<root>
<element1>innertext</element1>
<element2>innertext</element2>
<element3>
<child1>innertext</child1>
</element3>
</root>
I have an xml structure shown above.
I would like to "append" the xml file (it is already created) to add another "child" inside element3>, so that it will look like this:
<root>
<element1>innertext</element1>
<element2>innertext</element2>
<element3>
<child1>innertext</child1>
<child2>innertext</child2>
</element3>
</root>
Linq to xml and/or Xpath would be great
EDIT:
I have tried doing this:
XElement doc = XElement.Load(mainDirectory);
XElement newElem = doc.Elements("element3").First();
newElem.Add(new XElement("child2", "child2innertext"));
doc.Add(newElem);
doc.Save(mainDirectory);
XmlDocument xDoc = new XmlDocument();
xDoc.Load("filename.xml");
foreach (XmlNode xNode in xDoc.SelectNodes("/root/element3"))
{
XmlElement newElement = xDoc.CreateElement("Child2");
xNode.AppendChild(newElement);
xNode.InnerText = "myInnerText";
}
With XDocument you can achieve this as:
string xml = "<root><element1>innertext</element1><element2>innertext</element2><element3><child1>innertext</child1></element3></root>";
var doc = XDocument.Parse(xml); //use XDocument.Load("filepath"); in case if your xml is in a file.
var el3 = doc.Descendants("element3").FirstOrDefault();
el3.Add(new XElement("child2", "innertext"));
Please, try this LINQPAD example
void Main()
{
var xml =
#"<root>
<element1>innertext</element1>
<element2>innertext</element2>
<element3>
<child1>innertext</child1>
</element3>
</root>";
var doc = XDocument.Parse(xml);
doc.Root.Element("element3")
.Add(new XElement("child2", "innertext"));
doc.Dump();
}
Related
I am working on this since yesterday. I have an XML file which looks something like this
<catalog>
<captureInfo>
<row>5</row>
<col>5</col>
</captureInfo>
<patientInfo>
<name>XYZ</name>
<detail>details here</detail>
</patientInfo>
<imageData>
<r0c0>
<contrastFlag>true</contrastFlag>
</r0c0>
<r0c1>
<contrastFlag>true</contrastFlag>
</r0c1>
</imageData>
</catalog>
I need to update the value of contrastFlag in the XML file. This is the code I have written:
XmlDocument doc = new XmlDocument();
XmlNodeList imageData = doc.GetElementsByTagName("imageData");
foreach(XmlNode node in imageData)
{
foreach (XmlNode innernode in node)
{
if (innernode.Name == "r0c0")
{
innernode.InnerText = "false";
}
}
}
doc.Save("XMLFile1.xml");
Can anyone tell me where am I going wrong and also is there any better/faster approach for this?
Well first off, your XML is malformed, the closing should match "catalog". Why not just do this:
string xml = #"<catalog>
<captureInfo>
<row>5</row>
<col>5</col>
</captureInfo>
<patientInfo>
<name>XYZ</name>
<detail>details here</detail>
</patientInfo>
<imageData>
<r0c0>
<contrastFlag>true</contrastFlag>
</r0c0>
<r0c1>
<contrastFlag>true</contrastFlag>
</r0c1>
</imageData>
</catalog>";
XmlDocument xdoc = new XmlDocument();
xdoc.LoadXml(xml);
xdoc.SelectSingleNode("//catalog/imageData/r0c0/contrastFlag").InnerText = "false";
Here is a way to replace all of the instances using LINQ. I just wrote out to a new file to preserve the source.
StreamReader stream = new StreamReader(#"c:\test.xml");
XDocument doc = XDocument.Load(stream);
IEnumerable<XElement> flags = doc.Descendants("contrastFlag");
foreach (XElement e in flags)
{
e.Value = "false";
}
doc.Save(#"c:\test2.xml");
I have xml file:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><SENT_110 xmlns:ns2="http://www.mf.gov.pl/SENT/2017/01/18/STypes.xsd" xmlns="http://www.mf.gov.pl/SENT/2017/01/18/SENT_110.xsd"><SentNumber>SENT20180416000032</SentNumber><KeyNumber><ns2:SenderKey>KS-28YM</ns2:SenderKey><ns2:RecipientKey>KR-52DH</ns2:RecipientKey><ns2:CarrierKey>KD-48WW</ns2:CarrierKey></KeyNumber>
I want to read in separate SenderKey, RecipientKey & CarrierKey.
