using System; using System.Collections.Generic; using System.Text; using System.Xml; class Program { static void Main(string[] args) { XmlDocument documentation = new XmlDocument(); documentation.Load("DocumentedClasses.xml"); XmlNodeList memberNodes = documentation.SelectNodes("//member"); List<XmlNode> typeNodes = new List<XmlNode>(); foreach (XmlNode node in memberNodes) { if (node.Attributes["name"].Value.StartsWith("T")) { typeNodes.Add(node); } } foreach (XmlNode node in typeNodes) { Console.WriteLine("- {0}", node.Attributes["name"].Value.Substring(2)); } } }
XML-RPC
Reading from an XML file.
using System; using System.Xml; public class MainClass { public static void Main(string[] args) { XmlTextReader reader = new XmlTextReader(args[0]); while (reader.Read()) { switch (reader.NodeType) { case XmlNodeType.Element: // The node is an Element Console.WriteLine("Element: " + reader.Name); while (reader.MoveToNextAttribute()) // Read attributes Console.WriteLine(" Attribute: [" + reader.Name + "] = '" + reader.Value + "'"); break; case XmlNodeType.DocumentType: // The node is a DocumentType Console.WriteLine("Document: " + reader.Value); break; case XmlNodeType.Comment: Console.WriteLine("Comment: " + reader.Value); break; } } reader.Close(); } }
Writing XML with the XmlWriter Class
using System; using System.IO; using System.Xml; class MainClass { static public void Main() { XmlTextWriter XmlWriter = new XmlTextWriter(Console.Out); XmlWriter.WriteStartDocument(); XmlWriter.WriteComment("This is the comments."); XmlWriter.WriteStartElement("BOOK"); XmlWriter.WriteElementString("TITLE", "this is the title."); XmlWriter.WriteElementString("AUTHOR", "I am the author."); XmlWriter.WriteElementString("PUBLISHER", "who is the publisher"); XmlWriter.WriteEndElement(); XmlWriter.WriteEndDocument(); } }
Convert an XmlNode to an object
#region License and Copyright /* * Dotnet Commons Xml * * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the * Free Software Foundation, Inc., * 59 Temple Place, * Suite 330, * Boston, * MA 02111-1307 * USA * */ #endregion using System; using System.Collections; using System.Collections.Specialized; using System.Diagnostics; using System.IO; using System.Reflection; using System.Text; using System.Text.RegularExpressions; using System.Xml; using System.Xml.Xsl; using System.Xml.Serialization; //using Dotnet.Commons.Reflection; namespace Dotnet.Commons.Xml { /// /// <summary> /// This utility class contains wrapper functions that help to ease the handling and /// manipulation of Xml documents, such as adding an element, adding an attribute /// to an element, copying and cloning of nodes, etc. /// /// </summary> /// public abstract class XmlUtils { /// <summary> /// Convert an XmlNode to an object /// </summary> /// <param name="node"></param> /// <param name="targetObj"></param> /// <returns></returns> /// ----------------------------------------------------------- public static object FromXmlNodeWithAttributes(XmlNode node, object targetObj) { if (node.Attributes.Count == 0) return targetObj; foreach( XmlAttribute attr in node.Attributes) { string propertyName = attr.Name; string propertyValue = attr.Value; PropertyInfo pi = targetObj.GetType().GetProperty(propertyName); if (pi != null) pi.SetValue(targetObj, Convert.ChangeType(propertyValue, pi.PropertyType), null); else // search if such field exists { FieldInfo fi = targetObj.GetType().GetField(propertyName); if (fi != null) fi.SetValue(targetObj, Convert.ChangeType(propertyValue, fi.FieldType)); } } return targetObj; } } }
Alphabetical sorting of the XmlNodes
#region License and Copyright
/*
* Dotnet Commons Xml
*
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place,
* Suite 330,
* Boston,
* MA 02111-1307
* USA
*
*/
#endregion
using System;
using System.Collections;
using System.Collections.Specialized;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
using System.Xml.Xsl;
using System.Xml.Serialization;
//using Dotnet.Commons.Reflection;
namespace Dotnet.Commons.Xml
{
///
///
/// manipulation of Xml documents, such as adding an element, adding an attribute
/// to an element, copying and cloning of nodes, etc.
