I have following xml file:
<os:tax>
<os:cat name="abc" id="1">
<os:subcat name="bcd" id="11">
<os:t name="def" id="111">
<os:cut name="hello" id="161" cutURL="/abc/a.html"/>
<os:cut name="hello2" id="162" cutURL="/abc1/a1.html"/>
<os:cut name="hello3" id="163" cutURL="/abc4/a3.html"/>
</os:t>
</os:subcat>
</os:cat>
<os:cat name="def" id="2">
<os:subcat name="bcd" id="22">
<os:t name="def" id="222">
<os:cut name="hello" id="171" cutURL="/abcs/a.html"/>
<os:cut name="hello2" id="172" cutURL="/abcs1/a1.html"/>
<os:cut name="hello3" id="173" cutURL="/abcs4/a3.html"/>
</os:t>
</os:subcat>
</os:cat>
</os:tax>
Its a bigger file with lot of os:cat under it. I need to get string value for:
os:cat -> id , name
os:subcat -> id, name
os: t -> id, name
os: cut -> id, name, cutURL
I have this so far:
XmlNodeList tax = xmlDoc.GetElementsByTagName("os:tax");
foreach (XmlNode node in tax)
{
XmlElement cat = (XmlElement)node;
// than get string values here?
}
Is this correct? Can anyone show me efficient way to do this? Or right way to do this easily?
Here's a sample for LINQ to XML - but I strongly suggest you look for full LINQ to XML tutorials. (And get to grips with the rest of LINQ...)
(EDIT: I hadn't spotted the t part before.)
XDocument doc = XDocument.Load("tax.xml");
XNamespace os = "http://something"; // You haven't included the declaration...
foreach (XElement cat in doc.Descendants(os + "cat"))
{
int catId = (int) cat.Attribute("id");
string catName = (string) cat.Attribute("name");
foreach (XElement subcat in cat.Elements(os + "subcat"))
{
int subId = (int) subcat.Attribute("id");
string subName = (string) subcat.Attribute("name");
foreach (XElement t in subcat.Elements(os + "t"))
{
int tId = (int) t.Attribute("id");
string tName = (string) t.Attribute("name");
foreach (XElement cut in t.Elements(os + "cut"))
{
string cutId = (int) cut.Attribute("id");
string cutName = (string) cut.Attribute("name");
string cutUrl = (string) cut.Attribute("cutURL");
// Use the variables here
}
}
}
}
This assumes there's only one subcat for each cat - I don't know if that's correct.
You may want to express this as a LINQ query instead... it depends on what you need to do.
Here's a LINQ query version - having looked at everything you're using, I think this makes more sense:
XDocument doc = XDocument.Load("tax.xml");
XNamespace os = "http://something"; // You haven't included the declaration...
var query = from cat in doc.Descendants(os + "cat")
from subcat in cat.Elements(os + "subcat")
from t in subcat.Elements(os + "t")
from cut in t.Elements(os + "cut")
select new
{
CatId = (int) cat.Attribute("id"),
CatName = (string) cat.Attribute("name"),
SubCatId = (int) subcat.Attribute("id"),
SubCatName = (string) subcat.Attribute("name"),
TId = (int) t.Attribute("id"),
TName = (string) t.Attribute("name"),
CutId = (int) cut.Attribute("id")
CutName = (string) cut.Attribute("name")
CutUrl = (string) cut.Attribute("cutURL")
};
Note that I've converted all the ID values to int rather than string. You could convert them to strings instead, of course, but if they are all integers, it makes sense to parse them as such.
Jon's suggestion to use LINQ to XML is the way to go, but I've included the old way below. My XPath is a little (very) rusty, so forgive me if there are any mistakes:
var doc = new XmlDocument(); //your document
var xmlnsManager = new System.Xml.XmlNamespaceManager(doc.NameTable);
xmlnsManager.AddNamespace("os", "http://bla");
foreach (XmlNode node in doc.SelectNodes("//os:subcat/os:t/os:cut", xmlnsManager))
{
string value = node.Attributes.GetNamedItem("name").Value;
}
See this article if you need more help: http://support.microsoft.com/kb/318545
Consider using XElement along with Lambda expression.
