[Mono-bugs] [Bug 343869] New: XPathNavigator.ValueAs() throws NotImplementedException

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Sat Nov 24 00:13:46 EST 2007


           Summary: XPathNavigator.ValueAs() throws NotImplementedException
           Product: Mono: Class Libraries
           Version: 1.2.5
          Platform: i686
        OS/Version: Linux
            Status: NEW
          Severity: Blocker
          Priority: P5 - None
         Component: Sys.XML
        AssignedTo: atsushi at ximian.com
        ReportedBy: novell at erik.prutser.cx
         QAContact: mono-bugs at ximian.com
                CC: novell at erik.prutser.cx
          Found By: ---

Description of Problem:

In mono- System.Xml.XPath.XPathNavigator.ValueAs(System.Type type,
IXmlNamespaceResolver nsResolver) throws a NotImplementedException. This is a
problem as it breaks our generic XPath querying application that works
perfectly on .Net 2.0.

Steps to reproduce the problem:
Compile and run the attached test application:
$ gmcs ConfigurationDirectory.cs Program.cs -out:test.exe
$ mono test.exe

Unhandled Exception: System.NotImplementedException: The requested feature is
not implemented.
  at System.Xml.XPath.XPathNavigator.ValueAs (System.Type type,
IXmlNamespaceResolver nsResolver) [0x00000]
  at System.Xml.XPath.XPathItem.ValueAs (System.Type type) [0x00000]
  at ConsoleApplication1.ConfigurationDirectory.QueryList[String]
(System.String query, IXmlNamespaceResolver namespaces) [0x00000]
  at ConsoleApplication1.Program.Main (System.String[] args) [0x00000]

On .Net the application's XPath query executes properly, selecting 2 elements:
2 elements found.

Actual Results:

XPathNavigator.ValueAs() throws NotImplementedException

Expected Results:

Return the selected element converted to the specified data type.

How often does this happen? 


The attached test app illustrates the problem by loading a namespaced,
schema-validated xml file and running an XPath 1.0 query on it to select
multiple elements and then converting the value of each element to a
configurable type.

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