/// <summary> /// Declare a namespace for use by the query. This has the same /// status as a namespace appearing within the query prolog (though /// a declaration in the query prolog of the same prefix will take /// precedence) /// </summary> /// <param name="prefix">The namespace prefix to be declared. Use /// a zero-length string to declare the default namespace (that is, the /// default namespace for elements and types).</param> /// <param name="uri">The namespace URI. It is possible to specify /// a zero-length string to "undeclare" a namespace.</param> public void DeclareNamespace(String prefix, String uri) { env.declareNamespace(prefix, uri); }