Create a new alert for a SharePoint list

public void CreateAlert(SPList list, SPUser alertUser, string alertTitle, bool notify)

        {

            OpenSite();

            try

            {

                SPWeb web = _site.AllWebs[list.ParentWebUrl];

                SPAlertCollection alerts = web.Alerts;

                // get the lists alert template and apply that to the new alert

                SPAlertTemplate alertTemplate = list.AlertTemplate;

                alertTemplate.Name = list.AlertTemplate.Name;

                // setup the alert

                SPAlert alert = alerts.Add();

                alert.AlertType = SPAlertType.List;

                alert.AlertTemplate = alertTemplate;

                alert.Title = alertTitle;

                alert.EventType = SPEventType.Add;

                alert.AlertFrequency = SPAlertFrequency.Immediate;

                // make sure to set this to false. Don’t know why but doesn’t seem to work if you don’t.

                alert.AlwaysNotify = false;

                alert.User = alertUser;

                alert.List = list;

                alert.Update(notify);

                // cleanup

                web.Close();

                web.Dispose();

            }

            catch

            {

                Console.WriteLine("Unable to create alert");

            }

            CloseSite();

        }