VB.NET powershell Pipeline.Invoke: pass $NULL as value

[Tim Munro]

Hi all,
I need to be able to pass the Powershell $null value as a parameter to a
powershell pipeline invocation:

EG:
Mycomand = new command("set-mailbox")
MyCommand.Parameters.add("Identity",sCN)
MyCommand.Parameters.add("AcceptMessagesOnlyFrom", <I need the NULL value
here>)

Anything I've tried has resulted in a
Microsoft.Exchange.configuration.Tasks.....

Or I need some other way to clear this attribute from VB.NET (2008)

Pardon the minimal code, but every other aspect of the pipline invocation
works just fine. The only thing I cna't do is pass a "Null" as a parameter
value.

Thanks.

 

[Karl Mitschke]

Hello Tim,

Hi all,
I need to be able to pass the Powershell $null value as a
parameter to a
powershell pipeline invocation:
EG:
Mycomand = new command("set-mailbox")
MyCommand.Parameters.add("Identity",sCN)
MyCommand.Parameters.add("AcceptMessagesOnlyFrom", <I need the NULL
value

here>> )
here>>

Anything I've tried has resulted in a
Microsoft.Exchange.configuration.Tasks.....

Or I need some other way to clear this attribute from VB.NET (2008)

Pardon the minimal code, but every other aspect of the pipline
invocation works just fine. The only thing I cna't do is pass a "Null"
as a parameter value.

Thanks.

Have you tried NULL?

Kar

 

[Mike Pfeiffer]

try:

MyCommand.Parameters.add("AcceptMessagesOnlyFrom", Nothing)

 

[Tim Munro]

I tried NULL, but VB doesn't recognize it. It wants "Nullable" or
"Nullable(of T)", or "NullReferenceException". Non of which I really
understand.

 

[Tim Munro]

Mike! "Nothing" worked perfectly. Thank you very much.

 

[Mike Pfeiffer]

Your welcome Tim, glad to help.

Mike! "Nothing" worked perfectly. Thank you very much.

--
Tim.




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