XNamespace osNs = "http://xml.com"; // Like Jon said, you haven't included the namespace url
XElement taxElement = XElement.Load("path/to/your/xml/file");
foreach(var cat in taxElement.Decendents(osNs + "cat"))
{
Console.WriteLine(cat.Attribute("id").Value);
foreach(var subcat in cat.Decendents(osNs + "subcat"))
{
Console.WriteLine(subcat.Attribute("id").Value);
foreach(var t in subcat.Decendents(osNs + "t"))
{
Console.WriteLine(t.Attribute("id").Value);
foreach(var cut in t.Decendents(osNs + "cut"))
{
Console.WriteLine(cut.Attribute("id").Value);
Console.WriteLine(cut.Attribute("name").Value);
Console.WriteLine(cut.Attribute("cutURL").Value);
}
}
}
}
It's just capturing one node at by another. If you want to get all the curURL then you can just write something like this:
foreach(var cut in taxElement.Decendents(osNs + "cut"))
{
Console.WriteLine(cut.Attribute("cutURL"));
}
Even you can use Lambda like if you want something like all os:cut where os:subcat id = 22
taxElement.Decendents("osNs + "subcat").Where(p => p.Attribute("id").Value == "22").Decendents(osNs + "cut");
Please go through some tutorial on LINQ to XML or something on XElement.
Hope this helps!
Related
I have an XML file with a structure similar to this
<entry name="something">
<members>
<member>aaa</member>
<member>bbb</member>
</members>
</entry>
<entry name="something_else">
<members>
<member>ccc</member>
<member>ddd</member>
</members>
</entry>
I need to be able to get the values out of each of the member nodes to store in a datatable. if i use the innertext property, it concatenates the values (aaabbb). there is nothing discernible to split the string on. I can also use the inner XML but then i just get a string with the XML structure (aaa bbb<\member>)
What is the best way to get each value out of the XML elements and store it in a string array?
here is what I have been trying.
foreach (XmlNode grpNode in GrpList)
{
subNode = grpNode.Attributes["name"];
if (subNode != null)
{
Obj = grpNode.Attributes["name"].Value;
}
subNode = grpNode["members"];
if (subNode != null)
{
string innerXml = string.Empty;
innerXml = grpNode["members"].InnerXml.ToString();
string[] tempArrary = innerXml.Split(new char[] {'>', '<'});
}
}
You can use Xpath to iterate through Entry nodes and get the members within it like this
string xml = "<root><entry name='something'>" +
"<members>" +
"<member>aaa</member>" +
"<member>bbb</member>" +
"</members>" +
"</entry>" +
"<entry name='something_else'>" +
"<members>" +
"<member>ccc</member>" +
"<member>ddd</member>" +
"</members>" +
"</entry></root>";
XmlDocument doc = new XmlDocument();
doc.LoadXml(xml);
var memsList = doc.SelectNodes("//entry");
foreach (XmlNode a in memsList)
{
Console.WriteLine(a.Attributes["name"].Value);
var memList = a.SelectNodes("members/member");
foreach(XmlNode x in memList)
Console.WriteLine(x.InnerText);
}
You need to iterate the child elements within members, so something like:
foreach (var node in grpNode["members"].ChildNodes)
{
var value = node.InnerText;
}
That said, you would be better off using LINQ to XML unless you have some specific reason to use XmlDocument. This gives you much more expressive code, for example:
var doc = XDocument.Parse(xml);
var something = doc.Descendants("entry")
.Where(e => (string)e.Attribute("name") == "something")
.Single();
var somethingMembers = something.Descendants("member")
.Select(e => e.Value)
.ToArray();
This should do the trick:
XDocument xdoc = XDocument.Load(#"Path/to/file");
var result = xdoc.Descendants("member").Select (x => x.Value).ToArray();
Result:
Demo Code
the xml you've provided isn't valid. But assuming you just want the inner text of all member nodes into a string array, I'd just use Linq-To-Xml (XDocument):
var results = XDocument.Parse(xmlString)
.Descendants("member")
.Select(m => m.Value)
.ToArray();
Even though you're using the old XmlDocument API, by throwing in an .OfType<XmlNode>() you can convert an XmlNodeList to a generic enumerable and thereby mix in some linq and lambda syntax, for instance:
var tempArrary = subNode.SelectNodes("member").OfType<XmlNode>().Select(n => n.InnerText).ToArray();
Here it gets the XML document and individual nodes, and inserts the nodes into a dictionary.
