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How C# Array Initializers Work

Everyone knows array initializers; they’ve been part of the language since the very beginning. But do you know how this innocent looking construct really works? var ints = new [] { 1, 2, 3 }; Before we continue, I should point out that the above sample uses a couple of C# 3.0 specific features, namely...

Posted to B# .NET Blog (Weblog) by bart on 08-21-2008
Answers to C# Quiz - Fun with System.Xml

Answers to the C# Quiz - Fun with System.Xml . Here's a quick refresh of the problem: Copy Code 1 using System; 2 using System.Xml; 3 4 class Program 5 { 6 static void Main() 7 { 8 new Bar < int > ().CreateBar < double > ( " Bart " ).CreateBar < long > ( " DeSmet "...

Posted to B# .NET Blog (Weblog) by bart on 04-18-2007
C# Quiz - Fun with System.Xml

A simple quiz today; it's rather a System.Xml debugging job. With this I've said too much already. Here it is: Copy Code 1 using System; 2 using System.Xml; 3 4 class Program 5 { 6 static void Main() 7 { 8 new Bar < int > ().CreateBar < double > ( " Bart " ).CreateBar < long...

Posted to B# .NET Blog (Weblog) by bart on 04-12-2007
Introducing PLINQ

On the last edition of Developer & IT Pro Days in Belgium last week, Raj Pai - program manager on the C# team at MS Corp - delivered the first public demo of PLINQ aka Parallel LINQ . Let's have a quick look... By now, every blog reader should be familiar with the concept of LINQ, the Language INtegrated...

Posted to B# .NET Blog (Weblog) by bart on 04-04-2007
Answers to C# Quiz - Need for speed

You can find the original quiz over here . There have been lots of great answers, thanks to all readers! The bottom line however is that one should be careful when doing performance optimizations; in much cases the code doesn't become cleaner (even the opposite). One shouldn't trade design guidelines...

Posted to B# .NET Blog (Weblog) by bart on 03-13-2007
C# 2.0 iterators revisited - The Pascal triangle

Last week, I introduced C# 2.0 to a few academic people who had prior exposure to C, C++ and Java. Does language matter is an often heard question. Well, in the world of .NET, the importance of language choice has somewhat blurred but richness of languages still is a great decision factor, certainly...

Posted to B# .NET Blog (Weblog) by bart on 02-28-2007
C# Quiz - Need for speed

This quiz was derived from an old piece of code I reviewed for a student's project somewhere in the past. Actually, I was doing some perf-related work today, so I thought it might be useful to have a little quiz around this. Below is the code (reduced in size) of a matrix implementation in C#. Using...

Posted to B# .NET Blog (Weblog) by bart on 02-27-2007
C# Quiz - call versus callvirt

A little different quiz approach today; starting from IL :-). The question is pretty simple: when does the C# compiler emit a call instruction instead of a callvirt instruction? A little sample to illustrate the non-trivial character of this question: 1 class Call 2 { 3 static void Main() 4 { 5 C c ...

Posted to B# .NET Blog (Weblog) by bart on 02-27-2007
Virtual vs. non-virtual method calls from a perf perspective

Last week, I was doing an introduction session on C# for students with a Java background. There were quite some interesting discussions around the why and how of properties, indexers, operator overloads, events, delegates, attributes, etc compared to "equivalents" in Java. I won't repeat this discussion...

Posted to B# .NET Blog (Weblog) by bart on 02-26-2007
Windows Vista - Introducing TxF in C# (part 3) - CreateFileTransacted demo

In November last year, I blogged about TxF: Windows Vista - Introducing TxF in C# (part 1) - Transacted file delete Windows Vista - Introducing TxF in C# (part 2) - Using System.Transactions and the DTC A few days ago I received a mail from a reader of my blog who had an issue with a similar CreateFileTransacted...

Posted to B# .NET Blog (Weblog) by bart on 02-21-2007

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