PSObject sorting

Question

I am trying to format a PSObject related to a question a few days back. My object looks like this:

New-Object PSObject -Property @{
    "Version"= $winVersion.Caption
    "Processor Name" = $processorInfo.Name
    "Processor Manufacturer" = $processorInfo.Manufacturer
    "Processor Max Clock Speed" = $processorInfo.MaxClockSpeed     
} |format-list

The above gives the following output:

Processor Manufacturer    : GenuineIntel
Processor Max Clock Speed : 2201
Version                   : Microsoft Windows 8 Pro
Processor Name            : Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz

However, this:

New-Object PSObject -Property @{
    "Windows Version"= $winVersion.Caption
    "Processor Name" = $processorInfo.Name
    "Processor Manufacturer" = $processorInfo.Manufacturer
    "Processor Max Clock Speed" = $processorInfo.MaxClockSpeed     
} |format-list

gives the following output:

Processor Manufacturer    : GenuineIntel
Processor Max Clock Speed : 2201
Processor Name            : Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz
Windows Version           : Microsoft Windows 8 Pro

Not really a big deal, but I wonder why the formatting changes? It does not seem to be alphabetical in any way. Furthermore, I tried sorting the object with Sort-Object (from A-Z) but to no avail. Is it String related?

This may be of use: http://stackoverflow.com/a/3282208/1035521 — David Martin, Sep 16 '13 at 12:07

score 4 · Accepted Answer · edited Dec 06 '18 at 21:29

The order of a hashtable can't be predicted (in PowerShell V3.0 you can user the [ordered] accelerator to make an hashtable ordered), but in V2.0 you need to build your custom object like this to preserve properties order:

$o = New-Object PSObject
 $o | add-member Noteproperty  "Version"  $winVersion.Caption
 $o | add-member Noteproperty  "Processor Name" $processorInfo.Name
 $o | add-member Noteproperty  "Processor Manufacturer" $processorInfo.Manufacturer
 $o | add-member Noteproperty  "Processor Max Clock Speed" $processorInfo.MaxClockSpeed

$o | format-list

score 2 · Answer 2 · edited Dec 06 '18 at 21:28

You can still add a custom method to your object to provide the format you want, for example:

$test = New-Object PSObject -Property @{
    "Processor Manufacturer"="GenuineIntel"
    "Processor Max Clock Speed" = "2201"
    "Version"="Microsoft Windows 8 Pro"
}
Add-Member -MemberType ScriptMethod -Name "show" -Value {echo $this.version;echo $this."processor manufacturer";echo $this."Processor Max Clock Speed"} -inputObject $test

$test.show()

score 0 · Answer 3 · edited Apr 30 '23 at 19:57

0

This:

new-object psobject -property ([ordered]@{key1=$value1; key2=$value2})

edited Apr 30 '23 at 19:57

Brian Tompsett - 汤莱恩

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answered Apr 28 '23 at 00:43

Angel angelbar Barrientos

1

PSObject sorting

3 Answers3

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