Two years ago, I got to participate in the announcement of C# 4.0 on my blog. At the time, Anders Hejlsberg had just given a talk about C# 4.0 at PDC in Los Angeles. Of course, I was still working on the thing with the rest of the C# team, but we shipped...

As you know if you read my blog, C# 4.0 introduced some language features that help you consume dynamic objects. Although it’s not part of the language, most of the writing about dynamic in C# that I have seen, including my own, also contains some point...

Stop me if you’ve heard this one, but here’s some information about how arrays perform, and a neat trick you can do to (possibly) get some performance back. Some background In .NET, arrays of reference types are covariant in their element type, but not...

This week, I'll be in California to speak at a few user groups about C# 4. This was arranged in coordination with the launch of Visual Studio 2010, and is one of several such tours that people on the VS Languages team are taking/have taken. I'll be in...

As I’m sure you’ve heard, we’re done! And you can download everything at your pleasure. Visual C# Express 2010 is available for free at the following link. For free! http://www.microsoft.com/express/downloads/ You can also download trial versions of the...

When you stand up and tell the world how your software is supposed to behave a full year or more before you’re done working on it, a funny thing can sometimes happen. You can change your mind. And therefore be wrong by the time the software ships. ...

In Parts I , II , and III , I talked about the slight changes that we made to field like events, to the += and -= event accessor operators, and how this may affect you. Just so we’re all on the same page, I want to consolidate here a list of Dos and Don...

In the last two posts, I revealed that field-like events in C# 4 have a better synchronization story , and that we changed += and -= in a kind of subtle way to protect you, in many cases, from the semantic differences this introduces between C# 3 and...

Last time , we saw that the field-like event accessor code that the C# compiler emits has changed. And it’s better in a few ways because we’ve banished the locking code that we used to emit. There are a few questions that came up in the comments, and...

It’s been a long time since I’ve posted anything about the way the compiler generates field-like events, and I have some good news. We fixed them! Well, anyway, we changed them, and I believe that in C# 4, they are better than they used to be. Read...

This morning, Visual Studio 2010 Beta2 is available to MSDN subscribers, with general availability to follow later in the week. Also, the new branding for Visual Studio and MSDN has been unveiled. Here’s the new C# logo: I like the new visual identity...

About a month ago, Sam Ng and I sat down with Charlie Calvert and his video camera to record an interview-style video about dynamic. Have a look! http://channel9.msdn.com/posts/CharlieCalvert/CSharp-4-Dynamic-with-Chris-Burrows-and-Sam-Ng/ If you view...

What we know already So we talked about how you can define a class that has a base class that involves dynamic, such as // This is OK! class Derived : Base<dynamic> { } although you cannot use dynamic alone as a base class. And we talked...

Ok, where were we? We have this new type called dynamic, and it’s used to tell the compiler to defer binding until runtime. We can construct other types with it as usual, and therefore use dynamic[], IEnumerable<dynamic>, List<dynamic>, and...

It has been a while since I posted anything here, and I have the same excuse everyone else does. Work, holidays, and generally being pretty busy. But enough of that, it’s February (!!!) and that means we’re getting closer to shipping C# 4.0 and dynamic...

[Update March 31, 2010: MUCH OF THIS HAS CHANGED SINCE PRE-RELEASE VERSION OF DYNAMIC. SEE THIS POST ] We left off last time with this piece of code public class C { public static void M(int i) { } public static void M(string s) { } } ... dynamic...

[Update March 31, 2010: MUCH OF THIS HAS CHANGED SINCE PRE-RELEASE VERSION OF DYNAMIC. SEE THIS POST ] Let's look at this: dynamic d = null; object o = d; // not an implicit conversion Last time , I said that the conversion on the second line is...

Today, let's geek out about the language design regarding the dynamic type. Type in the language vs. Type in the runtime One thing that lots of people already know is that when you say "dynamic" in code, you can think of it as "System.Object" in...

I'm a little backlogged at work right now, and I'll get back to some dynamic posts as soon as I can. In the meantime, Eric , Sam , Mads , and I talked with Channel 9 last week, and the video has just been posted. I look forward to watching it myself!...

Here are a few good resources that you ought to look at for information about dynamic from PDC: Anders Hejlsberg's talk, "The Future of C#" - Among other things, this talk is a great introduction to dynamic. I recommend it highly! There are...

Yesterday, I made an attempt to introduce the C# dynamic feature by describing what change there has been to the language, what scenarios we hope to affect by that change, and some overview of what dynamic operations look like in C# 4 as it stands in...

PDC 2008 arrives today, and that means that I am finally able to talk publicly about some of the things I've been working on for the next version of C#. What a relief! I am excited for the world to see some of this stuff, and to start receiving more customer...

My last post was many months ago, and I've been pretty busy here since then. Nobody who starts a blog means to neglect it, even though mostly that's what happens. I won't let it go for so long again. =) Anyway, we were talking about events . Field-like...

Hi all, my name's Chris Burrows, and I'm a developer on the C# Compiler team here in Redmond. I'll introduce myself further in a subsequent post, but I just want to start off with a note that has at least a little substance. So let's talk about C#...