//create the xml document obj
XmlDocument inputXMLDoc = new XmlDocument();
fileref.isValid = false;
//load the xml document
#region
try
{
inputXMLDoc.XmlResolver = null;
inputXMLDoc.Load( strfile );//load the xml file
string input = inputXMLDoc.OuterXml;//get the string
Console.WriteLine( "success,loaded XML" );
logger.Log( "loaded xml:" + strfile );
fileref.importList = new Dictionary<string, XmlNode>();
nodeNames = new List<string> { "OrderId", "CustomerId", "CustomerName", "Addresses", "OrderStatus", "DateOrdered", "PaymentTime", "IncludeVAT", "OrderTotalIncVat", "OrderTotalVat", "Currency", "TypeOfSaleId" };
try
{
int i = 0;
foreach( string name in nodeNames )
{
Console.WriteLine( "Adding xml node " + name );
if( inputXMLDoc.GetElementsByTagName( name ) != null )
{
XmlNodeList xlist = inputXMLDoc.GetElementsByTagName( name );
foreach( XmlNode node in xlist )
{
fileref.importList.Add( name, node );
//add individual node within nodelist
Console.WriteLine( name );
}
} //add specified node from XML doc
else
{
nodeNames.RemoveAt( i );
}
i++;
}
}
}
Later, the nodes are accessed to save the information to a web service. However, nodes with child nodes within are not showing up this way.
Invoices.Address address = new Invoices.Address();
XmlNodeList oNodeList = fileref.importList["Addresses"].SelectNodes("/Delivery/Street");
foreach (XmlNode xn in oNodeList)
{
address.Street = xn.InnerText;
}
Sample XML document
<?xml version="1.0" encoding="utf-8"?>
<InvoiceOrder xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<OrderId xmlns="http://24sevenOffice.com/webservices">35</OrderId>
<CustomerId xmlns="http://24sevenOffice.com/webservices">21</CustomerId>
<CustomerName xmlns="http://24sevenOffice.com/webservices">James Bond</CustomerName>
<Addresses xmlns="http://24sevenOffice.com/webservices">
<Delivery>
<Street>11 Shewell Walk</Street>
<State />
<PostalCode>CO1 1WG</PostalCode>
<PostalArea>Essex</PostalArea>
<Name />
<City>Colchester</City>
<Country>UK</Country>
</Delivery>
<Invoice>
<Street>10 Shewell Walk</Street>
<State />
<PostalCode>CO1 1WG</PostalCode>
<PostalArea>Essex</PostalArea>
<Name />
<City>Colchester</City>
<Country>UK</Country>
</Invoice>
</Addresses>
<OrderStatus xmlns="http://24sevenOffice.com/webservices">Offer</OrderStatus>
<DateOrdered xmlns="http://24sevenOffice.com/webservices">2015-06-15T14:00:00Z</DateOrdered>
<PaymentTime xmlns="http://24sevenOffice.com/webservices">14</PaymentTime>
<IncludeVAT xsi:nil="true" xmlns="http://24sevenOffice.com/webservices" />
<OrderTotalIncVat xmlns="http://24sevenOffice.com/webservices">480.0000</OrderTotalIncVat>
<OrderTotalVat xmlns="http://24sevenOffice.com/webservices">80.0000</OrderTotalVat>
<Currency xmlns="http://24sevenOffice.com/webservices">
<Symbol>LOCAL</Symbol>
</Currency>
<TypeOfSaleId xmlns="http://24sevenOffice.com/webservices">-100</TypeOfSaleId>
<InvoiceRows xmlns="http://24sevenOffice.com/webservices">
<InvoiceRow>
<ProductId>18</ProductId>
<RowId>4665754</RowId>
<Price>400.0000</Price>
<Name>17" Laptop Screen</Name>
<DiscountRate>0.0000</DiscountRate>
<Quantity>7.0000</Quantity>
<Cost>0.0000</Cost>
<InPrice>0.0000</InPrice>
</InvoiceRow>
</InvoiceRows>
</InvoiceOrder>
The reason your code doesn't work is likely that you're ignoring the namespace of the elements you're looking for. There are many questions covering how to do that, such as this one.
