create array of structs, accessed by enum

[Zytan]

I have an enum. I want a struct of data associated with each one.
Then, I could use the enum to access the data as needed. In other
words, I want the enum to represent more than just a unique integer.
I want it to represent a struct.

Is there a way to do this nicely?

Searching seems to say "no."

(Enum.GetValues (myenum).Length is not a constant, apparantly, which is
annoying, since I can't use it to *at least* size the array, unless I
want to create it dynamically, which would solve a portion of this
problem, but not all.)

Zytan

[Nicholas Paldino [.NET/C# MVP]]

Re: create array of structs, accessed by enum

Zytan,

You should use a dictionary instead. Even if you could size the array
properly, you would have to cast the enumeration value to an int every time
you tried to get an element from the array.

The dictionary would make it much easier to use.

Hope this helps.


--
- Nicholas Paldino [.NET/C# MVP]
- mvp@spam.guard. caspershouse.co m

"Zytan" <zytanlithium@g mail.comwrote in message
news:1175092467 .283330.69860@d 57g2000hsg.goog legroups.com...

>I have an enum. I want a struct of data associated with each one.
Then, I could use the enum to access the data as needed. In other
words, I want the enum to represent more than just a unique integer.
I want it to represent a struct.
>
Is there a way to do this nicely?
>
Searching seems to say "no."
>
(Enum.GetValues (myenum).Length is not a constant, apparantly, which is
annoying, since I can't use it to *at least* size the array, unless I
want to create it dynamically, which would solve a portion of this
problem, but not all.)
>
Zytan
>

[Zytan]

Re: create array of structs, accessed by enum

You should use a dictionary instead. Even if you could size the array

properly, you would have to cast the enumeration value to an int every time
you tried to get an element from the array.
>
The dictionary would make it much easier to use.

Ok, thanks, I'll reseach dictionaries and see what they are about.

Zytan

[Nicholas Paldino [.NET/C# MVP]]

Re: create array of structs, accessed by enum

Zytan,

If you are using .NET 2.0 or above, then use the generic Dictionary<K,
Vclass in the Sytem.Collectio ns.Generic namespace. If you are using .NET
1.1, then use the Hashtable class in the System.Collecti ons namespace.


--
- Nicholas Paldino [.NET/C# MVP]
- mvp@spam.guard. caspershouse.co m

"Zytan" <zytanlithium@g mail.comwrote in message
news:1175093226 .397737.264090@ y80g2000hsf.goo glegroups.com.. .

> You should use a dictionary instead. Even if you could size the
>array
>properly, you would have to cast the enumeration value to an int every
>time
>you tried to get an element from the array.
>>
> The dictionary would make it much easier to use.

>
Ok, thanks, I'll reseach dictionaries and see what they are about.
>
Zytan
>

[Zytan]

Re: create array of structs, accessed by enum

If you are using .NET 2.0 or above, then use the generic Dictionary<K,

Vclass in the Sytem.Collectio ns.Generic namespace. If you are using .NET
1.1, then use the Hashtable class in the System.Collecti ons namespace.

Thanks, I'm using 2.0. Sounds like Dictionary is a HashTable, except
its strongly typed, and it throws an exception on illegal access.
Dictionary must be a replacement for HashTable.

This should be fine.

Is there any way to initialize a Dictionary in the declaration? I
don't think so, but it'd be beneficial, since it will essentially be a
constant in my program.

Thanks for your help,

Zytan

[Nicholas Paldino [.NET/C# MVP]]

Re: create array of structs, accessed by enum

Zytan,

Unfortunately, no, there is no way to populate the Dictionary in the
declaration. C# 3.0 will have a mechanism to do that, but that's a ways
off.

And you are right, the Dictionary is really just a strongly-typed hash
table.


--
- Nicholas Paldino [.NET/C# MVP]
- mvp@spam.guard. caspershouse.co m

"Zytan" <zytanlithium@g mail.comwrote in message
news:1175098290 .986846.64710@n 76g2000hsh.goog legroups.com...

> If you are using .NET 2.0 or above, then use the generic
>Dictionary<K ,
>Vclass in the Sytem.Collectio ns.Generic namespace. If you are using
>.NET
>1.1, then use the Hashtable class in the System.Collecti ons namespace.

>
Thanks, I'm using 2.0. Sounds like Dictionary is a HashTable, except
its strongly typed, and it throws an exception on illegal access.
Dictionary must be a replacement for HashTable.
>
This should be fine.
>
Is there any way to initialize a Dictionary in the declaration? I
don't think so, but it'd be beneficial, since it will essentially be a
constant in my program.
>
Thanks for your help,
>
Zytan
>

[Zytan]

Re: create array of structs, accessed by enum

Unfortunately, no, there is no way to populate the Dictionary in the

declaration. C# 3.0 will have a mechanism to do that, but that's a ways
off.
>
And you are right, the Dictionary is really just a strongly-typed hash
table.

Ok, great, thanks, Nicholas, your help has been wonderful!

Zytan