Private/Get-ParameterValues.ps1
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# Credit to Joel - https://gist.github.com/Jaykul/72f30dce2cca55e8cd73e97670db0b09 function Get-ParameterValues { <# .Synopsis Get the actual values of parameters which have manually set (non-null) default values or values passed in the call .Description Unlike $PSBoundParameters, the hashtable returned from Get-ParameterValues includes non-empty default parameter values. NOTE: Default values that are the same as the implied values are ignored (e.g.: empty strings, zero numbers, nulls). .Example function Test-Parameters { [CmdletBinding()] param( $Name = $Env:UserName, $Age ) $Parameters = . Get-ParameterValues # This WILL ALWAYS have a value... Write-Host $Parameters["Name"] # But this will NOT always have a value... Write-Host $PSBoundParameters["Name"] } #> [CmdletBinding()] param( # The $MyInvocation for the caller -- DO NOT pass this (dot-source Get-ParameterValues instead) $Invocation = $MyInvocation, # The $PSBoundParameters for the caller -- DO NOT pass this (dot-source Get-ParameterValues instead) $BoundParameters = $PSBoundParameters ) if($MyInvocation.Line[($MyInvocation.OffsetInLine - 1)] -ne '.') { throw "Get-ParameterValues must be dot-sourced, like this: . Get-ParameterValues" } if($PSBoundParameters.Count -gt 0) { throw "You should not pass parameters to Get-ParameterValues, just dot-source it like this: . Get-ParameterValues" } $ParameterValues = @{} foreach($parameter in $Invocation.MyCommand.Parameters.GetEnumerator()) { # gm -in $parameter.Value | Out-Default try { $key = $parameter.Key if($null -ne ($value = Get-Variable -Name $key -ValueOnly -ErrorAction Ignore)) { if($value -ne ($null -as $parameter.Value.ParameterType)) { $ParameterValues[$key] = $value } } if($BoundParameters.ContainsKey($key)) { $ParameterValues[$key] = $BoundParameters[$key] } } finally {} } $ParameterValues } |