That said, XmlDocument is a creaky old API and the newer LINQ to XML is a huge improvement - I'd suggest you look into that.
I'm also not sure the dictionary is pulling its weight for such a small number of elements. You can simply query what you need straight from the XML. For example, to get all your fields as typed values:
var doc = XDocument.Parse(strfile);
var order = doc.Elements("InvoiceOrder").Single();
XNamespace ns = "http://24sevenOffice.com/webservices";
var orderId = (int)order.Element(ns + "OrderId");
var customerId = (int)order.Element(ns + "CustomerId");
var customerName = (string)order.Element(ns + "CustomerName");
var orderStatus = (string)order.Element(ns + "OrderStatus");
var dateOrdered = (DateTime)order.Element(ns + "DateOrdered");
var paymentTime = (int)order.Element(ns + "PaymentTime");
var totalIncVat = (decimal)order.Element(ns + "OrderTotalIncVat");
var totalVat = (decimal)order.Element(ns + "OrderTotalVat");
var currency = (string)order.Elements(ns + "Currency").Elements(ns + "Symbol").SingleOrDefault();
var typeOfSaleId = (int)order.Element(ns + "TypeOfSaleId");
You can use a similar technique to get map your addresses to your strongly typed Address class:
var deliveryAddress = order.Elements(ns + "Addresses")
.Elements(ns + "Delivery")
.Select(e => new Invoice.Address
{
Street = (string)e.Element(ns + "Street"),
// ....
})
.Single();
The problem you have is with namespaces. If you specify the namespace for each of those elements then it seems to work. I came to this conclusion with a bit of googling and some experimentation so my explanation might not be spot on so I advise researching the issue further yourself to understand it correctly.
This code will work:
XmlNamespaceManager nsmgr = new XmlNamespaceManager(inputXMLDoc.NameTable);
nsmgr.AddNamespace("ns", "http://24sevenOffice.com/webservices");
var oNodeList = importList["Addresses"].SelectNodes("//ns:Delivery/ns:Street",nsmgr);
The reason is (I think) that in your XML document you are specifying a default namespace for your elements (xmlns="http://24sevenOffice.com/webservices") and in your xpath you are not specifying that same namespace. In my code I create a namespace manager with that namespace in and prefix it to the two elements which it now considers to match the ones in your document that have these namespaces.
I am trying to figure out the code to extract xml child (I think this is worded correctly) elements. I have searched and tried many samples but cannot find how to drill down to pick out the section I want and return the information I need. Maybe I all I need is someone to define the data I am trying to pull so I can read up on the issue, of course any code would be very helpful and I will figure it out from there. Thanks in advanced for any help!
Here is the xml file. I am trying to run an if statement to find the section named <STATISTICTYPE>PVCAP_CharactersSaved</STATISTICTYPE> and return the <JOBNAME>,<TIMEDELTA>,<VALUESUM>.
