I am trying to get rid of the parent node of a collection in xml (using linq-to-xml):
For example, the input xml:
<envelop>
<books>
<book>
<title>ABC</title>
<publishedDate>2012-12-12</publishedDate>
<authors>
<author>John Smith</author>
<author>Bob Doe</author>
</authors>
<book>
<book>
<title>XYZ</title>
<publishedDate>2013-03-06</publishedDate>
<authors>
<author>Henry Blah</author>
<author>Bob Doe</author>
</authors>
<book>
</books>
</envelop>
I would like the result to be:
<envelop>
<book>
<title>ABC</title>
<publishedDate>2012-12-12</publishedDate>
<author>John Smith</author>
<author>Bob Doe</author>
<book>
<book>
<title>XYZ</title>
<publishedDate>2013-03-06</publishedDate>
<author>Henry Blah</author>
<author>Bob Doe</author>
<book>
</envelop>
The nodes: <books> and <authors> are gone - only their children remain.
I saw the following question but with XSLT (Remove parent nodes from xml with xslt). Would like to stay away from XSLT at the moment.
var document = XDocument.Load(validXmlFilePath);
while (document.Descendants("authors").Any())
{
var x = document.Descendants("authors").First();
x.AddAfterSelf(x.Nodes());
x.Remove();
}
var result = document.Descendants("book");
Do you fill your object in code and than serialize it? If so, you can use [XmlElement("Book")] attribute above your list property in your class:
[XmlElement("Book")]
public List<Book> Books {get; set;}
In VB the code would be
Dim result As XElement = <envelop></envelop>
result.Add(xe...<book>)
For Each el As XElement In result...<author>.ToList
el.Parent.Parent.Add(New XElement(el))
Next
result...<authors>.Remove()
with xe defined as
Dim xe As XElement
'to load from a file
' xe = XElement.Load("Your Path Here")
' for testing
xe = <envelop>
<books>
<book>
<title>ABC</title>
<publishedDate>2012-12-12</publishedDate>
<authors>
<author>John Smith</author>
<author>Bob Doe</author>
</authors>
</book>
<book>
<title>XYZ</title>
<publishedDate>2013-03-06</publishedDate>
<authors>
<author>Henry Blah</author>
<author>Bob Doe</author>
</authors>
</book>
</books>
</envelop>
result looks like
<envelop>
<book>
<title>ABC</title>
<publishedDate>2012-12-12</publishedDate>
<author>John Smith</author>
<author>Bob Doe</author>
</book>
<book>
<title>XYZ</title>
<publishedDate>2013-03-06</publishedDate>
<author>Henry Blah</author>
<author>Bob Doe</author>
</book>
</envelop>
Related
I have xml document similar to xml in page http://www.w3schools.com/xml/xml_xpath.asp
<?xml version="1.0" encoding="UTF-8"?>
<bookstore>
<book category="cooking">
<title lang="en">Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="children">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>29.99</price>
</book>
<book category="web">
<title lang="en">XQuery Kick Start</title>
<author>James McGovern</author>
<author>Per Bothner</author>
<author>Kurt Cagle</author>
<author>James Linn</author>
<author>Vaidyanathan Nagarajan</author>
<year>2003</year>
<price>49.99</price>
</book>
<book category="web">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>2003</year>
<price>39.95</price>
</book>
</bookstore>
the problem is how to return this document with elements corresponding to a certain value? how to XPath or XQuery command should be written ?
for example search for title contains 'Learning' then the return xml doc should be like:
<?xml version="1.0" encoding="UTF-8"?>
<bookstore>
<book category="web">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>2003</year>
<price>39.95</price>
</book>
</bookstore>
how to get this result?
another question how to search with ignoring characters case, so 'learNING' should return the same result?
Using XQuery you can do as follow :
<bookstore>
{
for $d in //book[contains(lower-case(title),'learning')]
return $d
}
</bookstore>
Xpathtester Demo
Notice that there will be only one <bookstore> that wraps all matched <book> elements returned, and notice the use of lower-case() function to 'ignore' character case of the book title in the matching process.
