private void newSemesterBarButton_Click(object sender, EventArgs e)
{
textBox1.Text = textBox1.Text.Trim();
if (textBox1.Text == "")
{
MessageBox.Show("You haven't entered a name of the semester!");
return;
}
Semestar semester = new Semestar
{
NazivSemestra = textBox1.Text,
Pocetak = (DateTime)datePickerStart.Value,
Kraj = (DateTime)datePickerEnd.Value
};
App.ViewModel.AddSemester(semester);
if (NavigationService.CanGoBack)
{
NavigationService.GoBack();
}
App.ViewModel.CurrentSemester = semester;
}
// Remove a to-do task item from the database and collections.
public void DeleteSemesterItem(Semestar semesterForDelete)
{
ObservableCollection<Subject> marks = new ObservableCollection<Subject>();
foreach (Subject subject in AllSubjectItems)
{
if (semesterForDelete.OznakaSemestra == subject.OznakaSemestra)
{
marks.Add(subject);
}
}
foreach (Subject m in marks)
this.DeleteSubjectItem(m);
//studentusDB.SubmitChanges();
// Remove the to-do item from the "all" observable collection.
AllSemesterItems.Remove(semesterForDelete);
// Remove the to-do item from the data context.
studentusDB.Items.DeleteOnSubmit(semesterForDelete);
// Save changes to the database.
studentusDB.SubmitChanges();
}
// Add an object to the database and collections.
public void AddSemester(Semestar newSemesterItem)
{
// Add a to-do item to the data context.
studentusDB.Items.InsertOnSubmit(newSemesterItem);
// Add a to-do item to the "all" observable collection.
AllSemesterItems.Add(newSemesterItem);
// Save changes to the database.
studentusDB.SubmitChanges();
}
// Class constructor, create the data context object.
public StudentusViewModel(string StudentusDBConnectionString)
{
studentusDB = new StudentusDataContext(StudentusDBConnectionString);
CurrentSemester = new Semestar();
}
public Semestar FindCurrentSemester()
{
var semesters = from Semestar sem in studentusDB.Items
select sem;
DateTime today = DateTime.Now;
Semestar currentSemester = new Semestar();
foreach (Semestar s in semesters)
{
if (today >= s.Pocetak && today <= s.Kraj)
{
currentSemester = s;
break;
}
}
return currentSemester;
}
