// Create a new student with input from the user
private void NewStudent_Click(object sender, RoutedEventArgs e)
{
try
{
// Use the StudentDialog to get the details of the student from the user
StudentDialog sd = new StudentDialog();
// Display the form and get the details of the new student
if (sd.ShowDialog().Value)
{
// When the user closes the form, retrieve the details of the student from the form
// and use them to create a new Student object
Student newStudent = new Student();
newStudent.FirstName = sd.firstName.Text;
newStudent.LastName = sd.lastName.Text;
newStudent.Password = sd.password.Text;
// Generate the UserName property - lastname with the initial letter of the first name all converted to lowercase
newStudent.UserName = (newStudent.LastName + newStudent.FirstName.Substring(0, 1)).ToLower();
// Generate a unique ID for the user: Use the maximum StudentID in the Students collection and add 1
newStudent.StudentID = (from s in DataSource.Students
select s.StudentID).Max() + 1;
// Add the student to the Students collection
DataSource.Students.Add(newStudent);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error creating new student", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
public void OnAdd()
{
var studDialog = new StudentDialog();
studDialog.Show();
studDialog.Topmost = true;
}
void StudentDialog_KeyDown(object sender, KeyEventArgs e)
{
if (StudentDialog.IsOpen)
{
if (e.Key == Key.Enter)
{
StudentDialog.Focus();
SaveButton_Click(null, null);
}
else if (e.Key == Key.Escape)
{
CancelButton_Click(null, null);
}
}
}
// Create a new student with input from the user
private void NewStudent_Click(object sender, RoutedEventArgs e)
{
try
{
// Use the StudentDialog to get the details of the student from the user
StudentDialog sd = new StudentDialog();
// Display the form and get the details of the new student
if (sd.ShowDialog().Value)
{
// When the user closes the form, retrieve the details of the student from the form
// and use them to create a new Student object
Grades.DataModel.Student newStudent = new Grades.DataModel.Student();
newStudent.FirstName = sd.firstName.Text;
newStudent.LastName = sd.lastName.Text;
newStudent.User = new User();
if (!newStudent.User.SetPassword(Role.Student, sd.password.Text))
{
throw new Exception("Password must be at least 6 characters long. Student not created");
}
// Generate the UserName property - lastname with the initial letter of the first name all converted to lowercase
newStudent.User.UserName = (newStudent.LastName + newStudent.FirstName.Substring(0, 1)).ToLower();
// Generate a unique ID for the user
newStudent.UserId = Guid.NewGuid();
// Assign a value for the ImageName field
newStudent.ImageName = "No photo";
// Generate default values for remaining properties of user object
newStudent.User.ApplicationId = (from Grades.DataModel.User u in SessionContext.DBContext.Users select u.ApplicationId).FirstOrDefault();
newStudent.User.IsAnonymous = false;
newStudent.User.LastActivityDate = DateTime.Now;
newStudent.User.UserId = newStudent.UserId;
// Add the student to the Students collection
// TODO: Exercise 2: Task 2i: Use the AddToStudents method to add a new student
SessionContext.DBContext.AddToStudents(newStudent);
SessionContext.Save();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error creating new student", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
private void ButtonEdit_Click(object sender, RoutedEventArgs e)
{
Student studentEdit = studentGrd.SelectedItem as Student;
if (studentEdit == null)
{
return;
}
StudentDialog studentDialog = new StudentDialog(new Student(studentEdit))
{
Title = "Editar Funcionário"
};
if (studentDialog.ShowDialog() == true)
{
DbContextHelper.EditStudent(_db, studentDialog.Student);
}
}
