protected void grdActivities_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
            try
            {
                using (DefaultConnectionAL conn = new DefaultConnectionAL())
                {
                    var user = HttpContext.Current.GetOwinContext().Authentication.User.Identity.GetUserId();

                    Int32 ActivityID = Convert.ToInt32(grdActivities.DataKeys[e.RowIndex].Values["id"]);

                    var activityItem = (from a in conn.activities
                                        where a.id == ActivityID
                                        select a).FirstOrDefault();
                    //save
                    conn.activities.Remove(activityItem);
                    conn.SaveChanges();

                    //redirect to updated departments page
                    GetActivities();
                }
            }
            catch (Exception e2)
            {
                Response.Redirect("~/error.aspx");
            }
        }
        protected void btnLog_Click(object sender, EventArgs e)
        {
            try
            {
                //connect
                using (DefaultConnectionAL conn = new DefaultConnectionAL())
                {
                    activity objA = new activity();

                    if (!String.IsNullOrEmpty(Request.QueryString["ActivityID"]))
                    {
                        int ActivityID = Convert.ToInt32(Request.QueryString["ActivityID"]);
                        objA = (from a in conn.activities
                                where a.id == ActivityID
                                select a).FirstOrDefault();

                        //Populate the activity from the input form
                        objA.activity_name = txtActivityName.Text;
                    }
                    else
                    {
                        //Populate the activity from the input form
                        objA.account_id    = HttpContext.Current.GetOwinContext().Authentication.User.Identity.GetUserId();
                        objA.activity_name = txtActivityName.Text;
                        objA.duration      = lblTimeHidden.Text;
                    }

                    if (String.IsNullOrEmpty(Request.QueryString["ActivityID"]))
                    {
                        //add
                        conn.activities.Add(objA);
                    }

                    conn.SaveChanges();
                    Response.Redirect("activitylog.aspx");
                }
            }
            catch (System.IO.IOException e3)
            {
                Server.Transfer("/error.aspx", true);
            }
        }