WMI查询 - 使用并非所有操作系统都可用的属性

Question

Propery Win32_OperatingSystem\OSArchitecture在Windows 7上可用，但在Windows XP上不可用。我使用WMI代码生成器进行了检查。我应该如何更改下面的代码才能在两个操作系统上运行（Win XP和Win 7）？

ObjectQuery objectQuery = new ObjectQuery("SELECT OSArchitecture FROM Win32_OperatingSystem"); 
ManagementObjectSearcher searcher = new ManagementObjectSearcher(objectQuery); 
if (searcher.Get().Count == 0) // this line throw exception on Windows XP 
    return null; 

我知道我可以捕获该异常，但我要寻找一个更好的解决方案

Answer 1

这个工作对我来说：

string strOSArchitecture = ""; 
ObjectQuery objectQuery = new ObjectQuery("SELECT * FROM Win32_OperatingSystem"); 
ManagementObjectSearcher searcher = new ManagementObjectSearcher(objectQuery); 
ManagementObjectCollection results = searcher.Get(); 

foreach (ManagementObject result in results) 
{ 
    foreach (PropertyData property in result.Properties) 
    { 
     else if (property.Name.Equals("OSArchitecture")) 
     { 
     strOSArchitecture = result["OSArchitecture"].ToString(); 
     } 
    } 
}