Reading and updating xml c updating flat text database files in perl
In the previous post, you learned how to create an xml file from a collection of Book objects with Linq. Save("d:/data.xml"); To delete an element from the xml file, you need to select the element based on your conditions. However, we don't guarantee all things of the web are accurate.
Elements("book") select c; foreach (XElement book in query) xml File.
Load(@"C:\WINDOWS\Temp\exm.xml"); Xml Node root = doc.
My purpose is to give some textboxes to the user so that he can write some information that i want save on the XML file.
After that i want to be able to read every I do not want to work with Grid View.
This class is base class for Xml Text Writer class, which we'll be using in our sample example. Although, this class represents a single node of XML but that could be the root node of an XML document and could represent the entire file.
This class provides many write method to write XML document items.
Here is the XML file created in the previous lesson. Add(new XElement("Book", new XAttribute("title", "AJAX"), new XElement("author", "Khemrin"), new XElement("year", "2000"))); xml Doc. You need to query the elements that meet your criteria. Here is an example code that removes the element that has "Java" title attribute. Load("d:/data.xml"); var elements To Delete = from ele in xml Doc.
By using Linq query expression, you can easily read all elements of the xml file. = null select ele; foreach (var e in elements) The Linq expression to add a new element to the xml file is similary to reading from that file. Save("d:/data.xml"); Simetimes, you might want change or udate a element of xml file. Then assign new values to their attributes or sub-elements.
This class also has a method Skip to skip current node and move to next one. The Xml Text Reader, Xml Node Reader and Xml Validating Reader classes are derived from Xml Reader class.
Read String, Read Inner Xml, Read Outer Xml, and Read Start Element are more read methods.
I am not clear about the concepts and usage of both Xml Text Writer and Xml Node in the same project.Tags: Adult Dating, affair dating, sex dating