Initial commit

Xml/XmlExtensions.cs

@@ -0,0 +1,142 @@
+using System;
+using System.Xml;
+using System.Collections.Generic;
+using System.Xml.XPath;
+using System.IO;
+
+namespace Common.Xml
+{
+    public static class XmlExtensions
+    {
+        public static void WriteElementValue(this XmlWriter writer, string elementName, TimeSpan value)
+        {
+            writer.WriteStartElement(elementName);
+            writer.WriteValue(value.TotalMilliseconds);
+            writer.WriteEndElement();
+        }
+
+        public static void WriteElementValue(this XmlWriter writer, string elementName, object value)
+        {
+            writer.WriteStartElement(elementName);
+            writer.WriteValue(value);
+            writer.WriteEndElement();
+        }
+
+        public static void ReadElementValue(this XmlReader reader, string elementName, ref string value)
+        {
+            try
+            {
+                reader.ReadStartElement(elementName);
+                value = reader.ReadContentAsString();
+                reader.ReadEndElement();
+            }
+            catch (XmlException)
+            {
+                // Ignore
+            }
+        }
+
+        public static void ReadElementValue(this XmlReader reader, string elementName, ref int value)
+        {
+            try
+            {
+                reader.ReadStartElement(elementName);
+                value = reader.ReadContentAsInt();
+                reader.ReadEndElement();
+            }
+            catch (XmlException)
+            {
+                // Ignore
+            }
+        }
+
+        public static void ReadElementValue(this XmlReader reader, string elementName, ref DateTime value)
+        {
+            try
+            {
+                reader.ReadStartElement(elementName);
+                value = reader.ReadContentAsDateTime();
+                reader.ReadEndElement();
+            }
+            catch (XmlException)
+            {
+                // Ignore
+            }
+        }
+
+        public static void ReadElementValue(this XmlReader reader, string elementName, ref bool value)
+        {
+            try
+            {
+                reader.ReadStartElement(elementName);
+                value = reader.ReadContentAsBoolean();
+                reader.ReadEndElement();
+            }
+            catch (XmlException)
+            {
+                // Ignore
+            }
+        }
+
+        public static void ReadElementValue(this XmlReader reader, string elementName, ref TimeSpan value)
+        {
+            try
+            {
+                reader.ReadStartElement(elementName);
+                int milliseconds = reader.ReadContentAsInt();
+                value = new TimeSpan(0, 0, 0, 0, milliseconds);
+                reader.ReadEndElement();
+            }
+            catch (XmlException)
+            {
+                // Ignore
+            }
+        }
+
+        public static XmlNamespaceManager GetAllNamespaces(this XmlDocument document)
+        {
+            // Create the namespace manager from the name table
+            XmlNamespaceManager namespaceManager = new XmlNamespaceManager(document.NameTable);
+
+            // Create a dictionary of all namespaces
+            Dictionary<string, string> allNamespaces = new Dictionary<string, string>();
+
+            // Create an XPathDocument from the XML of the XmlDocument
+            XPathDocument xPathDocument = new XPathDocument(new StringReader(document.InnerXml));
+
+            // Create an XPathNavigator for the document
+            XPathNavigator xPathNavigator = xPathDocument.CreateNavigator();
+
+            // Loop over all elements
+            while (xPathNavigator.MoveToFollowing(XPathNodeType.Element))
+            {
+                // Get the list of local namespaces
+                var localNamespaces = xPathNavigator.GetNamespacesInScope(XmlNamespaceScope.Local);
+
+                // Add all local namespaces to the master list
+                foreach (var ns in localNamespaces)
+                    allNamespaces[ns.Key] = ns.Value;
+            }
+
+            // Loop over all namespaces
+            foreach (var ns in allNamespaces)
+            {
+                // Use the key as the name
+                string namespaceName = ns.Key;
+
+                // If the name is blank then use "default" instead
+                if (string.IsNullOrEmpty(namespaceName))
+                    namespaceName = "default";
+
+                // Add the namespace to the manager
+                namespaceManager.AddNamespace(namespaceName, ns.Value);
+            }
+
+            // Add the default namespace if missing
+            if (!namespaceManager.HasNamespace("default"))
+                namespaceManager.AddNamespace("default", "");
+
+            return namespaceManager;
+        }
+    }
+}