object m_containingDocument = SignedXml_m_containingDocument.GetValue(this);

Reference_UpdateHashValue.Invoke(reference2, new object[] { m_containingDocument, refList });

/**
* Return the Element corresponding to the XPath query.
*
* @param xmlNode     The node where the search should be performed.
* @param xPathString XPath query string
* @return
*/
public static Element getElement(final Node xmlNode, final String xPathString) {

return (Element) getNode(xmlNode, xPathString);
}

/**
* Return the Node corresponding to the XPath query.
*
* @param xmlNode     The node where the search should be performed.
* @param xPathString XPath query string
* @return
*/
public static Node getNode(final Node xmlNode, final String xPathString) {

	final NodeList list = getNodeList(xmlNode, xPathString);
	if (list.getLength() > 1) {
		throw new DSSException("More than one result for XPath: " + xPathString);
	}
	return list.item(0);
}

/**
* Returns the String value of the corresponding to the XPath query.
*
* @param xmlNode     The node where the search should be performed.
* @param xPathString XPath query string
* @return string value of the XPath query
* @throws XPathExpressionException
*/
public static String getValue(final Node xmlNode, final String xPathString) {

	try {

		final XPathExpression xPathExpression = createXPathExpression(xPathString);
		final String string = (String) xPathExpression.evaluate(xmlNode, XPathConstants.STRING);
		return string.trim();
	} catch (XPathExpressionException e) {

		throw new DSSException(e);
	}
}