functionTest-MrParameterValidation{ [CmdletBinding()]param( [Parameter(Mandatory)] [string[]]$ComputerName)Write-Output$ComputerName} 如果没有指定ComputerName参数,也许要为其指定一个默认值。 问题是,默认值不能与强制性参数一起使用。 取而代之的是使用带有默认值的ValidateNotNullOrEmpty参数验证属性。
You can use the optional [Parameter()] attribute alone or in combination with the [Alias()] attribute or any of the parameter validation attributes. Parameter names follow the rules for variable names. Parameter names consist of decimal digits, alphabetical characters, and underscores. ...
如果需要指定一个默认参数需要将ValidateNotNullOrEmpty参数验证属性与默认值一起使用,不过不能与必需(Mandatory)参数一起使用! functionTest-MrParameterValidation { [CmdletBinding()]param( [ValidateNotNullOrEmpty()] [string[]]$ComputerNmae="s1") Write-Output$ComputerNmae} 默认将输出s1 使用使用Write-Verbose...
+ CategoryInfo : InvalidData: (:) [Test-Path], ParameterBindingValidationException + FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.TestPathCom mand Test-Path : 无法将参数绑定到参数“Path”,因为该参数是空值。 所在位置 D:\Workshop\GitHub\cakebuildexam...
“”PowershellEN这是数据模板，一般用在数组的绑定，显示数组中的元素。 假如我们有一个列表，列表里是...
Function parameter validation, accept multiple variables types Function says "The term 'time' is not recognized as the name of a cmdlet, function, script file, or operable function to accept array from pipe Gather website data with PowerShell Generate a Random file, solution Ok but limited Gene...
This is a function namedGiveMeConnectionSource. It takes the connection string as a parameter. The function attempts to establish a connection to the database using a loop that allows for a maximum of 5 connection attempts. Inside the loop, it tries to open the S...
Set-ExternalInOutlook-Enabled$trueA parameter cannot be found that matches parameter name'Enabled' I've already made sure the module is installed/updated. After months of dealing with Microsoft support, they were unable to help me. I can successfully run the "Get-ExternalInOutloo...
Function parameter validation, accept multiple variables types Function says "The term 'time' is not recognized as the name of a cmdlet, function, script file, or operable function to accept array from pipe Gather website data with PowerShell Generate a Random file, solution Ok but limited Gene...
they can be referred to alternate. Validation attributes are added like the other parameter attributes, and they can allow us to validate data being passed into the cmdlet or to specify what the cmdlet does not permit for certain parameters. The validation attributes that are available to us ...