C# Windows帐户和目录添加用户权限方法

        
    /// <summary>
    /// 目录权限
    /// </summary>
    public enum FloderRights
    {
        FullControl,
        Read,
        Write
    }

        /// <summary>
        /// 创建Windows帐户
        /// </summary>
        /// <param name="pathname"></param>
        /// <returns></returns>
        public static void CreateLocalUser(string username, string password, string description)
        {
            DirectoryEntry dirEntry = new DirectoryEntry("WinNT://" + Environment.MachineName + ",computer");
            var NewUser = dirEntry.Children.Add(username, "user");
            NewUser.Invoke("SetPassword", new object[] { password });
            NewUser.Invoke("Put", new object[] { "Description", description });
            NewUser.CommitChanges();
        }


        /// <summary>
        /// 更改Windows帐户密码
        /// </summary>
        /// <param name="username"></param>
        /// <param name="oldPwd"></param>
        /// <param name="newPwd"></param>
        public static void ChangeWinUserPasswd(string username, string oldPwd, string newPwd)
        {
            DirectoryEntry dirEntry = new DirectoryEntry("WinNT://" + Environment.MachineName + ",computer");
            DirectoryEntry userEntry = dirEntry.Children.Find(username, "user");
            object[] password = new object[] { newPwd, oldPwd };
            object ret = userEntry.Invoke("ChangePassword", password);
            userEntry.CommitChanges();
        }

        /// <summary>
        /// 给目录添加用户和权限
        /// </summary>
        /// <param name="pathname"></param>
        /// <param name="username"></param>
        /// <param name="qx"></param>
        public static void AddPathRights(string pathname, string username, FloderRights qx)
        {
            DirectoryInfo dirinfo = new DirectoryInfo(pathname);
            if ((dirinfo.Attributes & FileAttributes.ReadOnly) != 0)
            {
                dirinfo.Attributes = FileAttributes.Normal;
            }
            //取得访问控制列表
            DirectorySecurity dirsecurity = dirinfo.GetAccessControl();
            // string strDomain = Dns.GetHostName();
            switch (qx)
            {
                case FloderRights.FullControl:
                    dirsecurity.AddAccessRule(new FileSystemAccessRule(username, FileSystemRights.FullControl, AccessControlType.Allow));
                    break;
                case FloderRights.Read:
                    dirsecurity.AddAccessRule(new FileSystemAccessRule(username, FileSystemRights.Read, AccessControlType.Allow));
                    break;
                case FloderRights.Write:
                    dirsecurity.AddAccessRule(new FileSystemAccessRule(username, FileSystemRights.Write, AccessControlType.Allow));
                    break;
                default:
                    dirsecurity.AddAccessRule(new FileSystemAccessRule(username, FileSystemRights.FullControl, AccessControlType.Deny));
                    break;
            }

            dirinfo.SetAccessControl(dirsecurity);

            //取消目录从父继承
            DirectorySecurity dirSecurity = System.IO.Directory.GetAccessControl(pathname);
            dirSecurity.SetAccessRuleProtection(true, false);
            System.IO.Directory.SetAccessControl(pathname, dirSecurity);

            //AccessControlType.Allow允许访问受保护对象//Deny拒绝访问受保护对象
            //FullControl、Read 和 Write 完全控制,读,写
            //FileSystemRights.Write写入//Delete删除 //DeleteSubdirectoriesAndFiles删除文件夹和文件//ListDirectory读取
            //Modify读写删除-修改//只读打开文件和复制//
        }

        /// <summary>
        /// 判断Windows用户是否存在
        /// </summary>
        /// <param name="username"></param>
        /// <returns></returns>
        public static bool ExistWinUser(string username)
        {
            try
            {
                using (DirectoryEntry dirEntry = new DirectoryEntry("WinNT://" + Environment.MachineName + ",computer"))
                {
                    //删除存在用户
                    var delUser = dirEntry.Children.Find(username, "user");
                    return delUser != null;
                }
            }
            catch
            {
                return false;
            }
        }

        /// <summary>
        /// 删除Windows用户
        /// </summary>
        /// <param name="username"></param>
        /// <returns></returns>
        public static bool DeleteWinUser(string username)
        {
            try
            {
                using (DirectoryEntry dirEntry = new DirectoryEntry("WinNT://" + Environment.MachineName + ",computer"))
                {
                    //删除存在用户
                    var delUser = dirEntry.Children.Find(username, "user");
                    if (delUser != null)
                    {
                        dirEntry.Children.Remove(delUser);
                    }
                }
                return true;
            }
            catch
            {
                return false;
            }
        }