I'll also add if it's your own application you should be coding to receive IList or IList<T> instead of List. Typically they'll have everything you need and accept a wider range of inputs - e.g. arrays, LinkedList's, normal List's, etc... And if you can get away with it maybe just IEnumerable. Of course if it's someone else's app that's of no use :(.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Michael Foord Sent: Thursday, May 24, 2007 4:35 PM To: Discussion of IronPython Subject: Re: [IronPython] Casting python list type to NET type Filipe Silva wrote: > Hi all, > > I've an VB.NET application invoking some python functions and I would > like these functions to return a list type. > To use the return values from other .NET languages like VB.NET and C# I think you have little choice but to use a .NET collection. You could make this conditional by wrapping the import in a 'try.. except' and having different behaviour on platforms where the .NET type is not available (i.e. CPython). Michael Foord http://www.voidspace.org.uk/ironpython/index.shtml > I've already tried to cast the result from "list" (python) to > Collection (VB.NET), also to ArrayList and to a simple string array. > In all cases I receive a cast exception saying that it's not possible > to make that conversion... > > Is there any NET type that could be directly casted from ironpython list type? > > Note: > 1. I can return a String instead of a list, but I would need to parse > that string inside VB.NET (using some kind of token) > > 2. I've found a solution by importing System.Collections.ArrayList in > my python script, then using ArrayList object instead of native list > type, however this way, my script doesn't work in a different engine > (that one in www.python.org, for instance) > > > Thanks, > Filipe > _______________________________________________ > users mailing list > users@lists.ironpython.com > http://lists.ironpython.com/listinfo.cgi/users-ironpython.com > > _______________________________________________ users mailing list users@lists.ironpython.com http://lists.ironpython.com/listinfo.cgi/users-ironpython.com _______________________________________________ users mailing list users@lists.ironpython.com http://lists.ironpython.com/listinfo.cgi/users-ironpython.com