Extending Get-Service with add-member

Hi,

I am trying to use add-member to get "StartMode" as a property when I
run get-service. I am just playing with add-member for now, but would
eventually like to add it to my customized types ps1xml file for the
[System.ServiceProcess.ServiceController] class

I have something that is sort of working but extrememly slow and the
output is a little funky

PS> $svc = get-service

PS> $svc | Add-member ScriptProperty StartMode {get-wmiobject
win32_service | where {$_.Name -eq $this.Name} | format-list
StartMode}

PS> $ $svc | fl Name,StartMode


Name : Alerter
StartMode : @{startmode=Disabled}

Name : ALG
StartMode : @{startmode=Manual}

So I really have two questions, the first is "Does anyone have any
ideas on how to speed this up? I think the WMI Query is killing me
here

Second question is how can I get the output to look like

Name : Alerter
StartMode : Disabled

rather than StartMode: @{startmode=disabled}

Any help would be greatly appreciated

Thanks,

Andy

The best improvement I can think of would be to let WMI do the query instead
of pulling all the Win32_Service objects out and doing a PSH-style query on
them, like so:

$svc | add-member ScriptProperty StartMode { get-wmiobject
Win32_Service -filter "name='$($this.Name)'" | foreach { $_.StartMode } }

Using the -filter property may get the performance to where you need it...it
certainly caused a noticeable improvement for me. If it doesn't, then you'll
probably need to do some sort of caching or something, probably by combining
a ScriptProperty with a NoteProperty or something. If you still feel it's
not fast enough after trying the -filter parameter, reply to this and we can
talk about how to do it.

Note that I pipe the resulting WMI object into foreach and pull out the
StartMode property -- that fixes the display issue you're seeing. The reason
you're getting the behaviour you are is because format-list actually returns
a stream of formatting helper objects (pipe format-list into get-member to
see what the deal is with it), which is intended for displaying as a list,
not wrapping around the value of one property. Hope this helps.

-- Ryan Milligan

"ASCHNEIDER146" <aschneider146@gmail.com> wrote in message
news:1170788413.331703.63160@m58g2000cwm.googlegroups.com...
> Hi,
>
> I am trying to use add-member to get "StartMode" as a property when I
> run get-service. I am just playing with add-member for now, but would
> eventually like to add it to my customized types ps1xml file for the
> [System.ServiceProcess.ServiceController] class
>
> I have something that is sort of working but extrememly slow and the
> output is a little funky
>
> PS> $svc = get-service
>
> PS> $svc | Add-member ScriptProperty StartMode {get-wmiobject
> win32_service | where {$_.Name -eq $this.Name} | format-list
> StartMode}
>
> PS> $ $svc | fl Name,StartMode
>
>
> Name : Alerter
> StartMode : @{startmode=Disabled}
>
> Name : ALG
> StartMode : @{startmode=Manual}
>
> So I really have two questions, the first is "Does anyone have any
> ideas on how to speed this up? I think the WMI Query is killing me
> here
>
> Second question is how can I get the output to look like
>
> Name : Alerter
> StartMode : Disabled
>
> rather than StartMode: @{startmode=disabled}
>
> Any help would be greatly appreciated
>
> Thanks,
>
> Andy
>