Use XML Linq
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication1
{
class Program
{
const string FILENAME = #"c:\temp\test.xml";
static void Main(string[] args)
{
XDocument doc = XDocument.Load(FILENAME);
List<XElement> book = doc.Descendants("book").Where(x => x.Element("title").Value.Contains("Learn")).ToList();
XDocument filteredDoc = XDocument.Parse("<?xml version=\"1.0\" encoding=\"UTF-8\"?><bookstore></bookstore>");
XElement root = (XElement)filteredDoc.FirstNode;
root.Add(book);
}
}
}
for $d in doc('books')//book[title[contains(text(),'Beginning')]]
return <bookstore> {$d} </bookstore>
However this solution does not handle ignoring character case.
I am trying to Join two XML based on the same elements, but my code doesn't return anything. The var result is empty. Can someone please help to sovle the problem? Many thanks in advance!
file one:
<bookstore>
<book>
<bookID>100</bookID>
<name> The cat in the hat </name>
</book>
<book>
<bookID>90</bookID>
<name> another book </name>
</book>
<book>
<bookID>103</bookID>
<name> a new book </name>
</book>
</bookstore>
file two
<bookstore>
<book>
<bookID>100</bookID>
<content> story </content>
</book>
<book>
<bookID>90</bookID>
<content> fiction </content>
</book>
<book>
<bookID>103</bookID>
<content> bio </content>
</book>
</bookstore>
the result I'm looking for is something like:
<result>
<bookInfo>
<bookID>103</bookID>
<name> a new book </name>
<content> bio </content>
<bookInfo>
</result>
The (wrong) code I am currently using is:
var reslut =
from a in fileone.Descendants("bookstore")
join b in filetwo.Descendants("bookstore")
on (string)fileone.Descendants("bookID").First() equals (string)filetwo.Descendants(""bookID"").First()
select new XElement("bookInfo", a, b);
You want to join <book> elements on <bookID> child value, and then return<bookInfo> elements containing bookID, name, and content elements :
var bookInfos =
from a in fileone.Descendants("book")
join b in filetwo.Descendants("book")
on (string)a.Element("bookID") equals (string)b.Element("bookID")
select new XElement("bookInfo",
a.Element("bookID"),
a.Element("name"),
b.Element("content")
);
var result = new XElement("result", bookInfos);
Console.WriteLine(result.ToString());
Dotnetfiddle Demo
output :
<result>
<bookInfo>
<bookID>100</bookID>
<name> The cat in the hat </name>
<content> story </content>
</bookInfo>
<bookInfo>
<bookID>90</bookID>
<name> another book </name>
<content> fiction </content>
</bookInfo>
<bookInfo>
<bookID>103</bookID>
<name> a new book </name>
<content> bio </content>
</bookInfo>
</result>
Hi all
I have a xml file:
<bookstore>
<book category="COOKING">
<title lang="en">Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="CHILDREN">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>30</price>
</book>
<book category="CHILDREN">
<title lang="en">abc</title>
<author>bcd</author>
<year>2006</year>
<price>29</price>
</book>
<book category="WEB">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>2003</year>
<price>39.95</price>
</book>
</bookstore>
How to I can get price list when category = "CHILDREN"? I using C#.
example: Output is : price of Harry Potter is 30 and price of abc is 29
Thank,
You can use LINQ to XML. Following code will return collection of anonymous type instances with all data from your XML:
var xDoc = XDocument.Load("Input.txt");
var books = xDoc.Root
.Elements("book")
.Where(b => (string)b.Attribute("category") == "CHILDREN")
.Select(b => new
{
Title = (string)b.Element("title"),
Author = (string)b.Element("author"),
Year = (int)b.Element("year"),
Price = (decimal)b.Element("price")
});
You can call .First() method on books to get only one/first found item.
