使用 ManagementObject 检索单个 WMI 属性

发布于 2024-08-30 16:27:03 字数 851 浏览 1 评论 0原文

这可能不是最好的方法，但我目前正在使用以下方法检索机器上的 RAM 量：

manageObjSearch.Query = new ObjectQuery("SELECT TotalVisibleMemorySize FROM Win32_OperatingSystem");
manageObjCol = manageObjSearch.Get();

foreach (ManagementObject mo in manageObjCol)
 sizeInKilobytes = Convert.ToInt64(mo["TotalVisibleMemorySize"]);

它工作得很好，但我觉得我可以更直接地执行此操作，并且无需对单个元素进行 foreach，但我无法弄清楚如何索引 ManagementObjectCollection

我想要做这样的事情：

ManagementObject mo = new ManagementObject("Win32_OperatingSystem.TotalVisibleMemorySize")
mo.Get();

Console.WriteLine(mo["TotalVisibleMemorySize"].ToString())

或者甚至可能是

ManagementClass mc = new ManagementClass("Win32_OperatingSystem");
Console.WriteLine(mc.GetPropertyValue("TotalVisibleMemorySize").ToString());

我似乎无法弄清楚的事情。有什么想法吗？

原文

This probably isn't the best way, but I am currently retrieving the amount of RAM on a machine using:

manageObjSearch.Query = new ObjectQuery("SELECT TotalVisibleMemorySize FROM Win32_OperatingSystem");
manageObjCol = manageObjSearch.Get();

foreach (ManagementObject mo in manageObjCol)
 sizeInKilobytes = Convert.ToInt64(mo["TotalVisibleMemorySize"]);

It works well and good, but I feel I could be doing this more directly and without a foreach over a single element, but I can't figure out how to index a ManagementObjectCollection

I want to do something like this:

ManagementObject mo = new ManagementObject("Win32_OperatingSystem.TotalVisibleMemorySize")
mo.Get();

Console.WriteLine(mo["TotalVisibleMemorySize"].ToString())

or maybe even something like

ManagementClass mc = new ManagementClass("Win32_OperatingSystem");
Console.WriteLine(mc.GetPropertyValue("TotalVisibleMemorySize").ToString());

I just can't seem to figure it out. Any ideas?

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淡淡的优雅 2024-09-06 16:27:03

foreach 语句隐藏了您需要访问的枚举器。你可以直接这样做：

        var enu = manageObjSearch.Get().GetEnumerator();
        if (!enu.MoveNext()) throw new Exception("Unexpected WMI query failure");
        long sizeInKilobytes = Convert.ToInt64(enu.Current["TotalVisibleMemorySize"]);

The foreach statement is hiding the enumerator you need to access. You can do it directly like this:

        var enu = manageObjSearch.Get().GetEnumerator();
        if (!enu.MoveNext()) throw new Exception("Unexpected WMI query failure");
        long sizeInKilobytes = Convert.ToInt64(enu.Current["TotalVisibleMemorySize"]);

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