On Tue, Sep 9, 2008 at 5:57 AM, Sébastien Lorion <[EMAIL PROTECTED]> wrote: > My bottom line is, if I control the data and I am 100% sure it won't contain > problematic chars, then by all means, I will use ordinal compare and get the > speed increase. Otherwise, as a non English native myself, I want to make my > apps international and so, I will use the culture aware comparison (and > other operations).
Just be careful what you use the comparison for... Note this highly rated Connect "Won't Fix": https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=236900 I bet this'd be a bugger of a bug to locate. In this snippet you'd expect the two SortedLists to be identical, but they're not, and the reason's clear -- the strings are s1<s2<s3<s1! Dim s1 As String = "-0.67:-0.33:0.33" Dim s2 As String = "0.67:-0.33:0.33" Dim s3 As String = "-0.67:0.33:-0.33" Console.WriteLine(s1.CompareTo(s2)) Console.WriteLine(s2.CompareTo(s3)) Console.WriteLine(s3.CompareTo(s1)) Dim l, m As New SortedList(Of String, Integer) l.Add(S1,1) l.Add(S2,2) l.Add(S3,3) m.Add(S3,3) m.Add(S2,2) m.Add(S1,1) For Each i in m Console.WriteLine(i) Next For Each j in l Console.WriteLine(j) Next Now I know why FXCop and the built-in VS2008 Code Analysis always says to specify the comparer and cultureinfo -- it's not just for performance! Regards, Mark Hurd, B.Sc.(Ma.) (Hons.) =================================== This list is hosted by DevelopMentor® http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com
