thanks

By default, the elements in each grouping are untransformed input elements. I simply had to supply an element selector in the grouby. var grouped = from item in items orderby item.Group, item.Value group item.Value by item.Group into grp select new { Key = grp.Key, Concated = grp.Concat(",") };

Linq uses something called deferred execution which basically means you don't get the data until you evaluate it (in whichever way you see fit). If you want to export this as a list, you can just use crossjon_forumquestion.ToList(); to return a list. Deja View - the feeling that you've seen this post before. My blog | My articles | MoXAML PowerToys

that works .. thanks! i need to start reading a linq book.. looks very powerful for sure.

done.. thanks

so how small should the scanner make the tokens? Example: i can create greedy tokens like this: DCode:= 'D'[0-9][0-9][0-9] GCode:= 'G'[0-9][0-9] MCode:= 'M'0[0-2] or specific tokens like this: GCodeG36 := 'G36' GCodeG37 := 'G37' after working some on my parser this morning i like the more specific expression better. Simplifies my parsing. my parser can just check: "is a type" matches &= scanner.Next() is DCodeD02Token vs "is a type with a value of this" matches &= scanner.Next() is DCodeToken && ((DCodeToken)scanner.Current).DCode == 2; I would like to see an example of tree analysis. might help me with my current problem of: http://www.codeplex.com/irony/Thread/View.aspx?ThreadId=35310[^]

The book 'mastering Regular Expressions' from O Reilly has big chapters on how it all works internally. Christian Graus Please read this if you don't understand the answer I've given you "also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

the vector version is looking a lot better. http://files.mixhacks.com/FirstAnimationv0.2.zip[^] heres the setup http://files.mixhacks.com/animation.setup.jpg[^] another day and i might actually be done with the vector based one. can anyone help with the RungeKutta4 version... i'm totally lost on that implementation.