Powershell[validateSet()]在使用相同参数名的单独参数集之间

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。

这大部分工作都很好，但是，我的问题是：

get-help new-secondaryAccount的输出在语法部分给出了以下内容：

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>]

从外观上看，这正是我想要的--一个参数集，我可以在其中验证几个不同的-AccountType列表，并在其中移动，我有密码、描述等；另一个参数集，我只验证AccountType的一个值，并有一个只属于TestAccountOnly参数集的CoreorReserve参数。

不幸的是，在ISE中尝试测试时，如果输入：

new-SecondaryAccount-Name MehSomeAccount-AccountType，我从IntelliSense得到的唯一建议是test。

您能不能不要像我尝试的那样使用[validateSet()]，还是我做错了？

如果有人能指出这一点，我会非常感激的！

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validate set属性，这也是它的指定是分开的一个原因。

您可能可以使用动态参数来获得您想要的。为了清楚起见，我去掉了很多东西。

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 #>
    }
}