WQL for REF屬性：PowerShell與C＃

Question

簡單的查詢在PowerShell中運行良好：

gwmi -Query "select * from Win32_DependentService where Antecedent='\\\\MYPC\\root\\cimv2:Win32_SystemDriver.Name=`"WdFilter`"'"

但它在C＃中不起作用：

var scope = new ManagementScope("\\\\MYPC\\Root\\Cimv2");
scope.Connect();
var searcher = new ManagementObjectSearcher(scope, new ObjectQuery("select * from Win32_DependentService where Antecedent = '\\\\MYPC\\root\\cimv2:Win32_SystemDriver.Name=\"WdFilter\"'"));
ManagementObjectCollection queryCollection = searcher.Get();
var count = queryCollection.Count; // "Invalid query" exception here!!!

C＃查詢有什么問題？ 謝謝！

Answer 1

固定！ 我們需要更多的反斜杠（最多八個！）。 正確的代碼是：

var scope = new ManagementScope("\\\\MYPC\\Root\\Cimv2");
var searcher = new ManagementObjectSearcher(scope, new ObjectQuery("select * from Win32_DependentService where Antecedent='\\\\\\\\MYPC\\\\root\\\\cimv2:Win32_SystemDriver.Name=\"WdFilter\"'"));
var queryCollection = searcher.Get();
var count = queryCollection.Count; // it's OK now

希望它對其他人有幫助:)