Question

在大多数情况下，对功能参数的期望是[wmiclass]。但是，我正在使用带有自定义类的自定义名称空间。当我使用Get-Member时，其类型显示为：

System.Management.ManagementClass#ROOT\namespace\class_name

如何将WMI类指定为变量类型？此示例不起作用：

param(
    [wmiclass#root\namespace\class_name]
    $Class
)

这将返回

Unable to find type [System.Management.ManagementClass#ROOT\namespace\class_name].

出于这个问题的目的，假设我要定位

ROOT\cimv2\Win32_Service

标记c#，因为它与切向相关，我很好奇这是否可以解决

Answer 1

你能做到吗？

param(
    [PsTypeName("System.Management.ManagementClass#ROOT\namespace\class_name")]
    $Class
)

测试案例：

function test {

param([psTypename("System.Management.ManagementClass#ROOT\cimv2\StdRegProv")]$mine)
$mine
}

$reg = [wmiclass]"\\.\root\cimv2:StdRegprov"
$reg | gm

   TypeName: System.Management.ManagementClass#ROOT\cimv2\StdRegProv

[wmiclass]$wmi = ""
$wmi | gm

   TypeName: System.Management.ManagementClass#\

test $wmi
test : Cannot bind argument to parameter 'mine', because PSTypeNames of the argument do not match the PSTypeName
required by the parameter: System.Management.ManagementClass#ROOT\cimv2\StdRegProv.
At line:1 char:6
+ test $wmi
+      ~~~~
    + CategoryInfo          : InvalidArgument: (:) [test], ParameterBindingArgumentTransformationException
    + FullyQualifiedErrorId : MismatchedPSTypeName,test

test $reg

   NameSpace: ROOT\cimv2

Name                                Methods              Properties
----                                -------              ----------
StdRegProv                          {CreateKey, Delet... {}

PowerShell V2测试：

function testv2 {

param([ValidateScript({($_ | Get-Member)[0].typename -eq 'System.Management.ManagementClass#ROOT\cimv2\StdRegProv'})]$mine)
$mine
}

testv2 $reg

   NameSpace: ROOT\cimv2

Name                                Methods              Properties
----                                -------              ----------
StdRegProv                          {CreateKey, Delet... {}

testv2 $wmi

testv2 : Cannot validate argument on parameter 'mine'. The "($_ | gm)[0].typename -eq 'System.Management.ManagementClas
s#ROOT\cimv2\StdRegProv'" validation script for the argument with value "" did not return true. Determine why the valid
ation script failed and then try the command again.
At line:1 char:7
+ testv2 <<<<  $wmi
    + CategoryInfo          : InvalidData: (:) [testv2], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationError,testv2

如何严格将变量键入为特定的WMI类？

1 个答案: