/// <summary>
/// Remove all the attached events and close the adorner and its control.
/// </summary>
private void AdornerClose()
{
if (_adorner != null)
{
_adorner.Control = null;
// remove adorner
_adornerLayer.Remove(_adorner);
_adornerLayer = null;
_adorner = null;
}
}
/// <summary>
/// This Handles the ScheduledAppointment event of the AppointmentDataGrid control. This event is triggered when an item selection is made.
/// This is XAML bound in Appointments.xaml
/// <customcontrols:AppointmentDataGrid ...customcontrols:AppointmentListView.ScheduledAppointment ="AppointmentDataGrid_ScheduledAppointment"...
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="args">The <see cref="ScheduledAppointmentEventArgs"/> instance containing the event data.</param>
private void AppointmentDataGrid_ScheduledAppointment(object sender, ScheduledAppointmentEventArgs args)
{
AdornerClose();
AppointmentDataGrid fe = (AppointmentDataGrid)sender;
((ICloseable)DataContext).RequestClose += Appointments_RequestClose;
// The appointmentKey comes directly from the selected listview element.
IVisit visit = (IVisit)args.appointmentKey;
// Must set the selected visit in the AppointmentEditor before the bindings of the adorner bind it to the DataGridAnnotationControl.
// RaiseCommand here causes the "Command" (defined below) of the Appointments.XAML to call the RelayCommand via the DoctorView.Xaml.
// The Command Target is SelectedVisit is the AppointmentEditor.cs.
RaiseVisitCommand(visit);
// Creation of the adorner will create the DatGridAnnotationControl and immediately create the bindings.
_adorner = new DataGridAnnotationAdorner(fe);
// put adorner into the adornerlayer.
InstallAdorner(fe, _adorner);
}