///
///
///
public abstract class XmlUtils
{
// #################################################################### //
// These code is derived from Mainsoft.com //
// http://www.koders.com/csharp/fid439BB5BEF93D1AEFAF0B9206236AB0ECE49BC229.aspx
// #################################################################### //
/// ———————————————————–
///
/// and their attributes in the
///
///
public static void SortXml(XmlDocument document)
{
SortXml(document.DocumentElement);
}
/// ———————————————————–
///
/// elements and
///
/// The root to be sorted.
/// ———————————————————–
public static void SortXml(XmlNode rootNode)
{
SortAttributes(rootNode.Attributes);
SortElements(rootNode);
foreach (XmlNode childNode in rootNode.ChildNodes)
{
SortXml(childNode);
}
}
/// ———————————————————–
///
/// It uses the bubble sort algorithm.
///
/// The attribute collection to be sorted.
/// ———————————————————–
public static void SortAttributes(XmlAttributeCollection attribCol)
{
if (attribCol == null)
return;
bool hasChanged = true;
while (hasChanged)
{
hasChanged = false;
for (int i = 1; i < attribCol.Count; i++)
{
if (String.Compare(attribCol[i].Name, attribCol[i-1].Name, true) < 0)
{
//Replace
attribCol.InsertBefore(attribCol[i], attribCol[i - 1]);
hasChanged = true;
}
}
}
}
/// -----------------------------------------------------------
///
/// It uses the bubble sort algorithm.
///
/// The node in which its childNodes are to be sorted.
/// ———————————————————–
public static void SortElements(XmlNode node)
{
bool changed = true;
while (changed)
{
changed = false;
for (int i = 1; i < node.ChildNodes.Count; i++)
{
if (String.Compare(node.ChildNodes[i].Name, node.ChildNodes[i-1].Name, true) < 0)
{
//Replace:
node.InsertBefore(node.ChildNodes[i], node.ChildNodes[i-1]);
changed = true;
}
}
}
}
}
}
[/csharp]
Set the value to the Element
#region License and Copyright /* * Dotnet Commons Xml * * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the * Free Software Foundation, Inc., * 59 Temple Place, * Suite 330, * Boston, * MA 02111-1307 * USA * */ #endregion using System; using System.Collections; using System.Collections.Specialized; using System.Diagnostics; using System.IO; using System.Reflection; using System.Text; using System.Text.RegularExpressions; using System.Xml; using System.Xml.Xsl; using System.Xml.Serialization; //using Dotnet.Commons.Reflection; namespace Dotnet.Commons.Xml { /// /// <summary> /// This utility class contains wrapper functions that help to ease the handling and /// manipulation of Xml documents, such as adding an element, adding an attribute /// to an element, copying and cloning of nodes, etc. /// /// </summary> /// public abstract class XmlUtils { /// ----------------------------------------------------------- /// <summary> /// Set the value to the Element /// </summary> /// <param name="node">the node to set the value </param> /// <param name="nodeValue">Value to set</param> /// <exception cref="XmlException"> /// Thrown if XmlNode is not an element or node is /// not a text node (no child nodes) /// </exception> /// ----------------------------------------------------------- public static void SetNodeValue( XmlNode node, object nodeValue ) { if (node == null) throw new ArgumentNullException("node"); if (node.NodeType != XmlNodeType.Element) throw new XmlException("Node is not an element."); if (node.ChildNodes.Count > 0) throw new XmlException("Node is not a text node as it has child nodes."); node.AppendChild(node.OwnerDocument.CreateTextNode(nodeValue.ToString())); } /// ------------------------------------------------------------------ /// <summary> /// Set the value to a node /// </summary> /// <param name="parentNode">parentNode to start search from</param> /// <param name="xpath">XPath to the child node</param> /// <param name="nodeValue">the new value to set to</param> /// <exception cref="ArgumentNullException">Thrown if parentNode is null</exception> /// <exception cref="ArgumentException">Thrown if no text node is found at the xpath provided.