Powershell [ValidateSet()] 在使用相同参数名称的单独参数集之间

Question

好的，所以我正在尝试编写一个高级函数，它使用两个不同的参数集名称，一个是Default另一个是TestAccountsOnly.

大部分工作正常，但是，这是我的问题：

的输出Get-Help New-SecondaryAccount在该部分中给了我这个SYNTAX：

SYNTAX
    New-SecondaryAccount [-Name] <String> [-AccountType] <String> [-Password] <String> [-Description] <String> [-OwnerEmployeeID] <String> 
    [[-AdditionalDescription]] [<CommonParameters>]

    New-SecondaryAccount [-Name] <String> [-AccountType] <String> [-Password] <String> [-CoreOrReserved] <String> [-Description] <String> 
    [-OwnerEmployeeID] <String> [[-AdditionalDescription]] [<CommonParameters>]

从表面上看，这正是我想要的 - 一个参数集，我可以在其中验证少数不同的列表-AccountTypes，并在我有密码、描述等的地方移动，而在另一个参数集中，我只验证一个值AccountType并且有一个CoreOrReserve只属于TestAccountsOnly参数集的参数。

不幸的是，当尝试在 ISE 中测试这一点时，如果我输入：

New-SecondaryAccount -Name mehSomeAccount -AccountType，我从 IntelliSense 得到的唯一建议是Test。

你能不能用[ValidateSet()]我想要的方式，或者我只是做错了？

如果有人能指出这一点，我将非常感激！

Function New-SecondaryAccount(DefaultParameterSetName="Default")
{
<#
.Synopsis
   Creates a new secondary account based on the parameters
.DESCRIPTION
    Creates a secondary AD user account based on parameters
    specified. This includes several different types of accounts,
    and determines the employeeType, OU, and description values
    of the account created.

    The CoreOrReserved parameter can only be used for accounts
    where AccountType is set to Test
.INPUTS
   [String]
.OUTPUTS
   [ADObject]
.NOTES

.COMPONENT
    MyModule_Part1
.FUNCTIONALITY
   Active Directory Things
#>
    [cmdletBinding(DefaultParameterSetName="Default")]
    param(
        [Parameter(Mandatory=$True,
                    Position=0,
                    ParameterSetName="Default",
                    ValueFromPipeline=$True,
                    ValueFromPipelineByPropertyName=$True)]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        [Parameter(Mandatory=$True,
                    Position=0,
                    ParameterSetName="TestAccountsOnly",
                    ValueFromPipeline=$True,
                    ValueFromPipelineByPropertyName=$True)]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        [String]$Name,

        [Parameter(Mandatory=$True,
                    Position=1,
                    ParameterSetName="Default")]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        [ValidateSet('ADAdmin','ServerAdmin','ServiceAccount','ChuckNorris')]
        [Parameter(Mandatory=$True,
                    Position=1,
                    ParameterSetName="TestAccountsOnly")]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        [ValidateSet("Test")]
        [String]$AccountType,

        [Parameter(Mandatory=$True,
                    Position=2,
                    ParameterSetName="Default")]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        [ValidateScript(
        {
            if($_.Length -ge 12)
            {
                $True
            }
            else
            {
                throw "Password must be at least 12 characters"
                $False
            }
        })]
        [Parameter(Mandatory=$True,
                    Position=3,
                    ParameterSetName="TestAccountsOnly")]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        [ValidateScript(
        {
            if($_.Length -ge 12)
            {
                $True
            }
            else
            {
                throw "Password must be at least 12 characters"
                $False
            }
        })]
        [String]$Password,

        [Parameter(Mandatory=$True,
                    Position=2,
                    ParameterSetName="TestAccountsOnly")]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        [ValidateSet("Core","Reserved")]
        [String]$CoreOrReserved,

        [Parameter(Mandatory=$True,
                    Position=3,
                    ParameterSetName="Default")]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        [ValidateScript(
        {
            if($_ -match "^TASK\d{7}\b")
            {
                $True
            }
            else
            {
                throw "Description must be a TASK number only`nEx. TASK1234567"
                $False
            }
        })]
        [Parameter(Mandatory=$True,
                    Position=4,
                    ParameterSetName="TestAccountsOnly")]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        [ValidateScript(
        {
            if($_ -match "^TASK\d{7}\b")
            {
                $True
            }
            else
            {
                throw "Description must be a TASK number only`nEx. TASK1234567"
                $False
            }
        })]
        [String]$Description,

        [Parameter(Mandatory=$True,
                    Position=4,
                    ParameterSetName="Default")]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        [ValidateScript(
        {
            if($(Get-ADUser -Filter {EmployeeID -eq $_ -and EmployeeType -eq "E"}) -ne $NULL)
            {
                $True
            }
            else
            {
                throw "$_ must correspond to a valid FTE user's employeeID number"
                $False
            }
        })]
        [Parameter(Mandatory=$True,
                    Position=5,
                    ParameterSetName="TestAccountsOnly")]
        [ValidateNotNull()]
        [ValidateNotNullOrEmpty()]
        [ValidateScript(
        {
            if($(Get-ADUser -Filter {EmployeeID -eq $_ -and EmployeeType -eq "E"}) -ne $NULL)
            {
                $True
            }
            else
            {
                throw "$_ must correspond to a valid FTE user's employeeID number"
                $False
            }
        })]
        [String]$OwnerEmployeeID,

        [Parameter(Mandatory=$False,
                    ParameterSetName="Default",
                    Position=5)]
        [Parameter(Mandatory=$False,
                    ParameterSetName="TestAccountsOnly",
                    Position=6)]
        [Switch]$AdditionalDescription

    )
    BEGIN{}
    PROCESS{# implementation doing all the things here}
    END{}

Answer 1

不幸的是，您不能为每个参数声明多个验证集属性，这是其指定是单独的原因之一。

您也许可以尝试使用动态参数来获得您想要的结果。为了清晰起见，我删除了很多东西。

function New-SecondaryAccount() {
    [cmdletBinding()]
    param (
        [Parameter(Mandatory,
            Position = 0,
            ValueFromPipeline,
            ValueFromPipelineByPropertyName)]
        [string] $Name,

        [Parameter(Mandatory, Position = 1)]
        [string] $Password,

        [Parameter(Position = 2)]
        [switch] $TestAccount
    )
    DynamicParam {
        $attribute = New-Object System.Management.Automation.ParameterAttribute
        $attribute.Mandatory = $true

        $collection = New-Object System.Collections.ObjectModel.Collection[System.Attribute]
        $collection.Add($attribute)

        if ($TestAccount) {
            $validationSet = @("Test")
        } else {
            $validationSet = @("ADAdmin", "ServerAdmin", "ServiceAccount", "ChuckNorris")
        }
        $collection.Add((New-Object System.Management.Automation.ValidateSetAttribute($validationSet)))  

        $param = New-Object System.Management.Automation.RuntimeDefinedParameter('AccountType', [string], $collection)
        $dictionary = New-Object System.Management.Automation.RuntimeDefinedParameterDictionary
        $dictionary.Add('AccountType', $param)  

        return $dictionary
    }

    PROCESS {
        <# implementation doing all the things here #>
    }
}