When i use this code:
XmlTextReader reader = new XmlTextReader(file);
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(reader);
XmlNamespaceManager nsmgr = new XmlNamespaceManager(xmlDoc.NameTable);
nsmgr.AddNamespace("ns", xmlDoc.DocumentElement.NamespaceURI);
XmlNodeList nodeList = xmlDoc.SelectNodes("/ns:SENT_110/ns:KeyNumber", nsmgr);
foreach (XmlNode node in nodeList)
{
key = node.InnerText;
MessageBox.Show(key);
}
i've got something like this: KS-28YMKR-52DHKD-48WW, without any separate between key.
How i could read only one key?
Use the following XPath:
"/ns:SENT_110/ns:KeyNumber/*"
It will return all nested nodes to you.
If the structure of the XML is fixed it is rather easy by using XDocument:
var xmlText = "<SENT_110 xmlns:ns2=\"http://www.mf.gov.pl/SENT/2017/01/18/STypes.xsd\" xmlns=\"http://www.mf.gov.pl/SENT/2017/01/18/SENT_110.xsd\"><SentNumber>SENT20180416000032</SentNumber><KeyNumber><ns2:SenderKey>KS-28YM</ns2:SenderKey><ns2:RecipientKey>KR-52DH</ns2:RecipientKey><ns2:CarrierKey>KD-48WW</ns2:CarrierKey></KeyNumber></SENT_110>";
var xml = XDocument.Parse(xmlText);
var nodes = xml.Descendants();
var senderKey = nodes.First(d => d.Name.ToString().EndsWith("SenderKey")).Value;
var recipientKey = nodes.First(d => d.Name.ToString().EndsWith("RecipientKey")).Value;
var carrierKey = nodes.First(d => d.Name.ToString().EndsWith("CarrierKey")).Value;
See HERE for a working snippet. If this is just a part of a bigger XML or the structure can be different maybe some more complex searching is needed.
I am trying to get some data from an XML document. I have no control over the schema. If it were up to me I would have chosen another schema. I am using C#'s XPATH library to get the data.
XML DOC
<Journals>
<name>Title of Journal</name>
<totalvolume>2</totalvolume>
<JournalList>
<Volume no="1">
<Journal>
<issue>01</issue>
<Title>Title 1</Title>
<date>1997-03-10</date>
<link>www.somelink.com</link>
</Journal>
<Journal>
<issue>02</issue>
<Title>Title 3</Title>
<date>1997-03-17</date>
<link>www.somelink.com</link>
</Journal>
</Volume>
<Volume no="2">
<Journal>
<issue>01</issue>
<Title>Title 1</Title>
<date>1999-01-01</date>
<link>www.somelink.com</link>
</Journal>
<Journal>
<issue>01</issue>
<Title>Title 2</Title>
<date>1999-01-08</date>
<link>www.somelink.com</link>
</Journal>
</Volume>
</JournalList>
</Journals>
I am trying to get all the data in the Volume 2 node. Here is what I tried so far:
C# Code:
protected void loadXML(string url)
{
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(url);
string strQuery = "Volume[#no='2']";
XmlElement nodeList = xmlDoc.DocumentElement;
XmlNodeList JournalList = nodeList.SelectNodes(strQuery);
foreach (XmlElement Journal in JournalList)
{
XmlElement temp = Journal;
}
}
It seems there are no nodes in JournalList. Anyone? Thanks in advance/
Your code is looking for "Volume" nodes directly under the "Journals" node
Change this:
string strQuery = "Volume[#no='2']";
To this, in order to look for "Volume" nodes under the "JournalList" node:
string strQuery = "JournalList/Volume[#no='2']";
Also, there's a couple typos in your XML:
</Volume no="2"> -> <Volume no="2"> // no open tag found
</Journal> -> </Journals> // expecting end tag </Journals>
From your comment below:
how would I go about access each journal? for example. I want irrate through each "journal" and get the title of the journal?
