public ActionResult GetTabId(string oldTabId) { string newTabId = UriUtility.ConvertStringtoMD5(DateTime.Now.ToString()); if (!string.IsNullOrEmpty(oldTabId) && !newTabId.Equals(oldTabId)) { // Clone old session CacheUtil.CloneTabCache(oldTabId, newTabId); } return(Json(new { tabId = newTabId }, JsonRequestBehavior.AllowGet)); }