Powershell DynamicParam ValitateSetAtrribute

function Get-Products {
    param(
        [parameter(ParameterSetName="Check")][switch]$IsInstalled  
    )

    DynamicParam{
        
       

        if ($IsInstalled.IsPresent){
              $attrCollection = new-object System.Collections.ObjectModel.Collection[System.Attribute]
             $attrCollection2 = new-object System.Collections.ObjectModel.Collection[System.Attribute]
            $paramDic = new-object System.Management.Automation.RuntimeDefinedParameterDictionary
            # Attribute für Parameter 1 definieren
            $attr = new-object System.Management.Automation.ParameterAttribute
            $attr.Mandatory = $false
            $attrValidate = New-Object ValidateSet('32bit','64bit','Both')  
            $attrCollection.Add($attr)
            $attrCollection.Add($attrValidate)
            
            # Attribute für Parameter 2 definieren
            $attr2 = new-object System.Management.Automation.ParameterAttribute
            $attr2.Mandatory = $false
            $attrValidate2 = New-Object ValidateSet('Test1','Test2','Test3')  
            $attrCollection2.Add($attr2)
            $attrCollection2.Add($attrValidate2)


            # Parameter definieren
            $dynParam1 = new-object System.Management.Automation.RuntimeDefinedParameter("DoingA1", [String], $attrCollection)  
            $dynParam2 = new-object System.Management.Automation.RuntimeDefinedParameter("DoingA2", [String], $attrCollection2)  
            
            # Parameter zum Dictionary hinzufügen
            $paramDic.Add("DoingA1", $dynParam1)  
            $paramDic.Add("DoingA2", $dynParam2)  
            return $paramDic
        }

    }

    begin{}
    
    process{
        write-host $PSBoundParameters.DoingA1
        write-host $PSBoundParameters.DoingA2
    }
    
    end{}
}

Get-Products -IsInstalled -DoingA1 32bit -DoingA2 Test1