I have a simple xmlfile and that is placed in a treeview
<bookstore xmlns="generic">
<book genre="Book" >`
<title>Book of Benjamin Franklin</title>
<author>
<first-name>Benson</first-name>
<last-name>Frank</last-name>
</author>
<price>89.88</price>
</book>
<book genre="autobiography">
<title>The Autobiography of Benjamin Franklin</title>
<author>
<first-name>Ben</first-name>
<middlename />
<last-name>Franklin</last-name>
</author>
<price>89.88</price>
</book>
<book genre="novel" >
<title>The Confidence Man</title>
<author>
<first-name>John</first-name>
<last-name>Melville</last-name>
</author>
<price>11.99</price>
</book>
</bookstore>
I want to replace (2nd element)
<book genre="autobiography" >
<title>The Autobiography of Benjamin Franklin</title>
<author>
<first-name>Ben</first-name>
<middlename />
<last-name>Franklin</last-name>
</author>
<price>89.88</price>
</book>
with an another element(that is edited and i have edited portion as a string)
<book genre="autobiography">
<title>The Autobiography of Benjamin Franklin</title>
<author>
<first-name>Ben</first-name>
<last-name>Franklin</last-name>
</author>
<price>89.88</price>
</book>
Code I used is here
XElement XmlTree = XElement.Parse(text);//text contain edited portion
XmlElement XMLE = (XmlElement)TreeV.SelectedItem;
XmlDocument xdoc = new XmlDocument();
xdoc.Load(scd_file);
XmlDocumentFragment xfrag = xdoc.CreateDocumentFragment();
xfrag.InnerXml = text;
XmlDocumentFragment xfrag1 = xdoc.CreateDocumentFragment();
xfrag1.InnerXml = XMLE.OuterXml;
xdoc.ReplaceChild(xfrag, xfrag1);
But it shows error (xfrag1 is not a node of xdoc)
please help me to solve this problem.
thank u all i got the solution.
XmlElement XMLE = (XmlElement)TreeV.SelectedItem;// selection from treeview(TreeV) that we want to edit (2nd element)
XmlDocument XD = new XmlDocument();
XD.LoadXml(text);// text is edited part save as a string
XmlNode root=XD.DocumentElement;
XmlDocument xml = XMLE.ParentNode.OwnerDocument;
XmlNode import= xml.ImportNode(root, true);
XMLE.ParentNode.ReplaceChild(import, XMLE);
xml.Save(scd_file); //scd_file path
I am trying to read the book.xml file provided as an example on the MSDN website.
<?xml version="1.0" encoding="utf-8" ?>
<bookstore>
<book genre="autobiography" publicationdate="1981-03-22" ISBN="1-861003-11-0">
<title>The Autobiography of Benjamin Franklin</title>
<author>
<first-name>Benjamin</first-name>
<last-name>Franklin</last-name>
</author>
<price>8.99</price>
</book>
<book genre="novel" publicationdate="1967-11-17" ISBN="0-201-63361-2">
<title>The Confidence Man</title>
<author>
<first-name>Herman</first-name>
<last-name>Melville</last-name>
</author>
<price>11.99</price>
</book>
<book genre="philosophy" publicationdate="1991-02-15" ISBN="1-861001-57-6">
<title>The Gorgias</title>
<author>
<name>Plato</name>
</author>
<price>9.99</price>
</book>
</bookstore>
I have the following code until now:
static void Main()
{
XmlDocument document = new XmlDocument();
document.Load(#"c:\books.xml");
XPathNavigator navigator = document.CreateNavigator();
XPathNodeIterator nodes = navigator.Select("/bookstore/book");
while (nodes.MoveNext())
{
Console.WriteLine(nodes.Current.HasAttributes);
}
}
It seems this code is reading everything, but from here on if I want to display, say, just the titles of all book etc., how do I access them?
You can iterate over the titles if you change the XPath expression to select all title nodes:
XPathDocument document = new XPathDocument(#"c:\tmp\smpl5.xml");
XPathNavigator navigator = document.CreateNavigator();
XPathNodeIterator nodes = navigator.Select("/bookstore/book/title");
foreach (XPathNavigator item in nodes)
{
Console.WriteLine(item.Value);
}
Note that you don't need to create an XmlDocument if you don't plan to modify the document. Using an XPathDocument is usually more light-weight.
you can also use this "//title" instead of "/bookstore/book"