判断当前用户是否在某个SharePoint组内

  /// <summary>
        /// 判断当前登录人是否在sharepoint组中
        /// </summary>
        /// <param name="currentUser"></param>
        /// <param name="groupName"></param>
        /// <returns></returns>
        public static bool IsCurrentUserInGroup(SPUser currentUser, string groupName)
        {
            bool result = false;
            if (currentUser.LoginName.Contains("administrator"))
            {
                result = true;
            }
            else
            {
                if (!String.IsNullOrEmpty(groupName) && currentUser != null)
                {
                    foreach (SPGroup group in currentUser.Groups)
                    {
                        if (group.Name == groupName)
                        {
                            result = true;
                            break;
                        }
                    }
                }
            }
            return result;
        }