Starting with VS 2008 and new feature

[Andrew]

Ok, today I decided to open vs 2008 and start to see what's the
changes. What's the best way to try do do something? So I decided to
read a stupid xml file with LinQ ... but ... strange thing despite the
2008 is the only version avalaible on my system ... framework 3.5 is
installed when I start to use var for variable inferering ... vs start
to mark it in red ... continuing ... from x ... red again.

Definitely there is something that doesn't work? But what?
On first try I opened an old test project, not followed the automatic
conversion, but added manually the core files required, so I though to
something missing.
But the same happen with a new project too.

What could be the error?

Thanks to all.
Andrea

[Jon Skeet [C# MVP]]

Andrew <an************ ***@gmail.comwr ote:

Ok, today I decided to open vs 2008 and start to see what's the
changes. What's the best way to try do do something? So I decided to
read a stupid xml file with LinQ ... but ... strange thing despite the
2008 is the only version avalaible on my system ... framework 3.5 is
installed when I start to use var for variable inferering ... vs start
to mark it in red ... continuing ... from x ... red again.

Are you trying to use it for an instance variable, perhaps? Implicit
typing for variables is only available for local variables.

Could you post a short but complete program which demonstrates the
problem?

See http://www.pobox.com/~skeet/csharp/complete.html for details of
what I mean by that.

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
World class .NET training in the UK: http://iterativetraining.co.uk

[=?Utf-8?B?TWljaGFlbCBOZW10c2V2?=]

Could you check that u have declared "using System.LINQ" ?

btw, maybe in the project properties u have .NET 2.0 target settings, that's
why u have no LINQ support

VS 2008 provides multiverstion support, and when u create new solution u can
select the target version in the top righ size of the "new project" dialog box

--
WBR, Michael Nemtsev [.NET/C# MVP].
Blog: http://spaces.live.com/laflour

"Andrew" wrote:

Ok, today I decided to open vs 2008 and start to see what's the
changes. What's the best way to try do do something? So I decided to
read a stupid xml file with LinQ ... but ... strange thing despite the
2008 is the only version avalaible on my system ... framework 3.5 is
installed when I start to use var for variable inferering ... vs start
to mark it in red ... continuing ... from x ... red again.

Definitely there is something that doesn't work? But what?
On first try I opened an old test project, not followed the automatic
conversion, but added manually the core files required, so I though to
something missing.
But the same happen with a new project too.

What could be the error?

Thanks to all.
Andrea

[Andrew]

Well

I suppose that it won't solve anything a short complete program ...
because
I'm not able to write it at all.
I mean ... also a cut and paste of some web sample will mark in red
the new
keywords ... so I exclude my mystakes.

A strange thing that I'm also noticing is that in the Application Pool
of IIS the framework listed is only the 2.0

Are 3.0 and 3.5 considered just an extension for the IIS?

I forget to say, a part of all, that I'm running on Vista.

[Andrew]

Could you check that u have declared "using System.LINQ" ?

I have it, and reshaper say me that I can remove because it's unused.

btw, maybe in the project properties u have .NET 2.0 target settings, that's
why u have no LINQ support

The target settings is set up on 3.5. Setting I was referering was
those one present in IIS, not in VS.

Can the problem is that I'm running on Professional Version? I noticed
this now. I just started the download of the developer edition, but I
suppose that I won't be able to run it until tomorrow morning. It's a
4gb download file.

[Andrew]

Also lambda expression aren't recognized. There is defintely something
wrong in this installation. But it's a fresh one, made appositely for
the VS 2008 installation. Damn.

[Jon Skeet [C# MVP]]

Andrew <an************ ***@gmail.comwr ote:

I suppose that it won't solve anything a short complete program ...
because I'm not able to write it at all.

If you show a short but complete program that you expect to compile,
that will tell us whether what you expect to compile and what *should*
compile are the same thing or not.

For instance, try this:

using System;

class Test
{
static void Main()
{
var x = 10;
Console.WriteLi ne (x);
}
}

Does that work, in a new console app? If not, what error message do you
get?

I mean ... also a cut and paste of some web sample will mark in red
the new keywords ... so I exclude my mystakes.

Well, some web samples have mistakes too.

A strange thing that I'm also noticing is that in the Application Pool
of IIS the framework listed is only the 2.0

Are 3.0 and 3.5 considered just an extension for the IIS?

I believe so.

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
World class .NET training in the UK: http://iterativetraining.co.uk

[=?Utf-8?B?UGV0ZXIgQnJvbWJlcmcgW0MjIE1WUF0=?=]

Framework 3.0 and 3.5 build on and still use Framwork 2.0 for IIS - so yes
you should only see 2.0 listed.
-- Peter
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
MetaFinder: http://www.blogmetafinder.com
"Andrew" wrote:

Well

I suppose that it won't solve anything a short complete program ...
because
I'm not able to write it at all.
I mean ... also a cut and paste of some web sample will mark in red
the new
keywords ... so I exclude my mystakes.

A strange thing that I'm also noticing is that in the Application Pool
of IIS the framework listed is only the 2.0

Are 3.0 and 3.5 considered just an extension for the IIS?

I forget to say, a part of all, that I'm running on Vista.

[Alun Harford]

Andrew wrote:

>Could you check that u have declared "using System.LINQ" ?

I have it, and reshaper say me that I can remove because it's unused.

>btw, maybe in the project properties u have .NET 2.0 target settings, that's
why u have no LINQ support

The target settings is set up on 3.5. Setting I was referering was
those one present in IIS, not in VS.

Can the problem is that I'm running on Professional Version? I noticed
this now. I just started the download of the developer edition, but I
suppose that I won't be able to run it until tomorrow morning. It's a
4gb download file.

Last time I looked, Resharper didn't support C#3. They recently released
a new version though - not sure if it now supports C#3.

Alun Harford

[Marc Gravell]

[using System.LINQ] I have it, and reshaper say me that I can remove because it's unused.
For info, "var", lambda, etc - don't depend on this namespace - and
work even in 2.0 targets (they are compiler features, not runtime
features [lambdas as delegates, at least])

Can the problem is that I'm running on Professional Version?

Nope; should work the same on express, pro, team, etc...

Marc