<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
<s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<SetNationalList xmlns="http://www.lge.com/ddc">
<nationalList>
<portnumber>6000</portnumber>
<slaveaddress>7000</slaveaddress>
<flagzone>2</flagzone>
<flagindivisual>5</flagindivisual>
<flagdimming>3</flagdimming>
<flagpattern>6</flagpattern>
<flaggroup>9</flaggroup>
</nationalList>
</SetNationalList>
</s:Body>
</s:Envelope>
XDocument xdoc = XDocument.Parse(xml);
foreach (XElement element in xdoc.Descendants("nationalList"))
{
MessageBox.Show(element.ToString());
}
I'd like to iterate through every nodes under nationalList but it isn't working for me, it skips the foreach loop entirely. What am I doing wrong here?
You're not including the namespace, which is "http://www.lge.com/ddc", defaulted from the parent element:
XNamespace ns = "http://www.lge.com/ddc";
foreach (XElement element in xdoc.Descendants(ns + "nationalList"))
{
...
}
You have to use the namespace:
// do _not_ use var ns = ... here.
XNameSpace ns = "http://www.lge.com/ddc";
foreach (XElement element in xdoc.Descendants(ns + "nationalList")
{
MessageBox.Show(element.ToString());
}
If you don't want to have to use the ns prefix in all the selectors you can also remove the namespace upfront when parsing the xml. eg:
string ns = "http://www.lge.com/ddc";
XDocument xdoc = XDocument.Parse(xml.Replace(ns, string.Empty));
foreach (XElement element in xdoc.Descendants("nationalList")
...
It is correct that you have to include the namespace, but the samples above do not work unless you put the namespace in curly braces:
XNameSpace ns = "http://www.lge.com/ddc";
foreach (XElement element in xdoc.Descendants("{" + ns + "}nationalList")
{
MessageBox.Show(element.ToString());
}
Greetings
Christian
Related
I have this XML
<?xml version="1.0" encoding="utf-8" standalone="no"?>
<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
<S:Header>
<wss:Security xmlns:wss="http://schemas.xmlsoap.org/ws/2002/12/secext">
<wss:UsernameToken>
<wss:Username>username</wss:Username>
<wss:Password>password</wss:Password>
<wss:Nonce></wss:Nonce>
<wss:Created></wss:Created>
</wss:UsernameToken>
</wss:Security>
</S:Header>
<S:Body>
<TaxRegistrationNumber>213213123</TaxRegistrationNumber>
<CompanyName>sadsadasd</CompanyName>
</S:Body>
</S:Envelope>
I want to accesses to the value of <wss:Username> and set a value in <wss:Nonce> node.
I already try 3 ways to get value of <wss:Username> on C# project:
First:
XDocument xmlFile = XDocument.Load(xmlpathfile);
XmlNamespaceManager ns = new XmlNamespaceManager(new NameTable());
ns.AddNamespace("wss", "http://schemas.xmlsoap.org/ws/2002/12/secext/");
XElement UserFinanc = xmlFile.XPathSelectElement("wss:Security/wss:UsernameToken/wss:Username", ns);
Second:
XDocument xmlFile = XDocument.Load(xmlpathfile);
XmlNamespaceManager ns = new XmlNamespaceManager(new NameTable());
var element = xmlFile.Descendants(wss + "Security").Descendants(wss + "UsernameToken").Where(x => x.Descendants(wss + "Username").Any(y => y.Value != "")).First().Element(wss + "UsernameToken");
if (element != null)
MessageBox.Show(element.Element(wss + "Username").Value).Value);
Third:
string grandChild = (string) (from el in xmlFile.Descendants(wss + "Username") select el).First();
MsgBox.Show(grandChild);
I always have similar errors like 'The sequence contains no elements'
Your first attempt is almost right. There are a couple things missing:
The namespace defined in code must be an exact match to the one in the xml. In your case the namespace in code has an extra trailing slash. It should be http://schemas.xmlsoap.org/ws/2002/12/secext.