In order to do that, you could modify your code slightly:
var nodeList = xmlDoc.DocumentElement;
var volume = nodeList.SelectSingleNode(strQuery);
foreach (XmlElement journal in volume.SelectNodes("Journal"))
{
var title = journal.GetElementsByTagName("Title")[0].InnerText;
}
Also you can use Linq to XML:
using System.Xml.Linq;
//...
string path="Path of your xml file"
XDocument doc = XDocument.Load(path);
var volume2= doc.Descendants("Volume").FirstOrDefault(e => e.Attribute("no").Value == "2");
I'm really just trying to create a custom xml document for simple configuration processing.
XmlDocument xDoc = new XmlDocument();
string[] NodeArray = { "Fruits|Fruit", "Vegetables|Veggie"};
foreach (string node in NodeArray)
{
XmlNode xmlNode = xDoc.CreateNode(XmlNodeType.Element,node.Split('|')[0],null);
//xmlNode.Value = node.Split('|')[0];
xmlNode.InnerText = node.Split('|')[1];
xDoc.DocumentElement.AppendChild(xmlNode);
}
What i'm trying to get is this.
<?xml version="1.0" encoding="ISO-8859-1"?>
<Fruits>Fruit</Fruits>
<Vegetables>Veggie</Vegetables>
i get not set to value of an object at xDoc.DocumentElement.AppendChild(xmlNode);
Unfortunately, You can't make that XML structure.
All XML documents must have a single root node. You can't have more.
Try something like this
XmlDocument xDoc = new XmlDocument();
xDoc.AppendChild( xDoc.CreateElement("root"));
string[] NodeArray = { "Fruits|Fruit", "Vegetables|Veggie" };
foreach (string node in NodeArray)
{
XmlNode xmlNode = xDoc.CreateNode(XmlNodeType.Element, node.Split('|')[0], null);
//xmlNode.Value = node.Split('|')[0];
xmlNode.InnerText = node.Split('|')[1];
xDoc.DocumentElement.AppendChild(xmlNode);
}
It is not possible to have that XML structure as XML MUST have a single root element. You may want to try:
<?xml version="1.0" encoding="ISO-8859-1"?>
<items>
<Fruits>Fruit</Fruits>
<Vegetables>Veggie</Vegetables>
</items>
I have this XML file, I can read all the the nodes
<?xml version="1.0" encoding="UTF-8"?>
<cteProc xmlns="http://www.portalfiscal.inf.br/cte" versao="1.04">
<CTe xmlns="http://www.portalfiscal.inf.br/cte">
<infCte versao="1.04" ID="CTe3512110414557000014604"></infCte>
</CTe>
</cteProc>
I have tried reading this using C#
string chavecte;
string CaminhoDoArquivo = #"C:\Separados\13512004-procCTe.xml";
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(CaminhoDoArquivo); //Carregando o arquivo
chavecte = xmlDoc.SelectSingleNode("infCTe")
.Attributes.GetNamedItem("Id").ToString();
but something is wrong with this code.
If you want to use Linq To Xml
var xDoc = XDocument.Load(CaminhoDoArquivo);
XNamespace ns = "http://www.portalfiscal.inf.br/cte";
var chavecte = xDoc.Descendants(ns+"infCte").First().Attribute("id").Value;
PS: I am assuming your xml's invalid line is as
<infCte versao="1.04" id="CTe3512110414557000014604"></infCte>
replace
chavecte = xmlDoc.SelectSingleNode("infCTe").Attributes.GetNamedItem("Id").Value;
with
XmlNamespaceManager nsmgr = new XmlNamespaceManager(xmlDoc.NameTable);
nsmgr.AddNamespace("ab", "http://www.portalfiscal.inf.br/cte");
chavecte = xmlDoc.SelectSingleNode("//ab:infCte", nsmgr)
.Attributes.GetNamedItem("Id").Value;
I've also noticed that infCte doesn't have the ID attribute properly defined in your xml
Another possible solution is:
string CaminhoDoArquivo = #"C:\Separados\13512004-procCTe.xml";
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(CaminhoDoArquivo); //Carregando o arquivo
// Select the node you're interested in
XmlNode node = xmlDoc.SelectSingleNode("/cteProc/CTe/infCte");
// Read the value of the attribute "ID" of that node
string chavecte = node.Attributes["ID"].Value;