How do I call a Commandlet dynamically using PowerShell?

Question

I'm trying to use a commandlet (I'm using NavContainerHelper) dynamically.

My parameters are in a System.Collections.Generic.List with the type string:

$navContainerHelperParameters = New-Object 'System.Collections.Generic.List[string]'
$navContainerHelperParameters.Add("-accept_eula")

I already tried using the @ before the call of the commandlet: New-NavContainer @navContainerHelperParameters, but this did not work as expected.

What would be the best way to call a commandlet dynamically?

Take a look at Invoke-Command and the -Argumentlist option. — Paxz
– Paxz, Commented Jun 27, 2018 at 6:26
I don't think that Invoke-Command would help me with my problem. It seems that it would only be good if I'm using something like -containerName $containerName and $containerName is out of scope — user2261403
– user2261403, Commented Jun 27, 2018 at 6:38
Perhaps it's just me but I fail to see anything dynamic about calling a cmdlet with one switch parameter. Just run New-NavContainer -accept_eula. — Ansgar Wiechers
– Ansgar Wiechers, Commented Jun 27, 2018 at 14:19
@AnsgarWiechers that's just an example. In my script I have more parameters that are dynamically added — user2261403
– user2261403, Commented Jun 28, 2018 at 6:06
Next time please choose an example that actually demonstrates the problem you're facing. — Ansgar Wiechers
– Ansgar Wiechers, Commented Jun 28, 2018 at 7:00

halv · Accepted Answer · 2018-06-27 11:25:52Z

1

The best way is to use splatting, which requires the parameters to be set in a hashtable and then passed with @ infront of the variable name to the cmdlet. You can set the switch parameter by setting the value to $true.

$navContainerHelperParameters = @{}
[void]$navContainerHelperParameters.Add("accept_eula",$true)
New-NavContainer @navContainerHelperParameters

answered Jun 27, 2018 at 11:25

halv

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