--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Chronosv2/source/Extensions/XmlNodeExtensions.cs	Tue Feb 21 17:25:44 2012 +0700
@@ -0,0 +1,177 @@
+using System;
+using System.Xml;
+
+namespace Chronos.Extensions
+{
+    /// <summary>
+    /// Extension methods for the XmlNode / XmlDocument classes and its sub classes
+    /// </summary>
+    public static class XmlNodeExtensions
+    {
+        #region · Extensions ·
+
+        /// <summary>
+        /// Appends a child to a XML node
+        /// </summary>
+        /// <param name="parentNode">The parent node.</param>
+        /// <param name="name">The name of the child node.</param>
+        /// <returns>The newly cerated XML node</returns>
+        public static XmlNode CreateChildNode(this XmlNode parentNode, string name)
+        {
+            XmlDocument document    = (parentNode is XmlDocument ? (XmlDocument)parentNode : parentNode.OwnerDocument);
+            XmlNode     node        = document.CreateElement(name);
+
+            parentNode.AppendChild(node);
+            
+            return node;
+        }
+
+        /// <summary>
+        /// Appends a child to a XML node
+        /// </summary>
+        /// <param name="parentNode">The parent node.</param>
+        /// <param name="name">The name of the child node.</param>
+        /// <param name="namespaceUri">The node namespace.</param>
+        /// <returns>The newly cerated XML node</returns>
+        public static XmlNode CreateChildNode(this XmlNode parentNode, string name, string namespaceUri)
+        {
+            XmlDocument document    = (parentNode is XmlDocument ? (XmlDocument)parentNode : parentNode.OwnerDocument);
+            XmlNode     node        = document.CreateElement(name, namespaceUri);
+            
+            parentNode.AppendChild(node);
+            
+            return node;
+        }
+
+        /// <summary>
+        /// Appends a CData section to a XML node
+        /// </summary>
+        /// <param name="parentNode">The parent node.</param>
+        /// <returns>The created CData Section</returns>
+        public static XmlCDataSection CreateCDataSection(this XmlNode parentNode)
+        {
+            return parentNode.CreateCDataSection(string.Empty);
+        }
+
+        /// <summary>
+        /// Appends a CData section to a XML node and prefills the provided data
+        /// </summary>
+        /// <param name="parentNode">The parent node.</param>
+        /// <param name="data">The CData section value.</param>
+        /// <returns>The created CData Section</returns>
+        public static XmlCDataSection CreateCDataSection(this XmlNode parentNode, string data)
+        {
+            XmlDocument     document    = (parentNode is XmlDocument ? (XmlDocument)parentNode : parentNode.OwnerDocument);
+            XmlCDataSection node        = document.CreateCDataSection(data);
+            
+            parentNode.AppendChild(node);
+            
+            return node;
+        }
+
+        /// <summary>
+        /// Returns the value of a nested CData section.
+        /// </summary>
+        /// <param name="parentNode">The parent node.</param>
+        /// <returns>The CData section content</returns>
+        public static string GetCDataSection(this XmlNode parentNode)
+        {
+            foreach (var node in parentNode.ChildNodes)
+            {
+                if (node is XmlCDataSection)
+                {
+                    return ((XmlCDataSection)node).Value;
+                }
+            }
+
+            return null;
+        }
+
+        /// <summary>
+        /// Gets an attribute value
+        /// </summary>
+        /// <param name="node">The node.</param>
+        /// <param name="attributeName">The Name of the attribute.</param>
+        /// <returns>The attribute value</returns>
+        public static string GetAttribute(this XmlNode node, string attributeName)
+        {
+            return GetAttribute(node, attributeName, null);
+        }
+
+        /// <summary>
+        /// Gets an attribute value
+        /// </summary>
+        /// <param name="node">The node.</param>
+        /// <param name="attributeName">The Name of the attribute.</param>
+        /// <param name="defaultValue">The default value to be returned if no matching attribute exists.</param>
+        /// <returns>The attribute value</returns>
+        public static string GetAttribute(this XmlNode node, string attributeName, string defaultValue)
+        {
+            XmlAttribute attribute = node.Attributes[attributeName];
+            
+            return (attribute != null ? attribute.InnerText : defaultValue);
+        }
+
+        /// <summary>
+        /// Gets an attribute value converted to the specified data type
+        /// </summary>
+        /// <typeparam name="T">The desired return data type</typeparam>
+        /// <param name="node">The node.</param>
+        /// <param name="attributeName">The Name of the attribute.</param>
+        /// <returns>The attribute value</returns>
+        public static T GetAttribute<T>(this XmlNode node, string attributeName)
+        {
+            return GetAttribute<T>(node, attributeName, default(T));
+        }
+
+        /// <summary>
+        /// Gets an attribute value converted to the specified data type
+        /// </summary>
+        /// <typeparam name="T">The desired return data type</typeparam>
+        /// <param name="node">The node.</param>
+        /// <param name="attributeName">The Name of the attribute.</param>
+        /// <param name="defaultValue">The default value to be returned if no matching attribute exists.</param>
+        /// <returns>The attribute value</returns>
+        public static T GetAttribute<T>(this XmlNode node, string attributeName, T defaultValue)
+        {
+            var value = GetAttribute(node, attributeName);
+
+            return (value.IsNotEmpty() ? value.ConvertTo<T>(defaultValue) : defaultValue);
+        }
+
+        /// <summary>
+        /// Creates or updates an attribute with the passed value.
+        /// </summary>
+        /// <param name="node">The node.</param>
+        /// <param name="name">The name.</param>
+        /// <param name="value">The value.</param>
+        public static void SetAttribute(this XmlNode node, string name, object value)
+        {
+            SetAttribute(node, name, value != null ? value.ToString() : null);
+        }
+
+        /// <summary>
+        /// Creates or updates an attribute with the passed value.
+        /// </summary>
+        /// <param name="node">The node.</param>
+        /// <param name="name">The name.</param>
+        /// <param name="value">The value.</param>
+        public static void SetAttribute(this XmlNode node, string name, string value)
+        {
+            if (node != null)
+            {
+                var attribute = node.Attributes[name, node.NamespaceURI];
+                
+                if (attribute == null)
+                {
+                    attribute = node.OwnerDocument.CreateAttribute(name, node.OwnerDocument.NamespaceURI);
+                    node.Attributes.Append(attribute);
+                }
+
+                attribute.InnerText = value;
+            }
+        }
+
+        #endregion
+    }
+}
\ No newline at end of file