml(doc.OuterXml);
doc.WriteTo(xmlWriter);
xmlWriter.Flush();
ms.Position = 0;
sr = new StreamReader(ms);
var modifedXmlViaXmlWriter = sr.ReadToEnd();
Assert.That(desiredXmlString, Is.EqualTo(modifedXmlViaXmlWriter));
}
According to this you can't change an elements namespace in an XmlDocument. This is also what #LocEngineer found in his comment. The referenced article mentions that the only way to do this is to save and reload the XmlDocument, which is exactly what you are doing.
If you are in a position to use XDoxument instead, it is possible. See this answer for a solution.
I'm wrting xml file with UTF-8 (without Bom) encoding as follow:
xmldecl.Encoding = "UTF-8";
dataDoc.InsertBefore(xmldecl, root);//dataDoc is XmlDocument object
using (var writer = new XmlTextWriter(targetPath, new UTF8Encoding(false)))
{
dataDoc.Save(writer);
}
My "problem" is the file is saved in one line instead of xml formatting,
I.e if i have the following xml:
<ElementA>
<ElementB/>
</ElementA>
With my code the xml file will be:
<ElementA><ElementB/></ElementA>
Instead of xml format.
How can i solve it?
*I'm try to open the file with Notepad++
Thanks.
XmlTextWriter has a property Formatting to define the way the output is written:
using (var writer = new XmlTextWriter(targetPath, new UTF8Encoding(false)))
{
writer.Formatting = Formatting.Indented;
dataDoc.Save(writer);
}
I'm trying to write a string(which is nothing but XMLNodes) into a new XML File using XMLWriter. Few of the strings are valid XML content while few of the string aren't.
String Input:
1.
<Test>
<A a="Hello"></A>
<B b="Hello"></B>
</Test>
Hello
This is Sample String but not XML
Code :
using (XmlWriter writer = XmlWriter.Create(#"C:\\Test.XML"))
{
writer.WriteStartDocument();
string scontent2 = "Hello This is Sample String but not XML";
XmlReaderSettings settings = new XmlReaderSettings();
settings.ConformanceLevel = ConformanceLevel.Fragment;
try{
using (StringReader stringReader = new StringReader(scontent))
using (XmlReader xmlReader = XmlReader.Create(stringReader, settings))
{
writer.WriteStartElement("Test");
writer.WriteNode(xmlReader, true);
writer.WriteEndElement();
}catch(XMLException exception){}
}
Expected Output:
The Test element must also not be created if the Exception occurs. If I use, scontent.Read() or any such, the problem is since the pointer moves to a node, the writer.WriteNode(scontent,true) wont write entire nodes(if there are more than two nodes) For ex. <A a="Hello"></A><B b="Hello"></B>. In this case, I've write all nodes using WriteNode for which XMLReader must be in Initial State(XmlReader.State).
I have code for read xml:
string xmlread = new StreamReader(response.GetResponseStream()).ReadToEnd();
Custom custom = new Custom();
TextReader txtReader = new StreamReader(Convert.ToString(xmlread));
XmlSerializer xmlSerializer = new XmlSerializer(typeof(custom));
custom = (Custom)xmlSerializer.Deserialize(txtReader);
but xml has the form
<?xml version=\"1.0\"?>\n<instacheat>\n <hash>5d02c2151c9d147b2219b371b7d383b3665e</hash>\n</instacheat>\n\r\n
and because gives me an error "It contains invalid characters."
Try getting the stream reader to detect the text encoding:
string xmlread = new StreamReader(response.GetResponseStream(), true).ReadToEnd();
To get rid of \r\n, I suggest using a regex as a quick solution
xmlread = System.Text.RegularExpressions.Regex.Replace(xmlread, #"\\r|\\n", "")
I am trying to log some XML responses from a WCF Service using log4net.
I want the output of the XML file to the log to be in properly formed XML. The request comes in as an XMLElement.
Example:
The request comes in as this:
<?xml version="1.0" encoding="utf-8"?>
<ApplicationEvent xmlns="http://courts.wa.gov/INH_TV/ApplicationEvent.xsd">
<Severity xmlns="">Information</Severity>
<Application xmlns="">Application1</Application>
<Category xmlns="">Timings</Category>
<EventID xmlns="">1000</EventID>
<DateTime xmlns="">2012-09-02T12:05:15.234Z</DateTime>
<MachineName xmlns="">Server1</MachineName>
<MessageID xmlns="">10000000-0000-0000-0000-000000000000</MessageID>
<Program xmlns="">Progam1</Program>
<Action xmlns="">Entry</Action>
<UserID xmlns="">User1</UserID>
</ApplicationEvent>
Then if I output this value to log4net.
logger.Info(request.OuterXml);
I get the entire document logged in a single line like so:
<ApplicationEvent xmlns="http://courts.wa.gov/INH_TV/ApplicationEvent.xsd"><Severity xmlns="">Information</Severity><Application xmlns="">Application1</Application><Category xmlns="">Timings</Category><EventID xmlns="">1000</EventID><DateTime xmlns="">2012-09-02T12:05:15.234Z</DateTime><MachineName xmlns="">Server1</MachineName><MessageID xmlns="">10000000-0000-0000-0000-000000000000</MessageID><Program xmlns="">Progam1</Program><Action xmlns="">Entry</Action><UserID xmlns="">User1</UserID></ApplicationEvent>
I would like it to display in the log.txt file formatted correctly as it came in. So far the only way I have found to do this is to convert it to an XElement like so:
XmlDocument logXML = new XmlDocument();
logXML.AppendChild(logXML.ImportNode(request, true));
XElement logMe = XElement.Parse(logXML.InnerXml);
logger.Info(logMe.ToString());
This doesn't seem like good programming to me. I have been searching the documentation and I can't find a built-in way to output this correctly without converting it.
Is there an obvious, better way that I am just missing?
edit1: Removed ToString() since OuterXML is a String value.
edit2: I answered my own question:
So I did some more research, and I guess I missed a piece of code in the documentation.
http://msdn.microsoft.com/en-us/library/system.xml.xmlnode.outerxml.aspx
I have it down to:
using (MemoryStream ms = new MemoryStream())
{
XmlWriterSettings xws = new XmlWriterSettings();
xws.Indent = true;
using (XmlWriter xmlWriter = XmlWriter.Create(ms, xws))
{
request.WriteTo(xmlWriter);
}
ms.Position = 0; StreamReader sr = new StreamReader(ms);
string s = sr.ReadToEnd(); // s will contain indented xml
logger.Info(s);
}
Which is a little more efficient than my current method despite being more verbose.
XElement parse is the cleanest way. You can save a line or two with:
logger.Info(XElement.Parse(request.OuterXml).ToString());