Can I call a cmdlet using variable?

Question

I have a function with 34 parameters that looks roughly like this:

function ABCDE{
[CmdletBinding()]
param (
[Parameter()]
[Switch] $MyObject,
[Parameter()]
[Switch] $OptionA,
[Parameter()]
[Switch] $OptionB,
[Parameter()]
[Switch] $OptionC
)

if($OptionA)
{
Set-OptionA -Object $Myobject
}

if($OptionB)
{
Set-OptionB -Object $Myobject
}

}

and so on for 34 parameters...

Can I somehow clean up it and use one foreach instead? I would see it like this:

function ABCDE{
[CmdletBinding()]
param (
[Parameter()]
[Switch] $MyObject,
[Parameter()]
[Switch] $OptionA,
[Parameter()]
[Switch] $OptionB,
[Parameter()]
[Switch] $OptionC
)

foreach($parameter in $this.Parameters){
if($parameter.IsPresent){
Set-$parameter.Name -Object $MyObject
}
}

Is something like this possible? To use parameter in the cmdlet name?

Answer 1

Hi Ana，
You could use $PSBoundParameters to get the parameters passed to the function and use & to run a command. The script could be like this

foreach ($Parameter in $PSBoundParameters.Keys) {  
    if ($parameter -ne "MyObject") {  
        $cmd = "Set-" + $Parameter  
        &$cmd -Object $MyObject  
    }  
}  

When you run ABCDE -OptionA -OptionB -MyObject $obj, the function will call Set-OptionA -Object $obj and Set-OptionB -Object $obj

Best Regards,
Ian

============================================

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Answer 2

Yes, you can.

function p1{
    param(
        $MyObject,
        [array]$Options
    )

    function Set-OptionA{
        param($obj)
        "Setting OptionA - $obj"
    }
    function Set-OptionB{
        param($obj)
        "Setting OptionB - $obj"
    }

    $Options |
        ForEach-Object{
            Invoke-Expression "Set-Option$_ $MyObject"
        }
}

p1 "Boo" "A","B"
p1 $false "A","C", "B"