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copied!<p>Lots of people have been talking about XML, it's a good idea. However, if Linq is available for you, you shoudl <strong>really</strong> consider using <a href="http://msdn.microsoft.com/en-us/library/bb387098.aspx" rel="nofollow noreferrer">Linq to XML</a> instead of SAX/DOM parsing.</p> <p>Linq to XML makes it easier to parse, create and edit XML file compared to SAX and DOM parser. Using SAX/DOM parsing usually requires a lot of loops to get to the correct element or to navigate trough the nodes.</p> <p>Example taken from MSDN :<br> Using DOM Parsing :</p> <pre><code>XmlDocument doc = new XmlDocument(); XmlElement name = doc.CreateElement("Name"); name.InnerText = "Patrick Hines"; XmlElement phone1 = doc.CreateElement("Phone"); phone1.SetAttribute("Type", "Home"); phone1.InnerText = "206-555-0144"; XmlElement phone2 = doc.CreateElement("Phone"); phone2.SetAttribute("Type", "Work"); phone2.InnerText = "425-555-0145"; XmlElement street1 = doc.CreateElement("Street1"); street1.InnerText = "123 Main St"; XmlElement city = doc.CreateElement("City"); city.InnerText = "Mercer Island"; XmlElement state = doc.CreateElement("State"); state.InnerText = "WA"; XmlElement postal = doc.CreateElement("Postal"); postal.InnerText = "68042"; XmlElement address = doc.CreateElement("Address"); address.AppendChild(street1); address.AppendChild(city); address.AppendChild(state); address.AppendChild(postal); XmlElement contact = doc.CreateElement("Contact"); contact.AppendChild(name); contact.AppendChild(phone1); contact.AppendChild(phone2); contact.AppendChild(address); XmlElement contacts = doc.CreateElement("Contacts"); contacts.AppendChild(contact); doc.AppendChild(contacts); </code></pre> <p>Using Linq to XML :</p> <pre><code>XElement contacts = new XElement("Contacts", new XElement("Contact", new XElement("Name", "Patrick Hines"), new XElement("Phone", "206-555-0144", new XAttribute("Type", "Home")), new XElement("phone", "425-555-0145", new XAttribute("Type", "Work")), new XElement("Address", new XElement("Street1", "123 Main St"), new XElement("City", "Mercer Island"), new XElement("State", "WA"), new XElement("Postal", "68042") ) ) ); </code></pre> <p>Easier to do and much more clear.</p> <p><strong>Edit:</strong><br> Save the XML tree to contacts.xml :</p> <pre><code>// using the code above contact.Save("contacts.xml"); </code></pre> <p>Load the contacts.xml file :</p> <pre><code>//using the code above XDocument contactDoc = XDocument.Load("contacts.xml"); </code></pre> <p>To update an element of the tree there is a few functions in the <a href="http://msdn.microsoft.com/en-us/library/bb387052.aspx" rel="nofollow noreferrer">doc</a> that can do it depending on what you want to do</p>

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