public string[] GetUsernameList(string prefixText, int count)
        {
            List <string> items = new List <string>();

            try
            {
                BaseUserControl           suc     = new BaseUserControl();
                List <UserManagementInfo> objList = UserManagementController.GetUsernameByPortalIDAuto(prefixText, 12, count, suc.GetUsername);
                foreach (UserManagementInfo objInfo in objList)
                {
                    items.Add(objInfo.UserName);
                }
                return(items.ToArray());
            }
            catch
            {
                return(items.ToArray());
            }
        }