What's New in the .NET Framework 4.5

http://msdn.microsoft.com/it-it/library/ms171868%28v=VS.110%29.aspx

by Garbage • 15 years ago

80 13 15 years ago

msdn.microsoft.com

chrislomax2• 15 years ago

I actually think there is a lot here to get excited about. .net forms getting model bindings is quite big, as taken from MVC. Page speed performances, html5 support, web socket support.

It seems to me they are actually taking their head out the sand and realising the web is not all about Microsoft now and there is a whole world of new technology happening around them that they need to include in their products.

I have actively pulled my Silverlight projects now and am concentrating on html5, javascript and websockets since last night. Massive coincidence that this morning Silverlight is getting a bum deal in other press.

I think this is a prelim release to 5 as they want to show their commitment to becoming more engaging to html5 standards and other technology.

Also, there is a comment that this is a weak release for 2.5 years work, .net 4 had a massive amount of work done on it and this is a partial release. The library is already very concise so I would be interested to know what "massive" changes they could make right now apart from just making the library more stable.

Consider this the Windows version (in development terms) of the Leopard to Snow Leopard that Apple released.

mattmanser2• 15 years ago

All the html5 stuff is in there because of windows 8, pure and simple.

Also I don't know who in their right mind would chose to use classic ASP.Net anymore.

But compared to 3.5 there's nothing in here that I find exciting or that's looking particularly like it's going to make my life as a programmer better. Personally I find the more they work on MVC the more they seem to be giving in to the temptation to put 'magic' in there like the old forms, which sucks imo as it encourages new programmers to write very bad code.

chrislomax2• 15 years ago

We actively use asp.net "classic" as you have referred to it. It's an alternative and in by no means inferior to MVC. We are looking at implementing MVC3 but to do what we do with asp.net webforms will be a difficult task. We wrote a CMS framework for our own clients and we use quite a lot of specific .net webforms controls to do what we do.

The main reason I started moving away from silverlight and more into html and js, mvc etc was because of Windows 8 not having silverlight as part of the interface.

This is exactly what I mean by Microsoft getting it's head out the sand though, they have chosen to use the more adopted methods going forward than it's own solutions. It's a sign that Microsoft are no longer at the center of the universe.

I'm not putting down your comment on who in their right mind uses "classic" asp.net any more but I find it a little closed minded as asp.net webforms is far more tried and tested. It's a developers choice and it's not a wrong choice to use forms over mvc.

usedtolurk• 15 years ago

Looks like the most dramatic changes will be in writing Metro style Apps: http://msdn.microsoft.com/en-us/library/windows/apps/br23030...

tarr11• 15 years ago

The Async / Await pattern looks very cool. This will make my code a lot cleaner and shorter.

http://msdn.microsoft.com/it-it/library/hh191443(v=VS.110).a...

hello_moto3• 15 years ago

I don't mean to be rude toward the .NET community but I'd have to ask this because it has been bothering my mind a little bit.

Let me begin by praising the CLR and C#. Their latest features are great (both at runtime level and syntax level). But I have not seen something great (or notable) coming out from the .NET communities whether a new library, a new ORM, a new framework, a new paradigm, or even a new tool despite all these cool lambdas, task, linq, etc.

Why is that?

Coming from Java, a language/platform that is considered less superior, where there are tons of good tools like Ant, Ivy, Maven (is NuGet comparable to Maven? or still lagging?), or libraries such as JBoss Netty, JAX-RS, Spring MVC 3.0 (very close to Rails: routes, return XML/JSON depending on request, minus the ORM), JAX-WS (with annotation style programming), EJB 3.1 style programming (which helps a lot!), a few of NoSQL flavours to keep developers busy (Neo4J, Cassandra, HBase), distributed libraries such as Hadoop, I find this situation to be odd.

mattmanser2• 15 years ago

Two reasons imo:

1. MS advances their product at a semi-decent rate so people just wait for MS to bring out a solution. I don't mean this as a dig, it just seems MS is more plugged into emerging trends in programming. Asp.net MVC came out within a year of Rails and Django becoming popular and lots of MVC frameworks appearing for PHP. I also had just seriously started playing with NHibernate when Linq2Sql and the Entity framework came out. Same with lambdas and all that goodness. They seem to bring stuff out just as people are saying 'hey, this is a really good idea'. I don't see that happening in Java. They get it wrong sometimes, like their over engineered SOAP solution which personally I think contributed to its downfall. Also WCF and WF are both pretty shitty.

2. I think a lot of the other tools is because Java came out first so some of these problems were were already solved when it came to .Net, so we got nant, etc. I personally have never worked on a project where something like Maven seemed worth it comapred to some slight customisations to MSBuild which you can do in VS, so can't comment on that.

crenshaw• 15 years ago

You nailed it. The other thing is that .NET devs generally aren't framework devs. They're app devs.

With that said, there are some nice frameworks that exist, but competing against the top framework vendor, Microsoft, is tough. And while most on HN won't understand this, most .NET devs are actually quite happy with what MS is doing -- and most generally feel like MS actually does listen to the dev community.

hello_moto3• 15 years ago

Is NAnt still around? I thought MSBuild caught the wind and run with it.

I think you're onto something with your statement that Maven might not worth in .NET since there aren't many 3rd party libraries that you would include to your project. That is probably tied to point #1: relying on Microsoft to provide everything.

andrewdavey• 15 years ago

RavenDB http://ravendb.net/ is an excellent document database written in .NET. It leverages lots of LINQ and C# 4.0's dynamic abilities to provide a really clean API. I'm sure it'll soon be taking advantage of the new async stuff coming in C# 5.0 as well.

It's open source as well. Well worth a look.

hello_moto3• 15 years ago

I heard about RavenDB but doesn't seem to gain a lot of followers among .NET developers. MongoDB seems to be the choice for .NET communities.

nathanwdavis• 15 years ago

As a .NET dev, I have to kind of agree with you. While I have been quite pleased with the evolution of C# over the years and am stoked about F#, MS's involvement in Node.js, ASP.NET MVC, etc., I can't say that about the .NET developer community.

For the most part, the .NET devs I know just don't care to be involved in community open source projects and/or use those projects as much as you see with other stacks. I do see that changing quickly though.

However, it is nice to see this new respect for MS I'm seeing from non-MS developers lately. Just a few years ago it was pretty depressing, but that seems to be changing.

WayneDB• 15 years ago

A few of points:

1) Perhaps you don't use .NET a lot so maybe you're not as aware of all the great tools that are available (open or commercial).

2) .NET developers are more likely to be commercially minded. In other words, their tools aren't always free.

3) There really are a lot of great tools. Check out RedGate, JetBrains, Telerik or DevExpress .NET tools among others. CodeSmith. CruiseControl.NET. See also http://visualstudiogallery.msdn.microsoft.com/ .

What's New in the .NET Framework 4.5

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