PowerShell C#WMI为InvokeMethod正确填充输入对象

我在将PowerShell脚本翻译为C#时遇到问题

我正在关注这篇文章，并试图将示例PowerShell重写为C#。。更准确地说，我在正确地将Get-NdisObjectHeader、Get-NdisWmiHeader转换为inParams时遇到了一个问题。首先是PS代码，然后是我在C#中的失败代码

PowerShell：

$Adapters =  Get-WmiObject -Namespace root\wmi -Class` MSNdis_ReceiveScaleCapabilities;

## $Adapters[4];
## under 4.element I’ve got my desired adapter InstanceName: „Adapter 0”

function Get-NdisObjectHeader 
{ 
    param( 
        $revision = 1, 
        $type     = 0x02, 
        $size     = 0xffff 
    ) 
    $hdr = ([wmiclass]'root\wmi:MSNdis_ObjectHeader').CreateInstance() 
    $hdr.Revision      = $revision 
    $hdr.Type          = $type 
    $hdr.Size          = $size 
    return $hdr 
}

function Get-NdisWmiHeader 
{ 
    param($timeout = 5) 
    $whdr = ([wmiclass]'root\wmi:MSNdis_WmiMethodHeader').CreateInstance() 
    $whdr.Header       = Get-NdisObjectHeader 
    $whdr.PortNumber   = 0 
    $whdr.NetLuid      = 0 
    $whdr.Padding      = 0 
    $whdr.RequestId    = 0 
    $whdr.Timeout      = $timeout 
    return $whdr 
}

$whdr = Get-NdisWmiHeader;
$outParams = $Adapters[4].WmiQueryReceiveScaleCapabilities($whdr);

C#

谢谢你的帮助。

---

Bob

您的PowerShell代码可以翻译为：

ManagementBaseObject hdr = new ManagementClass("root\\wmi:MSNdis_ObjectHeader").CreateInstance();

hdr["Revision"] = 1;
hdr["Type"] = 0x02;
hdr["Size"] = 0xffff;

ManagementBaseObject whdr = new ManagementClass("root\\wmi:MSNdis_WmiMethodHeader").CreateInstance();

whdr["Header"] = hdr;
whdr["PortNumber"] = 0;
whdr["NetLuid"] = 0;
whdr["Padding"] = 0;
whdr["RequestId"] = 0;
whdr["Timeout"] = 5;

// Two lines bellow are taken from Bob's answer
ManagementBaseObject inParams = AdapterInstance.GetMethodParameters("WmiQueryReceiveScaleCapabilities");

inParams["Header"] = whdr;

ManagementBaseObject outParams = AdapterInstance.InvokeMethod("WmiQueryReceiveScaleCapabilities", inParams, null);

编辑：必须通过

ManagementClass.GetMethodParameters

创建

ManagementBaseObject

类型的实例以存储参数。并且此

ManagementBaseObject

必须传递给

InvokeMethod

。在PowerShell中，这是在调用方法时由

ManagementObjectAdapter

隐式完成的

---

我的失误被@bob0123发现。所以也请支持他的答案。

对于完全工作的代码，我在Yoh Deadfall版本中又添加了两行代码（感谢您的提示！）：

---

您遇到了什么异常？能否将完整异常（类型、消息、堆栈）添加到您的问题中？另外，至少在C#版本中，您似乎缺少一些代码，“inParams”是在哪里创建的？inParam->whdr-fixedin行：whdr[“Header”]=NDISWmiHeader；调试器停止程序并抛出“ManagementException was unhandled”（管理异常未处理）消息和视图详细信息..-{“类型不匹配”}有意义，但在最后一行：ManagementBaseObject outParams=AdapterInstance.InvokeMethod（“WmiQueryReceiveScaleCapabilities”，whdr，null）；我得到了未处理的管理异常：{“未找到”}（错误代码：System.Management.ManagementStatus.NotFound）。。我很困惑，因为这意味着我的AdapterInstance没有WmiQueryReceiveScaleCapabilities？，但在PowerShell上一切正常，嗯。。

ManagementBaseObject hdr = new ManagementClass("root\\wmi:MSNdis_ObjectHeader").CreateInstance();

hdr["Revision"] = 1;
hdr["Type"] = 0x02;
hdr["Size"] = 0xffff;

ManagementBaseObject whdr = new ManagementClass("root\\wmi:MSNdis_WmiMethodHeader").CreateInstance();

whdr["Header"] = hdr;
whdr["PortNumber"] = 0;
whdr["NetLuid"] = 0;
whdr["Padding"] = 0;
whdr["RequestId"] = 0;
whdr["Timeout"] = 5;

// Two lines bellow are taken from Bob's answer
ManagementBaseObject inParams = AdapterInstance.GetMethodParameters("WmiQueryReceiveScaleCapabilities");

inParams["Header"] = whdr;

ManagementBaseObject outParams = AdapterInstance.InvokeMethod("WmiQueryReceiveScaleCapabilities", inParams, null);

ManagementBaseObject hdr = new ManagementClass("root\\wmi:MSNdis_ObjectHeader").CreateInstance();
                    hdr["Revision"] = 1;
                    hdr["Type"] = 0x02;
                    hdr["Size"] = 0xffff;

ManagementBaseObject whdr = new ManagementClass("root\\wmi:MSNdis_WmiMethodHeader").CreateInstance();
                    whdr["Header"] = hdr;
                    whdr["PortNumber"] = 0;
                    whdr["NetLuid"] = 0;
                    whdr["Padding"] = 0;
                    whdr["RequestId"] = 0;
                    whdr["Timeout"] = 5;

ManagementBaseObject inParams =  AdapterInstance.GetMethodParameters("WmiQueryReceiveScaleCapabilities");
inParams["Header"] = whdr;

ManagementBaseObject outParams = AdapterInstance.InvokeMethod("WmiQueryReceiveScaleCapabilities", inParams, null);