<?xml version="1.0" encoding="utf-8"?>
<PVCAPTURESTATISTICCONTAINTER xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<PVCAPTUREJOBSTATISTICS>
<PVCAPTURESTATISTICSUMMARY>
<STATISTICTYPE>PVCAP_CharactersSaved</STATISTICTYPE>
<STATISTICNAME>Characters saved</STATISTICNAME>
<JOBID>24</JOBID>
<JOBNAME>HEAT FILES</JOBNAME>
<TIMEDELTA>422</TIMEDELTA>
<VALUESUM>25432</VALUESUM>
</PVCAPTURESTATISTICSUMMARY>
<PVCAPTURESTATISTICSUMMARY>
<STATISTICTYPE>PVCAP_CharactersSaved_NoMM</STATISTICTYPE>
<STATISTICNAME>Characters saved (no match and merge)</STATISTICNAME>
<JOBID>24</JOBID>
<JOBNAME>HEAT FILES</JOBNAME>
<TIMEDELTA>422</TIMEDELTA>
<VALUESUM>25432</VALUESUM>
</PVCAPTURESTATISTICSUMMARY>
</PVCAPTUREJOBSTATISTICS>
<DOCUMENTCOUNT>762</DOCUMENTCOUNT>
<PAGECOUNT>3194</PAGECOUNT>
<IMAGECOUNT>3194</IMAGECOUNT>
<VERSION>2.0</VERSION>
</PVCAPTURESTATISTICCONTAINTER>
You can use LINQ to XML, particularly the XElement class.
var element = XElement.Parse(xmlStr).Element("PVCAPTUREJOBSTATISTICS")
.Elements("PVCAPTURESTATISTICSUMMARY")
.First(c => c.Element("STATISTICTYPE").Value == "PVCAP_CharactersSaved")
var jobName = element.Element("JOBNAME").Value;
var timeDelta = element.Element("TIMEDELTA").Value;
var valueSum = element.Element("VALUESUM").Value;
You'll want to add in some error handling and whatnot here, but this should get you going in the right direction.
You can do something like this:
XElement res = XElement.Parse(xmlResult);
foreach(var elem in res.Element("PVCAPTUREJOBSTATISTICS").Elements("PVCAPTURESTATISTICSUMMARY"))
{
if (elem.Element("STATISTICTYPE").Value.Equals("PVCAP_CharactersSaved", StringComparison.Ordinal))
{
string jobName = elem.Element("JOBNAME").Value;
string timeDelta = elem.Element("TIMEDELTA").Value;
string valueSum = elem.Element("VALUESUM").Value;
}
}
You can use XDocument and LINQ-to-XML to do that quite easily, for example :
string xml = "your xml content here";
XDocument doc = XDocument.Parse(xml);
//or if you have the xml file instead :
//XDocument doc = XDocument.Load("path_to_xml_file.xml");
var result = doc.Descendants("PVCAPTURESTATISTICSUMMARY")
.Where(o => (string) o.Element("STATISTICTYPE") == "PVCAP_CharactersSaved")
.Select(o => new
{
jobname = (string) o.Element("JOBNAME"),
timedelta = (string) o.Element("TIMEDELTA"),
valuesum = (string) o.Element("VALUESUM")
});
foreach (var r in result)
{
Console.WriteLine(r);
}
Hey all i have looked thoroughly through all the questions containing XDocument and while they are all giving an answer to what I'm looking for (mostly namespaces issues) it seems it just won't work for me.
The problem I'm having is that I'm unable to select any value, be it an attribute or element.
