Custom function, value from pipeline - powershell

Question

This a function for changing local user password on a remote machine. I'd like to make it work with a value from pipeline. This works:
$x= #()
$x += Set-UserPassword -ComputerName smz0017d -User localadmin -NewPassword "1"
$x += Set-UserPassword -ComputerName smz0027d -User localadmin -NewPassword "2"
$x | Out-GridView
But with value from pipeline it doesn't. Any tips?
$x = #()
$x += [pscustomobject]#{
ComputerName = 'smzmi0027d'
User = 'localadmin'
NewPassword = 'djkufdjkuf1234'
}
$x += [pscustomobject]#{
ComputerName = 'smzmi0027d'
User = 'localadmin'
NewPassword = '1'
}
foreach ($y in $x)
{
$y | Set-UserPassword
}
The function to accept value from a pipeline. It invokes command on a remote machine and builds custom object with a result:
function Set-UserPasswordLocaly
{
[CmdletBinding()]
param
(
[Parameter(Mandatory = $true,
Position = 0)]
[string]$User,
[Parameter(Mandatory = $true,
Position = 1)]
[string]$NewPassword
)
#TODO: Place script here
try
{
Set-LocalUser -Name $User -Password (ConvertTo-SecureString $NewPassword -AsPlainText -Force) -ErrorAction Stop
$pwdSetResult = "$user password has been changed"
$isSuccess = $true
}
catch
{
$pwdSetResult = ($_.Exception).Message
$isSuccess = $false
}
return [PSCustomObject]#{
'ComputerName' = $env:COMPUTERNAME
'isSuccess' = $isSuccess
'Message' = $pwdSetResult
}
}
function Set-UserPasswordRemotely
{
[CmdletBinding()]
param
(
[Parameter(Mandatory = $true,
Position = 0)]
[string]$ComputerName,
[Parameter(Mandatory = $true,
Position = 1)]
[string]$User,
[Parameter(Mandatory = $true,
Position = 2)]
[string]$NewPassword
)
#TODO: Place script here
$param = #{
ComputerName = $ComputerName
ScriptBlock = ${function:Set-UserPasswordLocaly}
ArgumentList = $User, $NewPassword
ErrorAction = 'stop'
}
try
{
$invoke = Invoke-Command #param
$invokeResult = $invoke.Message
$isSuccess = $invoke.isSuccess
}
catch
{
$invokeResult = ($_.Exception).Message
$isSuccess = $false
}
return [PSCustomObject]#{
'ComputerName' = $ComputerName
'isSuccess' = $isSuccess
'Message' = $invokeResult
}
}
function Set-UserPassword
{
[CmdletBinding()]
param
(
[Parameter(Mandatory = $true,
Position = 0)]
[string]$ComputerName,
[Parameter(Mandatory = $true, ValueFromPipelineByPropertyName = $true,
Position = 1)]
[string]$User,
[Parameter(Mandatory = $true, ValueFromPipelineByPropertyName = $true,
Position = 2)]
[string]$NewPassword,
[Parameter(Position = 3,ValueFromPipelineByPropertyName = $true)]
[string]$PasswordVersion
)
#TODO: Place script here
PROCESS
{
if ($env:COMPUTERNAME -eq $ComputerName)
{
Set-UserPasswordLocaly $User $NewPassword
}
else
{
Set-UserPasswordRemotely $ComputerName $User $NewPassword
}
}
}

Answer 1

The ComputerName parameter in Set-UserPassword is not configured to accept pipeline input. Change that and it'll work:
function Set-UserPassword
{
[CmdletBinding()]
param
(
[Parameter(Mandatory = $true, ValueFromPipelineByPropertyName = $true,
Position = 0)]
[string]$ComputerName,
[Parameter(Mandatory = $true, ValueFromPipelineByPropertyName = $true,
Position = 1)]
[string]$User,
[Parameter(Mandatory = $true, ValueFromPipelineByPropertyName = $true,
Position = 2)]
[string]$NewPassword,
[Parameter(Position = 3,ValueFromPipelineByPropertyName = $true)]
[string]$PasswordVersion
)
# I'm using Write-Host to demonstrate binding behavior, replace with your actual code
process { Write-Host $PSBoundParameters }
}
PS ~> [pscustomobject]#{
>> ComputerName = 'smzmi0027d'
>> User = 'localadmin'
>> NewPassword = '1'
>> } |Set-UserPassword
>>
[NewPassword, 1] [User, localadmin] [ComputerName, smzmi0027d]