protected override void ApplySettingsToEvent(Telerik.WinControls.UI.IEvent ev)
        {
            AppointmentWithEmail appointmentWithEmail = ev as AppointmentWithEmail;

            if (appointmentWithEmail != null)
            {
                appointmentWithEmail.Email = this.txtEmail.Text;
            }
            base.ApplySettingsToEvent(ev);
        }
        protected override void LoadSettingsFromEvent(Telerik.WinControls.UI.IEvent ev)
        {
            base.LoadSettingsFromEvent(ev);

            AppointmentWithEmail appointmentWithEmail = ev as AppointmentWithEmail;

            if (appointmentWithEmail != null)
            {
                this.txtEmail.Text = appointmentWithEmail.Email;
            }
        }