Using this XML
I'm trying to retrieve the speaker's fullname.
public void GetEvent()
{
var xdocument = XDocument.Load(#"Shared\techdays2013.xml");
XNamespace xmlns = "http://www.w3.org/2001/XMLSchema-instance";
var data = from c in xdocument.Descendants(xmlns + "speaker")
select c.Element(xmlns + "fullname").Value;
}
You can omit the namespace declaration in your linq statement.
public void GetEvent()
{
var xdocument = XDocument.Load(#"Shared\techdays2013.xml");
//XNamespace xmlns = "http://www.w3.org/2001/XMLSchema-instance";
var data = from c in xdocument.Descendants("speaker")
select c.Element("fullname").Value;
}
You can omit WebClient because you have direct local access to a file. I'm just showing a way to process your file on my machine.
void Main()
{
string p = #"http://events.feed.comportal.be/agenda.aspx?event=TechDays&year=2013&speakerlist=c%7CExperts";
using (var client = new WebClient())
{
string str = client.DownloadString(p);
var xml = XDocument.Parse(str);
var result = xml.Descendants("speaker")
.Select(speaker => GetNameOrDefault(speaker));
//LinqPad specific call
result.Dump();
}
}
public static string GetNameOrDefault(XElement element)
{
var name = element.Element("fullname");
return name != null ? name.Value : "no name";
}
prints:
Bart De Smet
Daniel Pearson
Scott Schnoll
Ilse Van Criekinge
John Craddock
Corey Hynes
Bryon Surace
Jeff Prosise
1) You have to drop the namespace
2) You'll have to query more precisely. All your <speaker> elements inside <speakers> have a fullname but in the next section I spotted <speaker id="94" />
A simple fix (maybe not the best) :
//untested
var data = from c in xdocument.Root.Descendants("speakers").Descendants("speaker")
select c.Element("fullname").Value;
You may want to specify the path more precise:
xdocument.Element("details").Element("tracks").Element("speakers").
I’ve got a problem witch I’ve been trying to solve almost for a week now, but it seems that, unfortunately, I can’t manage it by myself.
Maybe somebody could help me.
I’ve got this type of source XML:
<data>
<para1>24499</para1>
<para2>32080148</para2>
<para4>20e500cc6008d0f8ab1fd108b220ca261f85edd9</para4>
<para6></para6>
<timetype>4</timetype>
<fkcontent>964342</fkcontent>
<season>0</season>
<fmstoken><![CDATA[7bca3c544ad64e526806fb5a6b845148]]></fmstoken>
<fmstoken_user>32010484</fmstoken_user>
<fmstoken_time>1283165972</fmstoken_time>
<fmstoken_renew><![CDATA[http://www.sky.com/logic/fmstoken.php?method=refresh]]></fmstoken_renew>
<adserverXML><![CDATA[http://www.sky.de/dummy.xml]]></adserverXML>
<playlist>
<videoinfo quality="0" name="DSL 1000">
<id>24499</id>
<noad>1</noad>
<productplacement>0</productplacement>
<filename>http://www.sky.com/video/1/V_53511_BB00_E81016_46324_16x9-lq-512x288-vp6-c0_bbb491b3ce64ef667340a21e2bfb3594.f4v</filename>
<title><![CDATA[Who will be the winner?]]></title>
</videoinfo>
<videoinfo quality="1" name="DSL 2000">
<id>24499</id>
<noad>1</noad>
<productplacement>0</productplacement>
<filename>http://www.sky.de/video/1/V_53513_BB00_E81016_46324_16x9-hq-512x288-vp6-c0_fa948bc5429cf28455779666cc59cf5e.f4v</filename>
<title><![CDATA[Who will be the winner?]]></title>
</videoinfo>
</playlist>
</data>
And here are parts of the code that let me get required tag content from xml page above:
private static string getTagContent(string source, string tag)
{
string fullTagBegin = "<" + tag + ">";
string fullTagEnd = "</" + tag + ">";
int indexBegin = source.IndexOf(fullTagBegin) + fullTagBegin.Length;
int indexEnd = source.IndexOf(fullTagEnd);
int indexLength = indexEnd - indexBegin;
if (indexBegin == -1 || indexEnd == -1)
return "UNKNOWN";
return source.Substring(indexBegin, indexLength);
}
public static void Start(String url)
{
try
{
String urlXML = url;
WebClient wClient = new WebClient();
string sourceXML = wClient.DownloadString(urlXML);
sourceXML = sourceXML.Replace("]]>", "");
