When and where to Use Dictionary verses Hashtable?

Question

I know advantages and disadvantages of Hashtable and Dictionary.

I want to know when Hash-table is preferred over Dictionary ?

Take a look at http://stackoverflow.com/questions/1089132/net-hashtable-vs-dictionary-can-the-dictionary-be-as-fast and http://stackoverflow.com/questions/301371/why-is-dictionary-preferred-over-hashtable — Soner Gönül, Mar 15 '14 at 12:14
yes i know basics but i don't know the scenrio in which Hash-Table is preferred over Dictionary. — Aftab Ahmed, Mar 15 '14 at 12:14
See the first answer to the first question linked by @SonerGönül this is explained — Chris Ballard, Mar 15 '14 at 12:23
When would you prefer something that's generally slower, not type safe and requires more code from you to use in any non-trivial scenario? — Tony Hopkinson, Mar 15 '14 at 12:28

score 2 · Accepted Answer · answered Mar 15 '14 at 12:23

HashTable is not a Generic Collection, so you can save anytype (object) types into Hashtable and its type is not known at compile time.

Dictionary is a Generic collection so you need to specify the type before saving elements into it, so it is type safe.

I want to know when Hash-table is preferred over Dictionary ?

i don't think this is true because Dictionary is Typesafe and also faster because of no burden of boxing and unboxing of the elements as its elements type is known at compile time.

so you should consider using Dictionary over Hash-Table

When and where to Use Dictionary verses Hashtable?

1 Answers1