The XPath expression should be //wss:Security/wss:UsernameToken/wss:Username. The leading slashes basically mean "look for this node anywhere". Alternatively, you could write out the whole path begining with <S:Envelope>. You would need to add the soap envelope namespace to your code as well.
i have this structure of data:
<?xml version="1.0" encoding="windows-1250"?>
<?xml-stylesheet type="text/xsl" href="usb71105.xsl"?>
<manas:usb xmlns:manas="http://www.manas.info/">
<manas:qr00>
<manas:verzemanas>26052708</manas:verzemanas>
<manas:verzexml>2016.03.29a</manas:verzexml>
<manas:druhtisku>U_Tisk2P/2159405/TRUE</manas:druhtisku>
</manas:qr00>
<manas:qr00>
<manas:verzemanas>26052710</manas:verzemanas>
<manas:verzexml>2016.03.30a</manas:verzexml>
<manas:druhtisku>U_Tisk2P/FALSE</manas:druhtisku>
</manas:qr00>
</manas:usb>
I need to save values of: manas:verzemanas ; manas:verzexml ;
I have this code:
XmlDocument doc = new XmlDocument();
doc.Load("d:\\83116623.XML");
foreach (XmlNode node in doc.DocumentElement)
{
string name = node.Attributes[0].ToString();
}
Have you any ideas please?
You're probably better off with XDocument. Also you need to use the namespace prefix. E.g.:
XNamespace ns = "http://www.manas.info/";
var xdoc = XDocument.Load(#"c:\temp\a\a.xml");
var verze = xdoc.Root.Elements(ns + "qr00")
.Elements(ns + "verzemanas")
.Select(e => e.Value);
verze.ToList().ForEach(v => Console.WriteLine(v));
prints
26052708
26052710
How do we update the a node name with a new value using LINQ?
<test xmlns="http://www.mydomain.com/test/xyz" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0">
<Ribbon1>test</Ribbon1>
<Ribbon2>test</Ribbon2>
</test>
I was trying as below:
var query = from lst in XElement.Load(fileLoc).Elements(ns + "Ribbon1")
select lst.FirstNode ;
The below code is working now:
XNamespace ns = #"http://www.mydomain.com/test/xyz";
XElement xElement = XElement.Load(fileLoc);
foreach (XElement descendant in xElement.Descendants(ns + "Ribbon1"))
descendant.Value = "Borra";
xElement.Save(fileLoc);
Your code use Elemnts and that only looks at the given level. To find something at an arbitrary level:
//XElement.Load(fileLoc).Elements(ns + "Ribbon1")
XElement.Load(fileLoc).Descendants(ns + "Ribbon1")
or to adhere to the structure:
XElement.Load(fileLoc).Element(ns + "test").Elements(ns + "Ribbon1")
be careful about Element() and Elements()
XNamespace ns = #"http://www.mydomain.com/test/xyz";
XElement xElement = XElement.Load(fileLoc);
foreach (XElement descendant in xElement.Descendants(ns + "Ribbon1"))
descendant.Value = "Borra";
xElement.Save(fileLoc);
Newbie with XDocuments and Linq, please suggest a solution to retrieve the data from a particular tag in the xml string:
If I have a XML string from webservice response (I formatted xml for ease):
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<soap:Body>
<GetCashFlowReportResponse xmlns="http://tempuri.org/">
<GetCashFlowReportPdf>Hello!</GetCashFlowReportPdf>
</GetCashFlowReportResponse>
</soap:Body>
</soap:Envelope>
Using the following code, I can get the value only if GetCashFlowReportResponse tag doesn't have "xmlns" attribute. Not sure why? Otherwise, it always return null.
string inputString = "<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><soap:Body><GetCashFlowReportResponse xmlns=\"http://tempuri.org/\"><GetCashFlowReportPdf>Hello!</GetCashFlowReportPdf></GetCashFlowReportResponse></soap:Body></soap:Envelope>"
XDocument xDoc = XDocument.Parse(inputString);
//XNamespace ns = "http://tempuri.org/";
XNamespace ns = XNamespace.Get("http://tempuri.org/");
var data = from c in xDoc.Descendants(ns + "GetCashFlowReportResponse")
select (string)c.Element("GetCashFlowReportPdf");
foreach (string val in data)
{
Console.WriteLine(val);
}
I can't change the web service to remove that attribute. IS there a better way to read the response and get the actual data back to the user (in more readable form)?
