Mike; Everytime I need to modify an XML document I work it this way: //Here is the variable with which you assign a new value to the attribute string newValue = string.Empty; XmlDocument xmlDoc = new XmlDocument(); xmlDoc.Load(xmlFile); XmlNode node = xmlDoc.SelectSingleNode(“Root/Node/Element”); node.Attributes[0].Value = newValue; xmlDoc.Save(xmlFile); //xmlFile is the path of your file to be … Read more
Microsoft has an XML diff API that you can use. Unofficial NuGet: https://www.nuget.org/packages/XMLDiffPatch.
I’ve generally looked at it not from a fastest perspective, but rather from a memory utilization perspective. All of the implementations have been fast enough for the usage scenarios I’ve used them in (typical enterprise integration). However, where I’ve fallen down, and sometimes spectacularly, is not taking into account the general size of the XML … Read more
XmlNodeList elemList = doc.GetElementsByTagName(…); for (int i = 0; i < elemList.Count; i++) { string attrVal = elemList[i].Attributes[“SuperString”].Value; }
Use XmlDocument.Load() method to load XML from your file. Then use XmlDocument.InnerXml property to get XML string. XmlDocument doc = new XmlDocument(); doc.Load(“path to your file”); string xmlcontents = doc.InnerXml;
Based on the other answers, I looked into XmlTextWriter and came up with the following helper method: static public string Beautify(this XmlDocument doc) { StringBuilder sb = new StringBuilder(); XmlWriterSettings settings = new XmlWriterSettings { Indent = true, IndentChars = ” “, NewLineChars = “\r\n”, NewLineHandling = NewLineHandling.Replace }; using (XmlWriter writer = XmlWriter.Create(sb, settings)) … Read more
Assuming doc is your instance of org.w3c.dom.Document: TransformerFactory tf = TransformerFactory.newInstance(); Transformer transformer = tf.newTransformer(); transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, “yes”); StringWriter writer = new StringWriter(); transformer.transform(new DOMSource(doc), new StreamResult(writer)); String output = writer.getBuffer().toString().replaceAll(“\n|\r”, “”);
Thanks to Jeremy Lew’s answer and a bit more playing around, I figured out how to remove blank xmlns attributes: pass in the root node’s namespace when creating any child node you want not to have a prefix on. Using a namespace without a prefix at the root means that you need to use that … Read more
Assuming xmlDoc is an XmlDocument object whats wrong with xmlDoc.OuterXml? return xmlDoc.OuterXml; The OuterXml property returns a string version of the xml.
If you’re using .NET version 3.0 or lower, you have to use XmlDocument aka the classic DOM API. Likewise you’ll find there are some other APIs which will expect this. If you get the choice, however, I would thoroughly recommend using XDocument aka LINQ to XML. It’s much simpler to create documents and process them. … Read more