Confusing prompt for a [bool] value (V2 CTP)

Run this (script cmdlet with a mandatory [bool] parameter), input various
values and watch the results (Ctrl-C to stop). Everything except an empty
string is converted into True.

# begin test
cmdlet Test-Me
{
param ( [Mandatory][bool]$Bool )
$CommandLineParameters
}
for(; { Test-Me }
# end test

Output (filtered):
Bool: 1
Bool True
Bool: 0
Bool True
Bool: True
Bool True
Bool: False
Bool True
Bool: $True
Bool True
Bool: $False
Bool True
Bool:
Bool False

The question:
Is this by design, a bug or am I missing something?

--
Thanks,
Roman Kuzmin

http://code.google.com/p/farnet/
PowerShell and .NET in FAR Manager

I've never seen anyone try using [bool]. What are you trying to
accomplish exactly? I discussed this with Don Jones, and he indicated
perhaps you should be using [switch] if your goal is to determine
whether a parameter is set or not, instead of trying to do something like:
cmdlet -parameter true <--bool which you're trying
Just do
cmdlet -parameter <--[switch]

Marco

--
Microsoft MVP - Windows PowerShell
http://www.microsoft.com/mvp

PowerGadgets MVP
http://www.powergadgets.com/mvp

Blog:
http://marcoshaw.blogspot.com

> I've never seen anyone try using [bool]. What are you trying to Thank you very much, indeed, but I was not asking for a workaround. I was
looking for potential bugs hoping that it may help to make them found and
fixed.

I will hardly ever use [bool] parameter, but if this is a bug then its
origins may affect something else, much more serious, but not yet
discovered.

--
Thanks,
Roman Kuzmin

http://code.google.com/p/farnet/
PowerShell and .NET in FAR Manager

True. It has brought up some interesting points in a private list I'm
on. I'm not going to share them right now though (and haven't asked
permission to do so either).

I may try it in C# (with a real cmdlet) just to see how it works that way.

Marco

Marco Shaw [MVP] wrote: I don't have any updates. I've not gotten around to trying to figure
out how to write this in C# as a real cmdlet...

--
Microsoft MVP - Windows PowerShell
http://www.microsoft.com/mvp

PowerGadgets MVP
http://www.powergadgets.com/mvp

Blog:
http://marcoshaw.blogspot.com