c# - "Invalid query"无明确原因的异常

Question

下一个 WMi 查询有什么问题？ (我收到“无效查询”管理异常)。

        const string deviceName = "04157DF42C9B1109";

        string wmiQuery = string.Format("SELECT * FROM Win32_USBControllerDevice WHERE Antecedent LIKE '%{0}%'", deviceName);

        ManagementObjectSearcher searcher = new ManagementObjectSearcher(wmiQuery);
        ManagementObjectCollection retObjectCollection = searcher.Get();

        foreach (ManagementObject retObject in retObjectCollection)
        {
            Console.WriteLine("[{0}]:{1}", retObject["Antecedent"], retObject["Dependent"]);
        }

Answer 1

我不知道如何修复原始错误，但可以使用以下方法作为解决方法:

string wmiQuery = string.Format("SELECT * FROM Win32_USBControllerDevice");
ManagementObjectSearcher searcher = new ManagementObjectSearcher(wmiQuery);
ManagementObjectCollection retObjectCollection = searcher.Get();

var retObjectList = retObjectCollection.Cast<ManagementObject>()
    .Where(m => ((string)m["Antecedent"]).Contains(deviceName))
    .ToList();

foreach (ManagementObject retObject in retObjectList)
{
    Console.WriteLine("[{0}]:{1}", retObject["Antecedent"], retObject["Dependent"]);
}

我注意到其他人也有同样的问题，有些人建议使用 ASSOCIATORS OF 语句(资源:https://superuser.com/questions/740564/wmi-query-based-on-antecedent-string)这是此处公认的答案，因此它可能也适合您。