sourceXML = sourceXML.Replace("<![CDATA[", "");
String para1 = getTagContent(sourceXML, "para1");
String para2 = getTagContent(sourceXML, "para2");
String para4 = getTagContent(sourceXML, "para4");
String timetype = getTagContent(sourceXML, "timetype");
String fkcontent = getTagContent(sourceXML, "fkcontent");
String season = getTagContent(sourceXML, "season");
String fmstoken = getTagContent(sourceXML, "fmstoken");
String fmstoken_user = getTagContent(sourceXML, "fmstoken_user");
String fmstoken_time = getTagContent(sourceXML, "fmstoken_time");
String fmstoken_renew = getTagContent(sourceXML, "fmstoken_renew");
String filename = getTagContent(sourceXML, "filename").Replace("http://", "");
String title = System.Text.RegularExpressions.Regex.Replace(getTagContent(sourceXML, "title"), #"[^a-zA-Z0-9]","_");
The problem is:
everything works fine except the fact, that there are two "filename" and "title" tags in the source xml, but I need to choose only second ones, those that are under this line:
<videoinfo quality="1" name="DSL 2000">,
and somehow skip/ignore first ones, those that are above previous line and right under this line:
<videoinfo quality="0" name="DSL 1000">
I can't figure out how to do that.
(My only guess is that maybe it has something to do with XPathNavigator, but I’m not sure if that’s a right guess, and anyway, I don’t really understand how to use it properly).
Edit: problem solved.
I want to thank everyone who replied for your suggestions.
Really appreciated!
This is really not the right way to go about working with XML in .Net.
You didn't mention which version of .Net you are developing for. Depending on the version look into using XmlDocument, XDocument / LINQ to XML.
MSDN on LINQ to XML
MSDN on XmlDocument
You should really load the XML into XMlDocument object and then edit it.
But if you prefer to use your existing code, this dirty code should do the trick.
int indexBegin = source.IndexOf(fullTagBegin) == source.LastIndexOf(fullTagBegin) ? source.IndexOf(fullTagBegin) + fullTagBegin.Length : source.LastIndexOf(fullTagBegin) + fullTagBegin.Length;
int indexEnd = source.IndexOf(fullTagEnd) == source.LastIndexOf(fullTagEnd) ? source.IndexOf(fullTagEnd) : source.LastIndexOf(fullTagEnd);
This will move the indexes to the last occurrence of whatever tag you're looking for. Just replace your declarations with this ones.
Edit: Additionally, you use this easy few lines to find/manipulate your XML in a much cleaner way.
XmlDocument doc = new XmlDocument();
doc.Load(filename);
// or doc.LoadXML(fullXMLcode);
var elements = doc.GetElementsByTagName("title");
var element = elements.Item(elements.Count - 1); // returns the last element
// element.InnerText gets the value you need. You can use this property to change it, too
Hope this helps.
You need this XPath expression:
/data/playlist/videoinfo[2]/filename | /data/playlist/videoinfo[2]/title
Or
/data/playlist/videoinfo[2]/*[self::filename or self::title]
These expression return a node set with filename and title element in document order.
In C# (I'm not an expert):
XPathDocument doc = new XPathDocument("document.xml");
XPathNodeIterator nodeset = doc.CreateNavigator()
.Select("/data/playlist/videoinfo[2]/*[self::filename or self::title]");
foreach (XPathNavigator node in nodeset)
{
// Your code
}
As many people have already said, XPath and LINQ are both suitable. Here's LINQ to XML sample:
XDocument doc = XDocument.Load("yourXml.xml");
var result =
(from videoInfo in doc.Descendants("videoinfo")
let quality = videoInfo.Attribute("quality")
let name = videoInfo.Attribute("name")
where (quality != null && quality.Value == "1")
&& (name != null && name.Value == "DSL 2000")
select new
{
Title = videoInfo.Element("title"),
FileName = videoInfo.Element("filename")
}
).First();
string title = result.Title.Value;
string fileName = result.FileName.Value;