How to omit powershell parameter from cmdlet if value not provided?

Question

I'm trying to execute a below Powershell command to create a new address list on exchange server with parameters like Name, Container, etc.

Container is an optional input/parameter, how do I omit it from cmdlet if its value is not provided?

I tried with IF conditionals but but does not seems working. Any help here?

New-AddressList -Name -Container \test MyAddressList5 -ConditionalStateOrProvince maha -IncludedRecipients MailboxUsers

Answer 1

You can pass needed parameters with their corresponding values via hashtable. Add If/Else conditions to include properties. Like so:

$Container  = '\test MyAddressList5'

$Parameters = @{}
$Parameters.Add('ConditionalStateOrProvince','maha')
$Parameters.Add('IncludedRecipients','MailboxUsers')
if($Container){$Parameters.Add('Container',$Container)}

New-AddressList @Parameters

Also, when you need to include Switch parameter just pass $True. Like so:

$Parameters.Add('SomeSwitchParameter',$True)