C#学习笔记-域用户认证（一）

        public Boolean ValidateDomainUser(string Domain, string UserName, string Password)
        {
            DirectoryEntry entry = new DirectoryEntry(Domain, UserName, Password);
            try
            {
                string objectSid = (new SecurityIdentifier((byte[])entry.Properties["objectSid"].Value, ).Value);//如果账号不对则会抛出异常
                return true;
            }
            catch
            {
                return false;
            }
            finally
            {
                entry.Dispose();
            }
        }

//代码调用，LDAP一定要大写。
MessageBox.Show(ValidateDomainUser("LDAP://域控的IP地址/DC=ha-ad,DC=net", "evan", "evan的密码").ToString());