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Hash Table -- Maya --
Hello, In a hashtable, is there a way to do an "order by" or a similar feature to the value field in the hashtable? Thanks. Maya |
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-- BradleyPeter --
There may be, but I never found one. In one application I was reduced to doing the sorting in a loop (Blerrgh!). But you can see the problem. The whole point about a HashTable is that it isn't ordered. But having said that, most other languages I've used have provided keys() and values() methods that returned ordered sets IIRC - or maybe you had to do a sort() on them ... Perhaps I ought to extend HashTable and make a SortedHashTable class. Hmm... The easiest method, though, would probably be to put the keys (or the values, I suppose) into an array or ArrayList and then sort them. This only works, though, if you only want the keys or values sorted. ICollection has a CopyTo(Array) method that you could probably use: mySortedArray = ((myHash.Keys()).CopyTo(anArray)).Sort(); ... or something. It wouldn't be too difficult from there to sort the ListItems in the HashTable in key or value order in a different array/ArrayList, I wouldn't think. Just some ideas off the top of my head. They are worth what you paid for them. :) PAE -----Original Message----- From: DotNetDevelopment Hash Table Hello, In a hashtable, is there a way to do an "order by" or a similar feature to the value field in the hashtable? Thanks. Maya |
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-- Maya --
Thank you peter |