[Mono-dev] Using the System.Linq library

Mark IJbema mark at ijbema.xs4all.nl
Fri Apr 6 06:00:49 EDT 2007


It's a bit more complicated than that, check my updated source:
http://ijbema.home.fmf.nl/Bla.cs

the solution you give works, but also, if i add the extension method in
my own files i can call it as an extension method. So, as far as i can
see it is a bug, i filed it as well:
http://bugzilla.ximian.com/show_bug.cgi?id=81324

Regards,

Mark

On Fri, Apr 06, 2007 at 11:55:30AM +0200, Alejandro Serrano wrote:
> The C# compiler does not support extension methods yet. So you must call
> the methods directly from the Queryable class, something like:
> 
> using System;
> using System.Linq;
> using System.Collections.Generic;
> 
> public class Bla {
> 	public static void Main() {
> 	 List<int> first  = new List<int>(new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 });
> 	 List<int> second = new List<int>(new int[] {             4, 5, 6,         10 });
> 
> 	 IEnumerable<int> q = Queryable.Except(first, second); <== here it is
> 	 int x = Enumerable.Count<int>(first);
> 
> 	 foreach (int num in q)
> 		  Console.WriteLine(num);
> 	}
> }
> 
> 
> 
> marek safar escribió:
> > Hello Mark,
> >
> >   
> >> I'm trying to use the System.Linq library, but i don't know how. It's in
> >> System.Core, so i used:
> >>
> >> gmcs -langversion:linq -r:System.Core Bla.cs 
> >> gmcs -langversion:linq -r:/home/mark/local/lib/mono/2.0/System.Core.dll Bla.cs
> >>     
> >
> > Yes, that's right syntax for code which uses C# 3.0 features.
> >
> >   
> >> On the file:
> >>
> >> http://ijbema.home.fmf.nl/Bla.cs
> >>
> >> Can anyone tell me how to compile this file so i can use the provided
> >> extension methods in Enumerable.cs?
> >>     
> >
> > Your code is correct but you hit a bug in our compiler.
> > Please fill a bug report in http://bugzilla.ximian.com
> >
> > Regards,
> > Marek
> >   



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