Edited:
SOLUTION:
XDocument xDoc = XDocument.Parse(inputString);
XNamespace ns = "http://tempuri.org/";
var data = from c in xDoc.Descendants(ns + "GetCashFlowReportResponse")
select (string)c.Element(ns + "GetCashFlowReportPdf");
foreach (string val in data)
{
Console.WriteLine(val);
}
Note: Even if all the child elements doesn't have the namespace attribute, the code will work if you add the "ns" to the element as I guess childs inherit the namespace from parent (see response from SLaks).
You need to include the namespace:
XNamespace ns = "http://tempuri.org/";
xDoc.Descendants(ns + "GetCashFlowReportResponse")
XName qualifiedName = XName.Get("GetCashFlowReportResponse",
"http://tempuri.org/");
var data = from d in xDoc.Descendants(qualifiedName)
Just ask for the elements using the qualified names:
// create a XML namespace object
XNamespace ns = XNamespace.Get("http://tempuri.org/");
var data = from c in xDoc.Descendants(ns + "GetCashFlowReportResponse")
select (string)c.Element(ns + "GetCashFlowReportPdf");
Note the use of the overloaded + operator that creates a QName with a XML namespace and a local name string.
I get the followinng Xresponse after parsing the XML document:
<DIDL-Lite
xmlns="urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:upnp="urn:schemas-upnp-org:metadata-1-0/upnp/"
xmlns:dlna="urn:schemas-dlna-org:metadata-1-0/">
<item id="1182" parentID="40" restricted="1">
<title>Hot Issue</title>
</item>
As per the earlier thread, When there is a default namespace in the document, you must parse it as if it were a named namespace. For example.
XNamespace ns = "urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/";
var xDIDL = xResponse.Element(ns + "DIDL-Lite");
But in my case I have four different name space. I am not getting any results after using the following query , I am getting the response , Not Yeilding any results:
XNamespace dc = "http://purl.org/dc/elements/1.1/";
var vAudioData = from xAudioinfo in xResponse.Descendants(ns + "DIDL-lite").Elements("item")
select new RMSMedia
{
strAudioTitle = ((string)xAudioinfo.Element(dc + "title")).Trim(),
};
I have no clue whats going on as am new to it. Please help
This is because your item element is in your "ns" namespace. Use:-
XNamespace dc = "http://purl.org/dc/elements/1.1/";
XName didl = ns + "DIDL-lite";
XName item = ns + "item";
XName title = dc + "title";
var vAudioData = from xAudioinfo in xResponse.Descendants(didl).Elements(item)
select new RMSMedia
{
strAudioTitle = ((string)xAudioinfo.Element(title)).Trim(),
};
In these cases I tend to create myself a private class to hold the set of XNames I need to simplify the query code.
You are not getting any results because you are using the wrong namespace. All elements without prefix are in the namespace urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/.
Items in the namespace http://purl.org/dc/elements/1.1/ are prefixed with dc: in the xml document. The fragment does not show any items so it is hart to tell what elements you are looking for.
For example - given the following xml:
<DIDL-Lite
xmlns="urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:upnp="urn:schemas-upnp-org:metadata-1-0/upnp/"
xmlns:dlna="urn:schemas-dlna-org:metadata-1-0/">
<item id="1182" parentID="40" restricted="1">
<title>Hot Issue</title>
<dc:title>Purl Title</dc:title>
</item>
</DIDL-Lite>
And also given the assumption that you want to retrieve both titles the following code should yiedl the results you are looking for:
XNamespace dc= "http://purl.org/dc/elements/1.1/";
XNamespace ns = "urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/";
var result = xAudioinfo.Descendants(ns + "title"); // <title></title>
var result2 = xAudioinfo.Descendants(dc + "title"); // <dc:title></dc:title>