internal/Get-ObjectPropertyValue.ps1
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<# .SYNOPSIS Get object property value. .EXAMPLE PS C:\>$object = New-Object psobject -Property @{ title = 'title value' } PS C:\>$object | Get-ObjectPropertyValue -Property 'title' Get value of object property named title. .EXAMPLE PS C:\>$object = New-Object psobject -Property @{ lvl1 = (New-Object psobject -Property @{ nextLevel = 'lvl2 data' }) } PS C:\>Get-ObjectPropertyValue $object -Property 'lvl1', 'nextLevel' Get value of nested object property named nextLevel. .INPUTS System.Collections.Hashtable System.Management.Automation.PSObject #> function Get-ObjectPropertyValue { [CmdletBinding()] [OutputType([psobject])] param ( # Object containing property values [Parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $true)] [AllowNull()] [psobject] $InputObjects, # Name of property. Specify an array of property names to tranverse nested objects. [Parameter(Mandatory = $true, ValueFromRemainingArguments = $true)] [string[]] $Property ) process { foreach ($InputObject in $InputObjects) { for ($iProperty = 0; $iProperty -lt $Property.Count; $iProperty++) { ## Get property value if ($InputObject -is [hashtable]) { if ($InputObject.ContainsKey($Property[$iProperty])) { $PropertyValue = $InputObject[$Property[$iProperty]] } else { $PropertyValue = $null } } else { $PropertyValue = Select-Object -InputObject $InputObject -ExpandProperty $Property[$iProperty] -ErrorAction Ignore } ## Check for more nested properties if ($iProperty -lt $Property.Count - 1) { $InputObject = $PropertyValue if ($null -eq $InputObject) { break } } else { Write-Output $PropertyValue } } } } } |