C# (.NET 3.5) misses one type of method argument: the default parameter (it will be shipped with .NET 4.0). I have to admit, it happened only once that I missed default parameters in C#. however, there's a workaround to solve this problem: http://msdn.microsoft.com/en-us/library/aa287762(VS.71).aspx
I actually missed it lots of times. You can work around it by overloading the method, but that's boilerplate for a simple concept.
I also miss named arguments (in both Ruby and C#). When reading the code, when a method has more arguments than one I often forget what the arguments are or their positioning, and it is a lot more readable to specify the arguments by their names ...
lockfile( path = '/var/run/script', timeout = 60, on_timeout = handler)
however, it looks like named parameters will be shipped with .NET 4.0: http://geekswithblogs.net/michelotti/archive/2009/01/22/c-4....
no it hasn't. You can't do
public method(String name = "test") {...}