Struct\Class Creation

Hi,
I have looked in the docs that come with PowerShell and been searching on
the web to see if it is possible to define my own struct or class within a
script. Have not come across any guidance indicating if this is possible or
not, i'm guessing it is not and would like to confirm this. Can work around
this but is a bit cumbersome when i have a collection of logical entities
that i need to spread across a number of arrays. I guess i expected this as
i'm currently inclined to expect that a lot of the functionality from Ruby
would be available within PowerShell scripting.


Thanks in advance
Pat

"PMcG" <PMcG@discussions.microsoft.com> wrote in message
news:8983A578-ABDD-4505-85D9-F4A6B257D966@microsoft.com...
> Hi,
> I have looked in the docs that come with PowerShell and been searching on
> the web to see if it is possible to define my own struct or class within a
> script. Have not come across any guidance indicating if this is possible
> or
> not, i'm guessing it is not and would like to confirm this. Can work
> around
> this but is a bit cumbersome when i have a collection of logical entities
> that i need to spread across a number of arrays. I guess i expected this
> as
> i'm currently inclined to expect that a lot of the functionality from Ruby
> would be available within PowerShell scripting.
>

In PowerShell you can't create classes or structs in the typical C#/VB
sense. However you can use hashtables to create name/value pairs aka a
property bag. The nice thing about PowerShell / .NET hashtable is that the
value can refer to another hashtable giving you a way to create object
hierarchies. However if you need to plug this into another .NET type that
is expecting a particular type then you are outta luck unless you want to
use Reflection.Emit or LCG (which isn't really using PowerShell anymore) to
gen up code for this purpose.

--
Keith

Keith,
I came across an example where you can do something like this
$MyObj = new-object System.Object
Add-Member -inputobject $MyObj -membertype noteproperty -name Property1
-value 1

Add-Member -inputobject $MyObj -membertype noteproperty -name Property2
-value 1,2,3

Add-Member -inputobject $MyObj -membertype noteproperty -name Property3
-value "......."

write-output $MyObj
write-output $MyObj.Property1

I havn't spend to much time looking into this but works for me


Pat