// Конструктор представления модели
public StudentListViewModel(StudentHostelContext context) : base(context)
{
GetData();
GetStudentsList();
if (StudentList != null)
{
CurrentStudent = null;
}
else if (StudentList.Count == 0)
{
CurrentStudent = null;
}
else
{
CurrentStudent = StudentList.First();
}
// Инициализация команд
AddCommand = new Command(Add, () => { return(!(IsAdding || IsEditing) && context != null); });
EditCommand = new Command(Edit, () => { return(!(IsAdding || IsEditing) && context != null); });
SaveCommand = new Command(SaveChanges, () => { return((IsAdding || IsEditing) && context != null); });
DeleteCommand = new Command(Delete, () => { return(!(IsAdding && !IsEditing) && context != null); });
CancelCommand = new Command(DiscardChanges, () => { return((IsAdding || IsEditing) && context != null); });
UpdateCommand = new Command(Update, () => { return(!(IsAdding || IsEditing) && context != null); });
FilterCommand = new Command(Filter, () => { return(IsBrowsing); });
CancelFilterCommand = new Command(CancelFilter, () => { return(IsBrowsing); });
}
private void StudentLogin(WSDESubVoterSelectRequest response)
{
if (response.SubVoterResult.Equals("login") && StudentList.Any(k => k.StudentNumber == response.SubVoterNumber))
{
StudentList.First(k => k.StudentNumber == response.SubVoterNumber).IsLogin = true;
}
}
private void init()
{
MessageSubscribeRelations.AddSubscribe(MessageType.WSDEDataEvent, new Relation()
{
CanUninstall = true,
IsActive = true,
IsKeep = false,
RelationDescribe = Title,
RelationGuid = this.StrGuid,
RelationAction = messageData =>
{
base.BindingPropInOtherTask(() =>
{
JavaScriptSerializer javaScriptSerializer = new JavaScriptSerializer();
var response = javaScriptSerializer.Deserialize <WSDESubVoterSelectRequest>(messageData.MessageData);
if (!Start)
{
StudentLogin(response);
return;
}
StudentLogin(response);
if (String.IsNullOrWhiteSpace(response.SubVoterResult) || response.SubVoterResult.Equals("login"))
{
return;
}
if (!StudentList.Any(k => k.StudentNumber == response.SubVoterNumber) && RefuseOutOfStudentList)
{
return;
}
response.SubVoterResult = response.SubVoterResult.Replace(".", "");
response.SubVoterResult = StringUtils.RemoveDuplicateCharacters(response.SubVoterResult);
var number = System.Convert.ToInt32(response.SubVoterSelectNumber);
examination.Add(response.SubVoterNumber, number, response.SubVoterResult);
if (QuestionList.Any(k => k.QuestionNumber == response.SubVoterSelectNumber))
{
QuestionList.First(k => k.QuestionNumber == response.SubVoterSelectNumber).Set(examination.ExaminationQuestions.First(k => k.QuestionNumber == number));
}
if (!StudentList.Any(k => k.StudentNumber == response.SubVoterNumber) && examination.Voters != null && examination.Voters.Count() > 0)
{
StudentVM studentNM = new StudentVM();
studentNM.Set(examination.Voters.First(k => k.VoterId == response.SubVoterNumber));
StudentList.Add(studentNM);
}
if (examination.Voters != null && examination.Voters.Count() > 0)
{
StudentList.First(k => k.StudentNumber == response.SubVoterNumber).Set(examination.Voters.First(k => k.VoterId == response.SubVoterNumber));
}
base.ViewChange();
});
},
});
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
_context.Teacher.Load(); // wczytanie nauczycieli, aby wyswietlac całe nazwy przedmiotow
SubjectList = _context.Subject.ToList(); // wczytanie przedmiotow
subjectBox.ItemsSource = SubjectList; // przypisanie przedmiotow do listboxa
StudentList = _context.Student.ToList(); // wczytanie uczniow
studentBox.ItemsSource = StudentList; // przypisanie uczniow do listboxa
if (Group != null) // jezeli dane sa do edycji
{
// wczytanie danych z GroupStudent tylko dla danej grupy
GroupStudentList = _context.GroupStudent.Where(gs => gs.GroupId == Group.Id).ToList();
// wczytanie danych z GroupSubject tylko dla danej grupy
GroupSubjectList = _context.GroupSubject.Where(gs => gs.GroupId == Group.Id).ToList();
// przypisanie nazwy grupy
name.Text = Group.Name;
OldGroupName = Group.Name;
// przypisanie listy uczniów
foreach (GroupStudent gs in GroupStudentList)
{
Student student = StudentList.First(s => s.Id == gs.StudentId);
studentList.Items.Add(student);
}
// przypisanie listy przedmiotów
foreach (GroupSubject gs in GroupSubjectList)
{
Subject subject = SubjectList.First(s => s.Id == gs.SubjectId);
subjectList.Items.Add(subject);
}
}
}
public Student FindByStudentByName(string studentName)
{
Student foundStudent = StudentList.First(singleStudent => singleStudent.FirstName == studentName);
return(foundStudent);
}
