public JsonResult Admin_hasname(string strid, string newname) { string oldname = ""; if (strid != "") { int id = int.Parse(strid); oldname = dbDrive.FindAdmin(id).name; } if (oldname.Equals(newname)) { return(Json(true)); } List <Admin> adminList = dbDrive.AccurateQueryAdmins(newname); if (adminList != null && adminList.Count > 0) { return(Json(false)); } return(Json(true)); }