Question

我正在使用wmi调用以获取如下所示的信息

   var queryObj = new ObjectQuery("SELECT * FROM Win32_Processor");
            var vmSearcher = new ManagementObjectSearcher(queryObj);

        foreach (ManagementObject MO in vmSearcher.Get())
        {
            if (MO.GetType().GetProperty("AddressWidth") != null)
            {
                Value = MO["AddressWidth"].ToString();
            }

            //TRY TO FORCE TO NOT EXIST TO TEST..IS THIS THE WAY TO FORCE A 
            //PROPERTY OUT??
            MO["CurrentClockSpeed"] = null;

            if (MO.GetType().GetProperty("CurrentClockSpeed") != null)
            {
                Value2 = MO["CurrentClockSpeed"].ToString();
            }
         }

问题是某些机器具有某些属性，而另一些具有其他属性

如何检查计算机上是否存在属性？我的东西没用

我最终想要的是简单地打印出我选择的属性（例如代码示例中的on）（如果存在）

Answer 1

   public static object TryGetProperty(ManagementObject wmiObj, string propertyName)
        {
            object retval;
            try
            {
                retval = wmiObj.GetPropertyValue(propertyName);
            }
            catch (System.Management.ManagementException ex)
            {
                retval = null;
            }
            return retval;
        }

检查对象C＃是否存在属性

1 个答案: