如何将树的所有叶子添加到C＃

Question

我目前正在编写一些代码，通过一些LDAP查询搜索Active Directory。我遇到了Principal类型的对象，这可能是GroupPrincipal或UserPrincipal。但是，如果它是GroupPrincipal，则它可能包含UserPrincipal类型的对象。我想将UserPrincipal类型的所有项目提取到列表中，以便我可以对它们执行其他一些过程。

我想可以使用树木完成，但我不确定如何。

这是我写的一个无效的代码，只有两个节点深度打印名称而不是将它们添加到列表中：

foreach (var principal in group.GetMembers())
{
    if (principal is UserPrincipal)
    {
        var uPrincipal = principal as UserPrincipal;
        Console.WriteLine("User: " + uPrincipal.Name);
    }
    else if (principal is GroupPrincipal)
    {
        var gPrincipal = principal as GroupPrincipal;
        Console.WriteLine("Group: " + gPrincipal.Name);
        foreach(var principalito in gPrincipal.GetMembers())
        {
            if (principalito is UserPrincipal)
            {
                var uPrincipalito = principalito as UserPrincipal;
                Console.WriteLine(">>User: " + uPrincipalito.Name);
            }
            else if(principalito is GroupPrincipal)
            {
                var gPrincipalito = principalito as GroupPrincipal;
                Console.WriteLine(">>Group: " + gPrincipalito.Name);
            }
        }
    }
}

Answer 1

试试这个：

public void getAllUserPrinicpals(ref List<UserPrincipal> principals, GroupPrincipal principal)
    {
        if (principal != null)
        {
            foreach (Principal princ in principal.GetMembers(true))
            {
                if (princ is UserPrincipal)
                    principals.Add((UserPrincipal)princ);
                else if (princ is GroupPrincipal)
                    getAllUserPrinicpals(ref principals, (GroupPrincipal)princ);
            }
        }
    }