</exception> /// <exception cref="XmlException">Thrown if node to set the value is not a text node (ie. no child nodes)</exception> /// ------------------------------------------------------------------ public static void SetNodeValue(XmlNode parentNode, string xpath, object nodeValue) { if (parentNode == null) throw new ArgumentNullException("parentNode"); XmlNode childNode = parentNode.SelectSingleNode(xpath); if(childNode == null) throw new ArgumentException(String.Format("No node is not found at the path specified '{0}'", xpath), "xpath"); if (childNode.ChildNodes.Count > 0) throw new XmlException("Child node is not a text node as it has child nodes."); childNode.InnerText = nodeValue.ToString(); } /// ----------------------------------------------------------- /// <summary> /// Set a blog of binary data encoded with Base64 to an XML element. /// </summary> /// <param name="node">the node to set the blog of data</param> /// <param name="byteArray">an array of bytes containing the actual data</param> /// <exception cref="XmlException">Thrown if XmlNode is not an element or /// node is not a text node (no child nodes)</exception> /// ----------------------------------------------------------- public static void SetNodeBase64BinaryValue( XmlNode node, byte[] byteArray ) { if (node.NodeType != XmlNodeType.Element) throw new XmlException("Node is not an element."); if (node.ChildNodes.Count > 0) throw new XmlException("Node is not a text node as it has child nodes."); // Convet byte array into Base64 string string encodedData = Convert.ToBase64String(byteArray); node.AppendChild(node.OwnerDocument.CreateTextNode(encodedData)); } /// ----------------------------------------------------------- /// <summary> /// Encode a value to Base64 and set it to the node. /// </summary> /// <param name="node">the node to set the value</param> /// <param name="value">value to set to the node</param> /// <exception cref="XmlException">Thrown if XmlNode is not an element /// or node is not a text node (no child nodes)</exception> /// ----------------------------------------------------------- public static void SetNodeBase64EncodedValue( XmlNode node, object value) { if (value is byte[]) SetNodeBase64BinaryValue(node, (byte[])value); if (node.NodeType != XmlNodeType.Element) throw new XmlException("Node is not an element."); if (node.ChildNodes.Count > 0) throw new XmlException("Node is not a text node as it has child nodes."); // Convet byte array into Base64 string ASCIIEncoding encoding = new ASCIIEncoding(); byte[] bytes = encoding.GetBytes(value.ToString()); SetNodeBase64BinaryValue(node, bytes); } } }
Get the Xml Text node value
#region License and Copyright /* * Dotnet Commons Xml * * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the * Free Software Foundation, Inc., * 59 Temple Place, * Suite 330, * Boston, * MA 02111-1307 * USA * */ #endregion using System; using System.Collections; using System.Collections.Specialized; using System.Diagnostics; using System.IO; using System.Reflection; using System.Text; using System.Text.RegularExpressions; using System.Xml; using System.Xml.Xsl; using System.Xml.Serialization; //using Dotnet.Commons.Reflection; namespace Dotnet.Commons.Xml { /// /// <summary> /// This utility class contains wrapper functions that help to ease the handling and /// manipulation of Xml documents, such as adding an element, adding an attribute /// to an element, copying and cloning of nodes, etc. /// /// </summary> /// public abstract class XmlUtils { /// ------------------------------------------------------------------- /// <summary> /// Get the Xml Text node value /// </summary> /// <param name="parentNode"></param> /// <param name="xPath"></param> /// <returns></returns> /// ------------------------------------------------------------------- public static string GetTextNodeValueFromXPath(XmlNode parentNode, string xPath) { XmlNode node = parentNode.SelectSingleNode(xPath); if (node == null) return String.Empty; if (node.NodeType == XmlNodeType.Text || node.NodeType== XmlNodeType.Attribute) return node.Value; if (node.NodeType == XmlNodeType.Element) { try { if (node.FirstChild.NodeType == XmlNodeType.Text) return node.InnerText; } catch { //Do Nothing } } return String.Empty; } } }