/// <summary>
/// Constructor
/// </summary>
/// <param name="sender">The sending queue for this class</param>
/// <param name="model">The PresenterModel for the network service</param>
/// <param name="role">The StudentModel for this network service</param>
public StudentNetworkService(SendingQueue sender, PresenterModel model, StudentModel role)
: base(sender, role)
{
this.m_Student = role;
this.m_Model = model;
// Instanciate the submission status service
submission_status_service_ = new SubmissionStatusNetworkService(this.Sender, role);
// Create a delegate that will update the local copy of the current
// presentation whenever it changes in the workspace.
//
// This causes the set{} accessor for CurrentPresentation to be run,
// which as a side effect disposes of and recreates all the network
// services associated with the student.
this.m_PresentationChangedDispatcher =
this.m_Model.Workspace.CurrentPresentation.ListenAndInitialize(sender,
delegate(Property<PresentationModel>.EventArgs args) {
if (args.New != null) {
this.CurrentPresentation = args.New;
}
});
}
protected override bool UpdateTarget(ReceiveContext context)
{
StudentModel role = this.Target as StudentModel;
if(role == null)
this.Target = role = new StudentModel(((Guid) this.TargetId));
base.UpdateTarget(context);
return true;
}
public StudentMessage(StudentModel role)
: base(role)
{
// Currently StudentModel has no published properties.
}