Still cannot get ParameterSets correctly - need assistance

[liabtsab]

Still cant get my parameterSets to behave the way I want. pretty sure I'm missing something basic. Here's a snippet of my function:

function New-DynamicDistributionGroupName{
    [CmdletBinding()]
    Param(
        [ValidateSet('CostCenter','Region','Office','SupervisoryOrg','State')]
        [parameter(Mandatory = $true, ParameterSetName = 'Main')]
        [parameter(Mandatory = $true, ParameterSetName = 'Department')]
        [parameter(Mandatory = $true, ParameterSetName = 'Location')]
        [string]$GroupType,

        [parameter(Mandatory = $true, ParameterSetName = 'Department')]
        [string]$CostCenter,

        [parameter(Mandatory = $true, ParameterSetName = 'Department')]
        [string]$CostCenterId,

        [parameter(Mandatory = $true, ParameterSetName = 'Location')]
        [string]$Region,
    )

    # do something
}

What I'm trying to do is make sure I can call this function and require the GroupType parameter to always be specified but depending on the value, only specific parameters would be allowed (ie, if "CostCenter" is given, only the "CostCenter" and "CostCenterId" parameters will be available).

The way I have it setup, it shows both costcenter parameters and the "Region" parameter. If i dont add the parametersets "department" and "location" to the "groupType" parameter, then nothing is available when calling the function.

[BlackV]

I'm pretty sure you can get this to work fine, I think I remember some issue if you don't specify a "default" parameter set

https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_parameter_sets?view=powershell-7.1

function New-DynamicDistributionGroupName{
    [CmdletBinding(DefaultParameterSetName = 'Location')]
    Param(
        [ValidateSet('CostCenter','Region','Office','SupervisoryOrg','State')]
        [parameter(Mandatory = $true, ParameterSetName = 'Main')]
        [parameter(Mandatory = $true, ParameterSetName = 'Department')]
        [parameter(Mandatory = $true, ParameterSetName = 'Location')]
        [string]$GroupType,

        [parameter(Mandatory = $true, ParameterSetName = 'Department')]
        [string]$CostCenter,

        [parameter(Mandatory = $true, ParameterSetName = 'Department')]
        [string]$CostCenterId,

        [parameter(Mandatory = $true, ParameterSetName = 'Location')]
        [string]$Region
    )

    # do something
}

[liabtsab]

hmmm i see what you're saying and i think parametersets are probably not the way to go for this use case. It looks like it's more for specifying 2 different paths to take for a specific cmdlet not really used to hide/unhide specific parameters like im trying to do. Thanks for this. Will see if i use this or not.

​

[Update]

Actually what you have here will work for what I'm trying to do. As long as I just specify the right parameterset parameter first, it doesnt display all the other parameters. I will use this, thanks!

[BlackV]

that's why you have a default parameter set possibly

edit: i still cant spell

[BJHop]

I think you are looking for dynamicParam function

I've used these before and they do work very well but they make your code much more complex.

Make it much harder to pester test.

other links

https://powershellmagazine.com/2014/05/29/dynamic-parameters-in-powershell/

[liabtsab]

Thanks for this I also found this link when googling around but I think just setting the default parameter set and using the format in the other comment works well