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Strong-Typed Resizable Arrays
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Alex Maghen (VIP)
Hi. I'm trying to find the absolute most lightweight, efficient array type
that supports:
1. Strongly-typed entries (e.g. not all items of type "Object")
2. Ability to Add() and Remove()

I see that the C# built-in array type doesn't support resizing. The
framework ArrayList supports resizing but doesn't seem to allow a fixed entry
type. How do I do this?

Alex
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Jon Skeet [C# MVP] (VIP)
Alex Maghen <Click here to reveal e-mail address> wrote:
[Original message clipped]

The "real answer" is coming in Whidbey - VS.NET 2005 - in the form of
generics. If that's too long to wait, I believe there are various
"properly strongly typed" collection class generators available on the
net, that will give an ArrayList-like interface with a strongly typed
backing array. (That gets round the boxing problem for value types.)

--
Jon Skeet - <Click here to reveal e-mail address>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
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Alex Maghen (VIP)
Wow... really? I mean... wow. Doesn't that seem like a somewhat... starnge
thing not to have as integral to... y'know what? Far be it from me to
criticize. Not like I wrote .NET or anything. Okay, thanks.

Alex

"Jon Skeet [C# MVP]" wrote:

[Original message clipped]
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Jon Skeet [C# MVP] (VIP)
Alex Maghen <Click here to reveal e-mail address> wrote:
[Original message clipped]

It would certainly have been nice if generics had been in 1.1, but to
be honest I've never had any actual *problems* from using ArrayList,
other than the performance concerns of boxing value types. The type
safety issue is definitely something I'll be pleased not to have to
worry about, but I can't think of a single time where it's been an
actual problem for me.

--
Jon Skeet - <Click here to reveal e-mail address>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
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Jakob Christensen
I have used Chris Sells collection generator on several occasions (couldn't
wait for Whidbey). His collections use strongly typed backing arrays (as
John Skeet mentions) except for the strongly typed hashtables.

http://www.sellsbrothers.com/tools/#collectionGen

Regards, Jakob.

"Alex Maghen" wrote:

[Original message clipped]
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mdb
"=?Utf-8?B?QWxleCBNYWdoZW4=?=" <Click here to reveal e-mail address>
wrote in news:Click here to reveal e-mail address:
[Original message clipped]

Choose one of:

1) If you are using (or can wait for the final release of) .NET 2.0, you
can use Generics.
2) Write your own storage class
3) If you are using strings, you can use the StringCollection class in
System.Collections.Specialized namespace.

-mdb
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System.Collections.ArrayList
System.Collections.Specialized.StringCollection




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