在C＃中找不到WMI碎片整理方法

Question

我试图使用WMI整理我的C：驱动器。

我正在运行Windows 7 Pro x64。

Console.WriteLine(SMARTManager.Instance.SMARTHDD.Defrag("C:", ref ERR)); 

功能：

public string Defrag(string a_DriveName, ref string ERR) 
{ 
    try 
    { 
     ManagementObject classInstance = 
      new ManagementObject("root\\CIMV2", 
      String.Format("Win32_Volume.DeviceID='{0}'", a_DriveName), 
      null); 

     // Obtain in-parameters for the method 
     ManagementBaseObject inParams = 
      classInstance.GetMethodParameters("Defrag"); 

     // Add the input parameters. 
     inParams["Force"] = true; 

     // Execute the method and obtain the return values. 
     ManagementBaseObject outParams = 
      classInstance.InvokeMethod("Defrag", inParams, null); 

     // List outParams 
     string callback = "Out parameters:\n" + "ReturnValue: " + outParams["ReturnValue"]; 
     return callback; 
    } 
    catch (ManagementException err) 
    { 
     ERR = "An error occurred while trying to execute the WMI method: " + err.Message; 
    } 

    return null; 
} 

我从WMI代码造物主这个代码，但是当我运行它，它会返回一个exeption说 “未找到”。

有没有其他人试过这个？

Answer 1

，因为你正在传递一个错误的对象路径ManagementObject构造这个错误造成的，一个的DeviceID貌似\\?\Volume{3a7a882b-8713-11e0-bfc8-806e6f6e6963}\，因此，要解决你的问题，你必须通过一个有效的DeviceID或修改代码以使用Win32_Volume的Name财产类。

支票使用Name属性，而不是

using System; 
using System.Collections.Generic; 
using System.Management; 
using System.Text; 

namespace GetWMI_Info 
{ 
    class Program 
    { 

     public static void Defrag(string a_DriveName) 
     { 

      try 
      { 

       string ComputerName = "localhost"; 
       ManagementScope Scope;     

       if (!ComputerName.Equals("localhost", StringComparison.OrdinalIgnoreCase)) 
       { 
        ConnectionOptions Conn = new ConnectionOptions(); 
        Conn.Username = ""; 
        Conn.Password = ""; 
        Conn.Authority = "ntlmdomain:DOMAIN"; 
        Scope = new ManagementScope(String.Format("\\\\{0}\\root\\CIMV2", ComputerName), Conn); 
       } 
       else 
        Scope = new ManagementScope(String.Format("\\\\{0}\\root\\CIMV2", ComputerName), null); 

       Scope.Connect(); 
       string WQL = String.Format("SELECT * FROM Win32_Volume Where Name='{0}'", a_DriveName); 
       ObjectQuery Query = new ObjectQuery(WQL); 
       ManagementObjectSearcher Searcher = new ManagementObjectSearcher(Scope, Query); 

       foreach (ManagementObject ClassInstance in Searcher.Get()) 
       { 
       ManagementBaseObject inParams = ClassInstance.GetMethodParameters("Defrag"); 
       ManagementBaseObject outParams= ClassInstance.InvokeMethod("Defrag", inParams ,null); 
       Console.WriteLine("{0,-35} {1,-40}","DefragAnalysis",outParams["DefragAnalysis"]); 
       Console.WriteLine("{0,-35} {1,-40}","ReturnValue",outParams["ReturnValue"]);     
       } 

      } 
      catch (Exception e) 
      { 
       Console.WriteLine(String.Format("Exception {0} Trace {1}",e.Message,e.StackTrace)); 
      } 



     } 


     static void Main(string[] args) 
     { 
      //the drive name must be escaped 
      Defrag("F:\\\\"); 
      Console.WriteLine("Press Enter to exit"); 
      Console.Read(); 
     } 

}