EvalXPathExpr(IXPathNavigable, XPathExpression, CustomContext) | This is used to get the string result from evaluating an XPath expression against the given document and context. |
EvalXPathExpr(IXPathNavigable, XPathExpression, String) | This is used to get the string result from evaluating an XPath expression against the given document and a context created from a set of key/value pairs. |