Hi,
Is it possible to create a case-insensitive List<stringcollection?
E.g.
List<stringMyList = new List<string>;
MyList.Add("MyString");
So that:
MyList.Contains("mystring")
MyList.Contains("MyString")
MyList.Contains("MYSTRING")
all return true.
Google shows plenty of examples of how to do this with Dictionary<string,
stringcollections e.g.
Dictionary<string, stringMyDictionary = new Dictionary<string,
string>(StringComparer.CurrentCultureIgnoreCase);
but I can't find an equivalent for List<string>...
Any assistance gratefully received.
Mark 4 23904
Mark,
No, the List does not support any other comparison for Contains. You
will have to use the dictionary method to determine if you have a
case-insensitive string in your set.
Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com
"Mark Rae" <ma**@markNOSPAMrae.comwrote in message
news:Og****************@TK2MSFTNGP05.phx.gbl...
Hi,
Is it possible to create a case-insensitive List<stringcollection?
E.g.
List<stringMyList = new List<string>;
MyList.Add("MyString");
So that:
MyList.Contains("mystring")
MyList.Contains("MyString")
MyList.Contains("MYSTRING")
all return true.
Google shows plenty of examples of how to do this with Dictionary<string,
stringcollections e.g.
Dictionary<string, stringMyDictionary = new Dictionary<string,
string>(StringComparer.CurrentCultureIgnoreCase);
but I can't find an equivalent for List<string>...
Any assistance gratefully received.
Mark
Mark Rae wrote:
Hi,
Is it possible to create a case-insensitive List<stringcollection?
E.g.
List<stringMyList = new List<string>;
MyList.Add("MyString");
So that:
MyList.Contains("mystring")
MyList.Contains("MyString")
MyList.Contains("MYSTRING")
all return true.
Google shows plenty of examples of how to do this with Dictionary<string,
stringcollections e.g.
Dictionary<string, stringMyDictionary = new Dictionary<string,
string>(StringComparer.CurrentCultureIgnoreCase);
but I can't find an equivalent for List<string>...
Any assistance gratefully received.
Mark
No, but you can get the information you need from a regular List<string>:
List<strings = new List<string>();
bool contains = null != s.Find(delegate(string str)
{
return str.ToLower().Equals("MyString".ToLower());
});
HTH,
Andy
--
You can email me directly by removing the NOSPAm below xm**********@gmxNOSPAm.netNOSPAm
Hi,
Performing case-insensitive comparisons using ToLower/ToUpper are very
expensive, a much more efficient means is to use String.Compare. For some
non-English languages the ToLower solution is also not accurate/correct. See
my post on case-insensitive string comparisons: http://dotnetjunkies.com/WebLog/chri.../07/21393.aspx
--
Chris Taylor http://dotnetjunkies.com/weblog/chris.taylor
"Andreas Mueller" <me@privacy.netwrote in message
news:4n************@individual.net...
Mark Rae wrote:
>Hi,
Is it possible to create a case-insensitive List<stringcollection?
E.g.
List<stringMyList = new List<string>; MyList.Add("MyString");
So that:
MyList.Contains("mystring") MyList.Contains("MyString") MyList.Contains("MYSTRING")
all return true.
Google shows plenty of examples of how to do this with Dictionary<string, stringcollections e.g.
Dictionary<string, stringMyDictionary = new Dictionary<string, string>(StringComparer.CurrentCultureIgnoreCase );
but I can't find an equivalent for List<string>...
Any assistance gratefully received.
Mark
No, but you can get the information you need from a regular List<string>:
List<strings = new List<string>();
bool contains = null != s.Find(delegate(string str)
{
return str.ToLower().Equals("MyString".ToLower());
});
HTH,
Andy
--
You can email me directly by removing the NOSPAm below xm**********@gmxNOSPAm.netNOSPAm
"Chris Taylor" <ch*************@hotmail.comwrote in message
news:%2****************@TK2MSFTNGP02.phx.gbl...
Performing case-insensitive comparisons using ToLower/ToUpper are very
expensive, a much more efficient means is to use String.Compare. For some
non-English languages the ToLower solution is also not accurate/correct.
See my post on case-insensitive string comparisons: http://dotnetjunkies.com/WebLog/chri.../07/21393.aspx
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