Friday, February 02, 2007 : CSharp Feeds

Anonymous Recursion in C#

by wesdyer via Yet Another Language Geek on 2/2/2007 10:17:00 PM

Recursion is beautiful and lambdas are the ultimate abstraction. But how can they be used together? Lambdas are anonymous functions and recursion requires names. Let's try to define a lambda that computes the nth fibonacci number. Func<int, int> fib = n => n > 1 ? fib(n - 1) + fib(n - 2) : n; But this doesn't work. The compiler will complain about the use of fib in the lambda. Use of unassigned local variable 'fib' Eric Lippert has a great blog post on ...

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Context Help Made Easy

by Tom Clement via The Code Project Latest Articles on 2/2/2007 8:12:00 PM

This article introduces a new way of instrumenting your code that enables help authors associate help topics with the application’s visual contexts at any time - even post-compilation – and to do so using the application’s user interface without the involvement of the developer. ...

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More on properties vs fields

by Eric Gunnerson via Eric Gunnerson's Compendium : CSharp on 2/2/2007 7:59:00 PM

Some nice comments on what I wrote. First, a non-controversial question. Robin asked whether you would capitalize them in that case, and I think you should, as having something accessed externally that isn't properly cased will be surprising to people. Dani - and others - have pointed out that properties leave your options open in case the software is used in ways that make the property more useful. This is certainly true, and I think it comes down to how you value that flexibility over the tax ...

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Timer surprises, and how to avoid them

by Luc Pattyn via The Code Project Latest Articles on 2/2/2007 7:32:00 PM

A simple app demonstrates unexpected behavior of .NET timers and Thread.Sleep(); native multimedia timers come to the rescue. ...

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Anonymous Recursion in C#

by wesdyer via Yet Another Language Geek on 2/2/2007 7:17:00 PM

Recursion is beautiful and lambdas are the ultimate abstraction. But how can they be used together? Lambdas are anonymous functions and recursion requires names. Let's try to define a lambda that computes the nth fibonacci number. Func<int, int> fib = n => n > 1 ? fib(n - 1) + fib(n - 2) : n; But this doesn't work. The compiler will complain about the use of fib in the lambda. Use of unassigned local variable 'fib' Eric Lippert has a great blog post on ...

[ read more ]