What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

What’s New in the BCL in .NET 4 Beta 1 [Justin Van Patten] | Microsoft Share Point

Sat, 23 May 2009 04:47:17 GMT

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Visual Studio 2010 Beta 1

Khurram Aziz — Sat, 23 May 2009 13:55:30 GMT

Visual Studio 2010 Beta 1 is available to try. Don't forget to download the Visual Studio 2010 and .NET

What's new in the BCL in .NET 4 Beta 1 (from BCL Team blog)

Joteke's Blog — Sat, 23 May 2009 22:48:10 GMT

Interesting stuff : http://blogs.msdn.com/bclteam/archive/2009/05/22/what-s-new-in-the-bcl-in-net-4-beta-1-justin-van-patten.aspx

What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten] - BCL Team Blog

DotNetShoutout — Sun, 24 May 2009 00:34:49 GMT

Thank you for submitting this cool story - Trackback from DotNetShoutout

Interesting Finds: 2009 05.18 ~ 05.24

gOODiDEA.NET — Sun, 24 May 2009 04:05:19 GMT

.NET What's New in the BCL in .NET 4 Beta 1 How CLR maps SEH exceptions to managed exception types Announcing

Interesting Finds: 2009 05.18 ~ 05.24

gOODiDEA — Sun, 24 May 2009 04:07:59 GMT

.NETWhat'sNewintheBCLin.NET4Beta1HowCLRmapsSEHexceptionstomanagedexception...

Что нового в BCL .NET 4 Beta 1

progg.ru — Sun, 24 May 2009 10:09:16 GMT

Thank you for submitting this cool story - Trackback from progg.ru

Interesting Finds: May 24, 2009

Jason Haley — Sun, 24 May 2009 20:02:21 GMT

Interesting Finds: May 24, 2009

re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

Stefan Wenig — Tue, 26 May 2009 18:45:54 GMT

Variance annotations: this is great! but why don't you add additional interfaces that enable covariance for more complete collections?

e.g., IList<T> has T in input and output positions, so it cannot be covariant. however, IEnumerable<> is very limited, so whenever I need covariance, I'd have to cast to IEnumerable<T> and just enumerate that list.

you could provide additional interfaces such as IReadonlyCollection<out T> or IReadonlyList<out T> that use T only in output positions, so we could get covariance AND the ability to clear list, access them by position, get a count and everything _without_ doing a (slow) enumeration.

Whether ICollection<T> would inherit from IReadonlyCollection<T> is a matter of compatibility (some reflection-based code may rely on the current inheritance hierarchy), but at least additional interfaces sure would not hurt.

(As a side note I find it interesting that in all interfaces up to IList<T>, there are only two methods that are not covariant by nature: Add and Insert. E.g., ignoring the static type system for a moment, Remove(T obj) is perfectly covariant: trying to remove an object of the wrong type should have the exact same effect as trying to remove an object of the correct type that's just not in the collection. Only Add and Insert could get us into additional trouble at runtime. Obviously, that's nothing a static type system can easily account for, but a specialized ICovariantList<T> could easily provide object-Typed methods for those instances. But then again, it's probably the most straightforward way to just use the non-generic ICollection/IList interfaces for such stuff...)

re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

Omer Mor — Tue, 26 May 2009 22:42:48 GMT

I noticed that the Tuple with the TRest parameter is enforcing that TRest is ITuple in runtime, instead of declaring the type parameter as TRest : ITuple.

Is there any good reason behind that ?

Omer Mor.

re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

pminaev — Wed, 27 May 2009 01:26:22 GMT

>>> I noticed that the Tuple with the TRest parameter is enforcing that TRest is ITuple in runtime, instead of declaring the type parameter as TRest : ITuple. Is there any good reason behind that ?

Well, there's no interface ITuple. And even if there was, nothing would restrict someone else from implementing it, either (it would have to be public to be used in a generic constraint).

New and Notable 323

Sam Gentile's Blog (if (DeveloperTask == Communication && OS == Windows) — Wed, 27 May 2009 18:19:05 GMT

Agile Agility at Scale: Become as Agile as You Can Be: Scott Ambler talks about his new ebook; The goal of the Agility at Scale: Become as Agile as You Can Be ebook is to get people thinking outside of the box a bit when it comes to agile development

re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

Luiz — Thu, 28 May 2009 01:08:45 GMT

Hi,

Where i can found a list of ALL changes in the .NET Framework 4.0 ?

Thanks!

re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

lewellen — Thu, 28 May 2009 22:19:08 GMT

It's really great that you folks got BigInteger in there. I look forward to seeing the System.Numerics namespace evolve.

This Week on C9: Bing, Changes to .NET FX 4.0, & play Apple IIe games on your Xbox

ComponentGear.com Feed — Sat, 30 May 2009 05:11:12 GMT

This week on Channel 9, Brian and Dan discuss the top developer news including: - Bing - Microsoft's

re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

Vijay Santhanam — Sat, 30 May 2009 14:48:21 GMT

Why is BigInteger is Numerics namespace? shouldn't it be where Int32 and the others are?

re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

matt_hargett — Wed, 03 Jun 2009 00:52:22 GMT

I'm now curious about what has been *removed*. One of Java's primary problems is not getting rid of obsolete and error-prone APIs, causing bloat. Both the CLR via C# and the Framework Design Guidelines books call out various mistakes about in the design of certain BCL types and methods. (I love the brutal honesty in these books, much more helpful than the kiss-ass approach of Effective Java.)

When will the issues called out in the aforementioned books be resolved in the BCL? I'd be willing to sacrifice a minor amount of compilation backward-compatibility to eliminate bad examples and anti-patterns that end up creeping into users' designs.

Thanks for the post!

re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

Mike DePouw — Wed, 03 Jun 2009 08:29:17 GMT

very informative blog post, thanks!

.NET Fx 4.0: Listado de novedades en la BCL!

Blog del CIIN — Sun, 07 Jun 2009 00:26:27 GMT

Muchas son las novedades que tenemos en la BCL (Base Class Library) de .NET Framework 4.0…y para conocerlas

re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

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re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

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re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

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re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

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re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

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re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

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re: What's New in the BCL in .NET 4 Beta 1 [Justin Van Patten]

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