Strict type for Hashtable?

13 Jul 2006 11:45 PM

Shane

I thought that arrays and hash tables could be strictly typed under 2.0
instead of just being objects, but I can't find any documentation.

I want to have the values in a hash table designated as a string type,
so that I don't have to keep doing something like:

strSomething = CStr(hashtable(Key))

I'd rather have
strSomething = hashtable(Key)

Do the hashtables support this? If they do, what is the syntax?

Thanks,
Shane

14 Jul 2006 2:19 AM

GhostInAK

Hello Shane,

Check out the System.Collections.Generic namespace and look up the documentation
on the new "Of" keyword.

-Boo

Show quoteHide quote

> I thought that arrays and hash tables could be strictly typed under
> 2.0 instead of just being objects, but I can't find any documentation.
>
> I want to have the values in a hash table designated as a string type,
> so that I don't have to keep doing something like:
>
> strSomething = CStr(hashtable(Key))
>
> I'd rather have
> strSomething = hashtable(Key)
> Do the hashtables support this? If they do, what is the syntax?
>
> Thanks,
> Shane

14 Jul 2006 5:21 AM

David Anton

Yes, but the generic hashtable is the Dictionary(Of T) in the
System.Collections.Generic namespace.
e.g.,
Dim GenericHashtable As New Dictionary(Of String)
GenericHashtable.Add(somekey, somestring)
Dim thisString = GenericHashtable(somekey)

(also, List(Of T) is the generic replacement for ArrayList in 2.0)

--
David Anton
www.tangiblesoftwaresolutions.com
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"Shane" wrote:

> I thought that arrays and hash tables could be strictly typed under 2.0
> instead of just being objects, but I can't find any documentation.
>
> I want to have the values in a hash table designated as a string type,
> so that I don't have to keep doing something like:
>
> strSomething = CStr(hashtable(Key))
>
> I'd rather have
> strSomething = hashtable(Key)
>
> Do the hashtables support this? If they do, what is the syntax?
>
> Thanks,
> Shane
>
>