public static List <UserGroupInfo> GetUserGroupInfoList()
 {
     return(UserGroupManagerCache.GetAllUserGroups());
 }
        public static UserGroupInfo GetUserGroupInfo(int groupId)
        {
            var list = UserGroupManagerCache.GetAllUserGroups();

            return(list.FirstOrDefault(group => group.Id == groupId) ?? list[0]);
        }
        public static UserGroupInfo GetUserGroupInfo(string groupName)
        {
            var list = UserGroupManagerCache.GetAllUserGroups();

            return(list.FirstOrDefault(group => group.GroupName == groupName) ?? list[0]);
        }
        public static bool IsExists(string groupName)
        {
            var list = UserGroupManagerCache.GetAllUserGroups();

            return(list.Any(group => group.GroupName == groupName));
        }