public ActionResult Delete(string key)
{
SystemSetting systemSetting = _systemSettingService.GetSystemSetting(key);
if (systemSetting == null)
{
ErrorNotification("Không tìm thấy trang nào thỏa mãn");
return(RedirectToAction("Index"));
}
_systemSettingService.RemoveSystemSetting(systemSetting);
SuccessNotification("Xóa SystemSetting thành công");
return(RedirectToAction("Index"));
}