Dan Rigsby – Coding Up Style

/// <summary>
/// Transforms the specified xml string using the specified xslt string.
/// </summary>
/// <param name="xml">The xml string to transform.</param>
/// <param name="xslt">The xslt string to transform with.</param>
/// <returns>The transformed xml string.</returns>
public static string Transform(
    string xml,
    string xslt
    )
{
    string output = String.Empty;
    StringWriter stringWriter = null;
    XmlTextWriter xmlWriter = null;
    XmlDocument inputDocument = new XmlDocument();
    XmlDocument xsltDocument = new XmlDocument();
    System.Xml.Xsl.XslCompiledTransform xslCompiledTransformer = null;

    try
    {
        // Create Xml Document
        inputDocument.LoadXml(xml);

        // Create XsltDocument
        xsltDocument.LoadXml(xslt);

        stringWriter = new StringWriter();
        xmlWriter = new XmlTextWriter(stringWriter);

        // Apply the generated text stylesheet. 
    #if DEBUG
        xslCompiledTransformer =
            new System.Xml.Xsl.XslCompiledTransform(true);
    #else
        xslCompiledTransformer =
            new System.Xml.Xsl.XslCompiledTransform(false);
    #endif
        xslCompiledTransformer.Load(xsltDocument);
        xslCompiledTransformer.Transform(inputDocument, xmlWriter);

        // Generate the output Xml
        output = stringWriter.GetStringBuilder().ToString();
    }
    finally
    {
        if (xmlWriter != null)
        {
            xmlWriter.Close();
        }

        if (stringWriter != null)
        {
            stringWriter.Dispose();
        }

        if (xslCompiledTransformer != null)
        {
            xslCompiledTransformer.TemporaryFiles.Delete();
        }
    }

    return output;
}