/// <summary>
/// Perform an xsl transformation on document in memory.
/// </summary>
/// <param name="xslFileName">Full pathname of xsl file to use for transformation.</param>
/// <param name="doc">Xml document to transform.</param>
/// <returns>Transformed xml.</returns>
public static XmlReader Transform(string xslFileName, IXPathNavigable doc)
{
return(XmlHelpers.Transform(xslFileName, doc, null));
}
/// <summary>
/// Aggregates xml data defined in different parameter types into a single XmlWriter stream and then returns the data as an XmlReader
/// </summary>
/// <param name="rootName">The root element name, if null or an empty string is passed, a root element is not created in the output.</param>
/// <param name="paramObjects">Supported types are XmlReader, IXPathNavigable, XPathNodeIterator, XmlAttribute, XmlAttributeCollection, and string. String parameters are considered to be raw Xml data.</param>
/// <returns></returns>
static public XmlReader AggregateXml(string rootName, params object[] paramObjects)
{
MemoryStream stream = null;
try
{
stream = new MemoryStream();
using (XmlWriter writer = XmlHelpers.CreateXmlWriterForReading(stream))
{
if (!string.IsNullOrEmpty(rootName))
{
writer.WriteStartElement(rootName);
}
foreach (object obj in paramObjects)
{
if (null != obj)
{
if (obj is XmlReader)
{
((XmlReader)obj).MoveToContent();
writer.WriteNode((XmlReader)obj, false);
}
else if (obj is IXPathNavigable)
{
IXPathNavigable nav = (IXPathNavigable)obj;
writer.WriteNode(nav.CreateNavigator(), false);
}
else if (obj is string)
{
writer.WriteRaw((string)obj);
}
else if (obj is XPathNodeIterator)
{
XPathNodeIterator iter = (XPathNodeIterator)obj;
foreach (XPathNavigator nav in iter)
{
writer.WriteNode(nav.CreateNavigator(), false);
}
}
else if (obj is XmlAttribute)
{
XmlAttribute attr = (XmlAttribute)obj;
writer.WriteAttributeString(attr.Prefix, attr.LocalName, attr.NamespaceURI, attr.Value);
}
else if (obj is XmlAttributeCollection)
{
XmlAttributeCollection coll = (XmlAttributeCollection)obj;
foreach (XmlAttribute attr in coll)
{
writer.WriteAttributeString(attr.Prefix, attr.LocalName, attr.NamespaceURI, attr.Value);
}
}
else //throw an exception if it is not one of the supported types
{
throw new ArgumentException("Unsupported parameter type");
}
}
}
if (!string.IsNullOrEmpty(rootName))
{
writer.WriteEndElement();
}
}
return(XmlHelpers.CreateXmlReaderFromMemoryStream(stream));
}
catch (Exception e)
{
if (stream != null)
{
stream.Close();
}
throw e;
}
}
/// <summary>
/// Perform an xml transformation on a reader.
/// </summary>
/// <param name="xslFileName">Full path of xsl file to use for transformation.</param>
/// <param name="reader">Xml document to transform.</param>
/// <returns>Transformed xml.</returns>
public static XmlReader Transform(string xslFileName, XmlReader reader)
{
return(XmlHelpers.Transform(xslFileName, reader, null));
}
