AvoidDefaultValueForMandatoryParameter 發行項 2023/06/28 2 位參與者 意見反應 本文內容 描述 例如 嚴重性層級:警告 描述 強制參數不應該有預設值,因為沒有可使用預設值的案例。 如果未在呼叫 函式時指定參數值,PowerShell 就會提示輸入值。 例如 錯 PowerShell 複製 function Test { [CmdletBinding...
If this argument isn't specified, the parameter is optional.The following example declares the ComputerName parameter. It uses the Mandatory argument to make the parameter mandatory.PowerShell Copy param( [Parameter(Mandatory)] [string[]]$ComputerName ) ...
function Test-MrParameterValidation { [CmdletBinding()] param ( [Parameter(Mandatory)] [string]$ComputerName ) Write-Output $ComputerName } The syntax used in the previous example is PowerShell version 3.0 and higher compatible. [Parameter(Mandatory=$true)] could be specified instead to make th...
Note: A mandatory [switch] parameter is an edge case, given that switches are usually optional. However, mandatory [bool] parameters are affected as well, as are [hashtable]-and [scriptblock]-typed ones. The value entered by the user is ...
The first parameter, $computername, is fairly complex. It can accept one or more values on the parameter or from the pipeline. It only accepts values that are three to 30 characters long. You can use –host instead of –computername when running the function. This parameter is mandatory. ...
Use positional parameters and make parameters mandatory when it makes sense to do so. For example, I'm looking for something like the following: [Parameter(Position = 0, Mandatory = $True)] Don't use any aliases unless it makes sense for receiving pipeline input. They make code more diff...
private string _key = null; [Parameter( Mandatory=true, Position=1, ValueFromPipelineByPropertyName=true )] public string Key { get { return _key; } set { _key = value; } } private string _value = null; /// the value to store [Parameter( Mandatory=true, Position=2, ValueFrom...
, [parameter(mandatory=$true)][string[]] $Instances = @() ) Add-PSSnapin sqldmsnapin -ErrorAction:Stop; New-SQLdmDrive dm $Repository SQLdmRepository; Set-Location -Path dm:\ -ErrorAction:Stop; Set-SQLdmMonitoredInstance -Path (Escape-SQLdmName -Name $Instances) -MMAlwa...
Parameters : {[Parameter(Mandatory=$False)][switch]${All}, [Parameter(Mandatory=$False)][switch]${NoAllowMissingTemplateKeys}, [Parameter(Mandatory=$False)][System.String]${Containers}="*", [Parameter(Mandatory=$False)][switch]${WhatIf}…} ...
If we want to make the$FolderNameparameter mandatory in our cmdlet, we would modify it in the following fashion. function global:ADD-LOGFILE{ [CmdletBinding( DefaultParameterSetName=”Folder”, SupportsShouldProcess=$True, ConfirmImpact=’High’ ...