Hi Ryan, You can't call a C# extension method off of the object. You might try > creating a mixin to add a method_missing to catch and call the appropriate > extensions. Otherwise, I think you have to call them as static members, e.g. > Enumerable.First.Of(Sheet).call(b). That looks horrifying, I know. I don't > have IR available on this machine, or I would try it myself. Let me know how > that goes. This seems like it will be a fairly common problem for things > like LINQ, PFx and Rx. Maybe we can come up with a simple, one-size-fits-all > solution?
yikes :) I was pretty sure something like that was involved. I think I'll try the static version first, see if it works. thanks for the hint, I'll keep you posted :) -- Thibaut > > > Ryan Riley > > Email: ryan.ri...@panesofglass.org > LinkedIn: http://www.linkedin.com/in/ryanriley > Blog: http://wizardsofsmart.net/ > Website: http://panesofglass.org/ > > > On Fri, Nov 20, 2009 at 9:17 AM, Thibaut Barrère < > thibaut.barr...@gmail.com> wrote: > >> Hi, >> >> I'm testing out the OpenXML SDK with IronRuby (0.9.2). Turns out it's full >> of generics in there, a good play field. >> >> Here I'm trying to use the API to retrieve a list of sheets in an existing >> xslx. >> >> I'm having a hard-time understanding why I can't call "b.first" in the >> next snippet (full version at http://gist.github.com/239555): >> >> doc = SpreadsheetDocument.open('docs/single-cell.xlsx', false) >> >> >> >> >> >> >> >> a = doc.workbook_part.workbook.method(:get_first_child).of(Sheets).call >> >> >> >> puts a >> >> >> >> # -> DocumentFormat.OpenXml.Spreadsheet.Sheets >> >> >> >> >> >> >> >> b = a.method(:elements).of(Sheet).call >> >> >> >> puts b >> >> >> >> # -> >> DocumentFormat.OpenXml.OpenXmlElementList+<OfType>d__0`1[DocumentFormat.OpenXml.Spreadsheet.Sheet] >> >> >> >> >> >> >> >> # b.first or anything similar fails >> >> >> >> * >> >> * >> >> It turns out that b.methods shows a "to_a" method is available, then I can >> do : >> >> puts b.to_a.first # woot! >> >> >> >> # -> DocumentFormat.OpenXml.Spreadsheet.Sheet >> >> >> >> >> So my questions are: >> - why can't I call b.first ? (maybe there's something obvious I didn't see >> - I assume it's probably that) >> - are there better ways of writing this ? >> >> And if you are interested to follow (I really need to wrap some ruby sugar >> around all this to make it easier to work with), I'll push my experiments >> here: >> >> http://github.com/thbar/openxml-labs >> >> thanks, >> >> Thibaut >> -- >> http://www.learnivore.com >> >> _______________________________________________ >> Ironruby-core mailing list >> Ironruby-core@rubyforge.org >> http://rubyforge.org/mailman/listinfo/ironruby-core >> >> > > _______________________________________________ > Ironruby-core mailing list > Ironruby-core@rubyforge.org > http://rubyforge.org/mailman/listinfo/ironruby-core > >
_______________________________________________ Ironruby-core mailing list Ironruby-core@rubyforge.org http://rubyforge.org/mailman/listinfo/ironruby-core
