Using List Exists Method in C#

[a1jit]

I am having a problem doing the following in generics.

 

I have one custom type array. Its a struct with few elements in it like id, shortname, longname

 

Sample data would be

1, a, australia

2, a, asia

3, b, bangkok

 

The problem im facing is that i want to actually gather all unique shortname

and place it in another List (generic)

 

I plan to create another new List, and then check whether the

element exists in the new List, if not add it, else, move to the next item

 

So i plan to make use of the Exists method in generic (List) but

seems like im not sure how to use it since it has predicate.

 

I hope the above explanation makes sense.

 

Does anyone have some idea of how I might go about this? Any help

(particularly example code) would be much appreciated.

[TaleOfTimes]

Here is a link on how to use predicates:

 

http://msdn.microsoft.com/en-us/library/bfcke1bz(VS.80).aspx

 

Just think of it as a Comperator, except you're only using a method.

[Nate Bross]

If you are using .NET 3.5 and have access to LINQ, you might make use of something like this:

 

var x = from struct s in genericList
                           select s.ShortName;

var distinct = Enumerable.Distinct(x);