WMI 查询以获取启用的用户帐户。我的 WHERE 子句有什么问题？

Question

我正在尝试获取本地计算机上未禁用用户帐户的列表，其中包含每个用户的 SID 值。我无法使用 DirectoryEntry 类进行这项工作，因为返回的用户在 ObjectSecurity 字段中都有 NULL。所以我尝试使用 ManagementObjectSearcher

SelectQuery sQuery = new SelectQuery("Win32_UserAccount"); );
var searcher = new ManagementObjectSearcher(sQuery);

返回的用户有我需要的信息，但是这个查询给了我禁用的帐户。我想添加一个 WHERE 子句来说明这一点，但我做错了。

我试过了

new SelectQuery("Win32_UserAccount WHERE NOT Disabled");
new SelectQuery("Win32_UserAccount WHERE Disabled='False'");
new SelectQuery("Win32_UserAccount WHERE Disabled=False");

所有这些都会导致异常。谁能告诉我这个词怎么写？

Answer 1

你没有正确使用SearchQuery；要指定条件，您必须提供 full 查询字符串，或者使用单独接受查询的 SearchQuery(String, String) 构造函数：

var query = new SelectQuery("SELECT * FROM Win32_UserAccount WHERE Disabled=False");
var searcher = new ManagementObjectSearcher(query);

或

var query = new SelectQuery("Win32_UserAccount", "Disabled=False");
var searcher = new ManagementObjectSearcher(query);

但是，您可以使用直接接受查询字符串的ManagementObjectSearcher(String) 构造函数来简化代码：

var searcher = new ManagementObjectSearcher("SELECT * FROM Win32_UserAccount WHERE Disabled=False");

Answer 2

• ManagementObjectSearcher 在我们的例子中根据指定查询检索管理对象集合SELECT * FROM Win32_UserAccount

• userSearcher.Get() ：调用指定的 WMI 查询并返回结果集合。

在引用中添加System.Management

static void Main(string[] args)
 {
    ManagementObjectSearcher usersSearcher = new ManagementObjectSearcher(@"SELECT * FROM Win32_UserAccount");
    ManagementObjectCollection users = usersSearcher.Get();

    var localUsers = users.Cast<ManagementObject>().Where(
        u => (bool)u["Disabled"] == false);

    foreach (ManagementObject user in localUsers)
    {
        Console.WriteLine("Account Type: " + user["AccountType"].ToString());               
        Console.WriteLine("Full Name: " + user["FullName"].ToString());
        Console.WriteLine("SID: " + user["SID"].ToString());
        Console.WriteLine("SID Type: " + user["SIDType"].ToString());
        Console.WriteLine("Status: " + user["Status"].ToString());
            Console.WriteLine("Disabled: " + user["Disabled"].ToString());
        Console.WriteLine("Domain: " + user["Domain"].ToString());
    }
 }

或

 static void Main(string[] args)
 {
    ManagementObjectSearcher usersSearcher = new ManagementObjectSearcher(@"SELECT * FROM Win32_UserAccount WHERE Disabled=False");
    ManagementObjectCollection users = usersSearcher.Get();


    foreach (ManagementObject user in users)
    {
        Console.WriteLine("Account Type: " + user["AccountType"].ToString());               
        Console.WriteLine("Full Name: " + user["FullName"].ToString());
        Console.WriteLine("SID: " + user["SID"].ToString());
        Console.WriteLine("SID Type: " + user["SIDType"].ToString());
        Console.WriteLine("Status: " + user["Status"].ToString());
            Console.WriteLine("Disabled: " + user["Disabled"].ToString());
        Console.WriteLine("Domain: " + user["Domain"].ToString());
    }
 }