Re: Sorted Dictionary / List woes.

I believe a SortedList is what you want, but you should add the
Messages in order, to keep them *sorted* on DateTime.

// Ryan

On Nov 13, 2007 4:16 PM, Bhatnagar, Amit <[email protected]> wrote:
> Hi All.
>
> I have a problem that I think a
> System.Collections.Generic.SortedList/Dictionary can solve, but I am
> unable to get it to work.
>
> I want to store a list of messages in a collection where I can check if
> an entry already exists quickly (dictionary), but also be able to return
> these messages in chronological order - so I thought a SortedDictionary
> is what I wanted to do here.
>
> So I create it like SortedDictionary<long, MessageInfo> where
> MessageInfo is a class that contains all the required info of a message,
> and the long key is a unique identifier so I know if I am adding
> duplicates.
>
> Now what I wanted to do is create a IComparer<> on the DateTime within
> the MessageInfo so that the SortedDictionary would use that to sort, but
> it seems that the IComparer I make has to work on the type of the key
> (in this case, long), or it won't complile. I guess it is only ment to
> sort the keys of the key/value pair.
>
> Does anyone know what else I could do so I can have a collection that is
> keyed on a unique ID, but also have the ability to return these values
> in chronological order?
>
> thanks.
>
>
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>