Powershell: Turn list output into an array of objects or something similar using Powershell

Question

I know how to return hashtables, arrays etc from Powershell to c# through PSObjects. In order to use that, I need to return an object from the Powershell script - not just list the output.

But how can I get from a list in Powershell to something structured I can return from the Powershell script?

Think about this simple scenario (for example purposes):

Get-ChildItem C:\Test

And I get something like this output:

PS C:\test> Get-ChildItem

Directory: C:\test

Mode                LastWriteTime     Length Name
----                -------------     ------ ----
-a---        03.06.2013     14:59          6 test1.txt
-a---        03.06.2013     14:59          5 test2.txt

Now I want to take the Name and Length property of each file and return it from the powershell script as some sort of object, I can process with C#.

An example of something I could handle from C# would be this:

$a = New-Object psobject -Property @{
   Name = "test1.txt"
   Age = 6
}

$b = New-Object psobject -Property @{
    Name = "test2.txt"
    Age = 5
}

$myarray = @()

$myarray += $a
$myarray += $b

Return $myarray

How do I get from Get-ChildItem (or something similar that gives a list) to an array of objects or something similar?

Please note that this is not about Get-ChildItem specifically, it is just used as an example of something that outputs a list.

Shay Levy · Accepted Answer · 2013-06-03 13:18:14Z

8

Something like that should do it:

$arr = Get-ChildItem | Select-Object Name,Length
return $arr

If for some reason it doesn't work, try nesting the array in a one array element (using the comma operator)

return ,$arr

answered Jun 3, 2013 at 13:18

Shay Levy

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2 Comments

E.V.I.L. Over a year ago

I like wheels. So...$arr = (Get-ChileItem | % {[PSCustomObject]@{Name=$_.Name;Lenght=$_.Length}})

Shay Levy Over a year ago

You're taking the longer route but it is a valid route :)

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