Creating an XHTML Editor in Code > Performing Other Common Tasks > Selecting a Paragraph using the XmlDocument |
To perform the same task using the XmlDocument object model, you would use this code:
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void selectXmlNode_Click(object sender, EventArgs e) { // find 6th node in document XmlDocument doc = c1Editor1.Document; XmlNodeList nodes = SelectNodes(doc, "/html/body/p"); if (nodes.Count > 5) { XmlNode node = nodes[5]; C1TextRange range = c1Editor1.CreateRange(); range.MoveTo(node); range.Select(); } } |
The code is considerably simpler. It retrieves the current document from the C1Editor, and then uses the SelectNodes helper method to get a list of all paragraph tags. It then creates a C1TextRange object, moves this new range to the node that represents the sixth paragraph in the document, and selects the range using the C1TextRange's Select method.
The SelectNodes method is a handy utility that takes care of XML namespaces by automatically creating and using an XmlNamespaceManager (this is standard XmlDocument logic, not directly related to the C1Editor):
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XmlNodeList SelectNodes(XmlDocument doc, string xpath) { if (doc.DocumentElement.Attributes["xmlns"] != null) { // add namespace manager string xmlns = doc.DocumentElement.Attributes["xmlns"].Value; XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable); nsmgr.AddNamespace("x", xmlns); xpath = xpath.Replace("/", "/x:"); return doc.SelectNodes(xpath, nsmgr); } else { return doc.SelectNodes(xpath); } } |