无法使用System.Management API或Power Shell从WMI类更新读/写属性 [英] Cannot update a Read/Write property from WMI class by using System.Management API or Power Shell
问题描述
大家好，
$
我尝试从MDM_Policy_Result01_Connectivity02类更新属性，名为
AllowBluetooth根据文档应该是读取/写入，但是当我这样做时，我收到了ReadOnly属性错误。
这些新的WMI类在Windows 10上可用，并提供给了
桥接设备的DM设置：
https://msdn.microsoft.com/en-us/library/dn905224(v=vs.85 ）.aspx
$
首先，我试图通过使用来自
a的System.Management命名空间来更新值常规桌面应用程序通过以下例程：
$
          ManagementScope范围=新的ManagementScope（"ROOT \\CIMV2 \\mdm \\dmmap"）;
              String strWQL =" SELECT * FROM MDM_Policy_Result01_Connectivity02";
              WqlObjectQuery query = new WqlObjectQuery（strWQL）;
              ManagementObjectSearcher searcher = new ManagementObjectSearcher（scope，query，null）;
              if（searcher.Get（）。Count> 0）
              {
                  foreach（searcher.Get（）中的ManagementObject实例）
                  {
                      foreach（PropertyData prop in instance.Properties）
                      {
                          MessageBox.Show（prop.Name +" =" + prop.Value）;
                          if（prop.Name ==" AllowBluetooth"）
                          {
                              prop.Value = 0;
                              PutOptions opt = new PutOptions（）;
                              opt.Type = PutType.UpdateOnly;
                              instance.Put（opt）;
                              MessageBox.Show（" Property updated successfully !!"）;
                          }¥b $ b                       }¥b $ b                   }¥b $ b               }
我还尝试使用PowerShell脚本：
$ mdmClass = Get-WmiObject -namespace root\CIMV2 \mdm \dmmap-Class MDM_Policy_Result01_Connectivity02 -Filter" InstanceID ='Connectivity'AND ParentID = './Vendor/MSFT/Policy/Result'"
$
写主机"在更新前允许蓝牙=" $ mdmClass.AllowBluetooth
$ putOpt = New-Object System.Management.PutOptions
$ putOpt。 Type = [System.Management.PutType] :: UpdateOnly
$ mdmClass.AllowBluetooth = 0
＃$ mdmClass.Put（）不起作用
$ mdmClass.Put（$ putOpt）
写主机"AllowBluetooth =更新后" $ mdmClass.AllowBluetooth
$
对于这两种情况我无法更新属性，但PowerShell输出错误显示更详细的信息
有关正在发生的信息：
" AllowBluetooth"是一个ReadOnly属性。
在C：\ Users \oliveira.SIDI \Documents\scripts\Untitled1.ps1：16 char：1
+ $ mdmClass.AllowBluetooth = 0
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo       ：NotSpecified：（:) []，SetValueException
  + FullyQualifiedErrorId：ReadOnlyWMIProperty
异常调用" Put"用"0"表示"0"。参数："对象或属性已存在"
$
在C：\ Users \oliveira.SIDI \ Documents \ _scripts \ Untitled1.ps1：20 char：1 < br $>
+ $ mdmClass.Put（）
+ ~~~~~~~~~~~~~~~~
&NBSP; + CategoryInfo &NBSP; &NBSP; &NBSP; ：NotSpecified：（:) []，MethodInvocationException
&NBSP; + FullyQualifiedErrorId：DotNetMethodException
$
您是否知道为什么不能更改此属性？ ？
$
$
您拥有的任何信息都会很棒！
Hi everyone,
I trying to update a property from MDM_Policy_Result01_Connectivity02 class called
AllowBluetooth that according documentation it's supposed to be read/write but I'm getting ReadOnly property error when I do it
These new WMI classes are available on Windows 10 and are provided to be the
bridge with DM settings from device:
https://msdn.microsoft.com/en-us/library/dn905224(v=vs.85).aspx
Firstly, I tried to update the value by using System.Management namespace from
a regular Desktop application through the routine below:
ManagementScope scope = new ManagementScope("ROOT\\CIMV2\\mdm\\dmmap");
String strWQL = "SELECT * FROM MDM_Policy_Result01_Connectivity02";
WqlObjectQuery query = new WqlObjectQuery(strWQL);
ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, query, null);
if (searcher.Get().Count > 0)
{
foreach (ManagementObject instance in searcher.Get())
{
foreach (PropertyData prop in instance.Properties)
{
MessageBox.Show(prop.Name + " = " + prop.Value);
if (prop.Name == "AllowBluetooth")
{
prop.Value = 0;
PutOptions opt = new PutOptions();
opt.Type = PutType.UpdateOnly;
instance.Put(opt);
MessageBox.Show("Property updated successfully!!");
}
}
}
}
And I also tried by using a PowerShell script:
$mdmClass = Get-WmiObject -namespace root\CIMV2\mdm\dmmap -Class MDM_Policy_Result01_Connectivity02 -Filter "InstanceID='Connectivity' AND ParentID='./Vendor/MSFT/Policy/Result'"
Write-Host "AllowBluetooth before update = " $mdmClass.AllowBluetooth
$putOpt = New-Object System.Management.PutOptions
$putOpt.Type = [System.Management.PutType]::UpdateOnly
$mdmClass.AllowBluetooth = 0
#$mdmClass.Put() does not work as well
$mdmClass.Put($putOpt)
Write-Host "AllowBluetooth = after update" $mdmClass.AllowBluetooth
For both cases I could not update the property, but PowerShell output error showed me more detailed
information about was happening:
"AllowBluetooth" is a ReadOnly property.
At C:\Users\oliveira.SIDI\Documents\scripts\Untitled1.ps1:16 char:1
+ $mdmClass.AllowBluetooth = 0
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], SetValueException
+ FullyQualifiedErrorId : ReadOnlyWMIProperty
Exception calling "Put" with "0" argument(s): "Object or property already exists "
At C:\Users\oliveira.SIDI\Documents\scripts\Untitled1.ps1:20 char:1
+ $mdmClass.Put()
+ ~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : DotNetMethodException
Do you have any idea about why it's not possible to change this property?
Any information you have would be great!
推荐答案
根据文档， MDM_Policy_Result01_Connectivity02 是只读的：
https://msdn.microsoft.com/en-us/library/windows/desktop/dn905253%28v=vs.85% 29.aspx 的。您可能需要
MDM_Policy_Config01_Connectivity02 。
According to documentation, MDM_Policy_Result01_Connectivity02 is read-only: https://msdn.microsoft.com/en-us/library/windows/desktop/dn905253%28v=vs.85%29.aspx. You probably need MDM_Policy_Config01_Connectivity02.
这篇关于无法使用System.Management API或Power Shell从WMI类更新读/写属性的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
