LINQ TO XML EBOOK
LINQ XML - Learn LINQ (Language Integrated Query) in simple and easy steps starting from basic to advanced concepts with examples including Overview. In this article, we will learn LINQ To XML using some 'How Do I' kind of examples. This tutorial has been divided into 2 sections: Section 1: Read XML and. Editorial Reviews. About the Author. Paolo Pialorsi is a consultant, trainer, and author who NET Framework 4 (Developer Reference) eBook: Marco Russo, Paolo Pialorsi: objects, and XML files -- directly from Microsoft Visual Basic or C#.
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Transforming XML LINQ to XML transformations □. Transforming LINQ to. XML objects with XSLT Summary cittadelmonte.info Fluent and Query Expression Styles. LINQ Query Operators. LINQ to XML. Interpreted Queries. Parallel LINQ. LINQ Tools and Resources. Linq to xml in c#, cittadelmonte.info with example. The linq to xml is a programming interface which enable us to write linq queries on XML documents to get required data.
The entire source of the article in C and VB. The VB. NET Converting tool. This article has been editorially reviewed by Suprotim Agarwal. C and. Organized around concepts, this eBook aims to provide a concise, yet solid foundation in C and.
WriteLine "Using XDocument" ;. WriteLine "Using XElement". ElementAt 1. WriteLine emp. WriteLine "". WriteLine "Using XDocument". List the details of the first 2 Employees. Take 2 ;. Take 2. For Each emp In emps. Next emp. List the 2nd and 3rd Employees. Skip 1. We have been posting the entire elements as output in our previous examples.
Let us say that you want to display only the Employee Name, use this query: Element "Name" ;. If you notice, the results are not ordered i. To order the results, just add call Reverse again while filtering as shown below: Reverse ;.
Count the number of Employees living in the state CA. Count ;. The new Element gets added as the last element of the XML document. Add new XElement "Employee" ,. Write xEle ;. New XElement "Name" , "George". Write xEle. In the previous example, by default the new Element gets added to the end of the XML document.
AddFirst new XElement "Employee" ,. To add an attribute to an Element, use the following code: New XAttribute "Type" , "Home". Elements "Address". Elements "Country". ToList ;. Next cEle.
Using XML With LINQ Cookbook
Elements "Phone". RemoveAttributes ;. Next pEle. We are deleting the entire Address Element. SetElementValue "Address" , null ;.
SetElementValue "Address" , Nothing. Next addEle. SetElementValue can also be used to Update the content of an Element. Descendants "Employee" ;. Remove ;. All the manipulations we have done so far were in the memory and were not persisted in the XML file. You just need to call the Save method. Save "..
LINQ to XML - Tutlane
ReadLine ;. Was this article worth reading? Share it with fellow developers too. Feedback - Leave us some adulation, criticism and everything in between! Hats off to u. Waiting for next superb article. Comment posted by Meena Damwani on Thursday, August 30, 8: Thanks a lot.. Comment posted by Mr.
B on Monday, September 24, Comment posted by mat on Tuesday, October 2, 3: Comment posted by Purushottam on Friday, November 16, 5: GR8 articel Comment posted by Bhumi on Saturday, November 17, 1: Comment posted by Sudha Vijayakumar on Monday, November 26, 8: Thank you very much.
Comment posted by BW on Monday, December 3, Comment posted by Monir on Friday, December 7, Comment posted by Kiri on Saturday, December 15, 9: Comment posted by Eaglesd on Monday, December 17, 9: Thanks for sharing your knowledge. Comment posted by Reza Khan on Thursday, December 27, Comment posted by srinivas M on Saturday, January 12, 6: Helps a lot for beginners.
Comment posted by shawn kountz on Friday, January 25, Comment posted by Abdur Rahman on Monday, February 4, 5: Comment posted by Bishoy Wasfy on Monday, February 11, 6: Comment posted by Upendra on Tuesday, February 12, 8: The element "student" is contained within top level element "students". Comment posted by Joop Hooymans on Thursday, February 14, My correction dis his work well: Load "D: Elements "Employee" Where address.
Comment posted by Brian on Sunday, February 17, 8: You covered every scenario I can think of. All answered, thank you! Comment posted by Suprotim Agarwal on Wednesday, February 20, Seems to be working fine. What error do you get? Glad it helped: Comment posted by aman goel on Thursday, March 21, 4: I can not able to add new record in my existing xml file. Comment posted by Venki on Tuesday, April 2, Comment posted by Pooja Gaur on Thursday, April 4, 4: I have learnt a lot from it.
From beginner to experts,everybody can get profit from this. Comment posted by Dmitrij on Friday, April 19, 1: Comment posted by Gaurang Naik on Monday, May 6, 1: Contributions like such keeps the programming going.
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Second, I will likely keep coming back here from time to time as it is a great repository and a good place to refresh my memory when I am looking to do stuff. One thing missing that can be difficult to find I am looking for it now , is how to take a node and convert its children to attributes, and the reverse. Thanks again! Comment posted by karl on Wednesday, October 30, 1: Comment posted by rajesh on Wednesday, November 20, Comment posted by Rob on Tuesday, November 26, 9: Great job! Many thanks.
Comment posted by Rick Eis on Monday, December 9, Comment posted by Girdar on Friday, December 13, 3: Comment posted by Shivaraj on Thursday, December 19, 1: Comment posted by Anonymous on Friday, December 20, Comment posted by Jakir Chowdhury on Sunday, December 29, I am trying to use linq to return multiple fields and at the same time apply sorting.
Can you please post an article describing how to do this? Thank you very much in advance. Comment posted by James Watson on Monday, April 21, 6: Descendants "Key. Skip 0. Take 1. Comment posted by Aron on Thursday, May 8, 6: Comment posted by mimarfe on Saturday, May 10, 2: Comment posted by Fernando Novoa on Monday, May 12, Like 3. Join the DZone community and get the full member experience.
Join For Free. What a great idea! Let's look at an example XML document. Node - A node is any type inside an XML document. The root node for this particular document is Locations , which hold two other nodes Location and each location node holds area nodes. Text can be a node type like "Magic Kingdom.
Element - An element is a type of node and includes everything inbetween the beginning tag to the ending tag. For example, the first element under the first Location element is Magic Kingdom. How do you load XML? There are multiple ways to load an XML document. One way is to create the XML document from a string. LoadXml xml ; Another way is to load it through a file. Load "C: How do you create an XDocument "document? To set all of the descendants to a namespace, set their localname to the namespace.
Add new XAttribute XNamespace. This will grab all of the attractions throughout the entire Xml document.
This gets a little trickier as we dig down into the XML document. First, you need to get the parent element Location. Elements "Location".
LINQ to XML
Element "Title". Elements "Area".
Elements "Attractions". Elements "Attraction". How do you return sorted elements?