Charlie Charlie - 1 month ago 11 Question

What is the Generic version of a Hashtable?

I been learning basics of generics and it looks like it can really improve the performance of the application.
But, I am not able to see the generic equivalent of Hashtable.
Please share some sample C# code for creating generic hashtable classes. I need this for a demo.

edit:Thanks for the answers.


Dictionary<TKey, TValue>

Note that Dictionary is not a 100% drop in replacement for HashTable.

There is a slight difference in the way they handle NULLs. The dictionary will throw an exception if you try to reference a key that doesn't exist. The HashTable will just return null. The reason is that the value might be a value type, which cannot be null. In a Hashtable the value was always Object, so returning null was at least possible.