Declare namespaces within XPath expression

Question

My application needs to evaluate XPath expression against some XML data. Expression is provided by user at runtime. So, I cannot create XmlNamespaceManager to p

Answer 1

If the same prefix can be bound to different namespaces and prefixes aren't known in advance, then the only pure XPath way to specify such expressions is to use this form of referring to elements:

someName[namespace-uri() = 'exactNamespace']

So, a particular XPath expression would be:

/*/a[namespace-uri() = 'defaultNS']/b[namespace-uri() = 'NSB']
                                         /c[namespace-uri() = 'defaultNS']