// When the user presses a key, determine whether to add a new student to a class, remove a student from a class, or modify the details of a student
private void studentsList_KeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
{
// If the user pressed Enter, edit the details for the currently selected student
case Key.Enter: Student student = this.studentsList.SelectedItem as Student;
// Use the StudentsForm to display and edit the details of the student
StudentForm sf = new StudentForm();
// Set the title of the form and populate the fields on the form with the details of the student
sf.Title = "Edit Student Details";
sf.firstName.Text = student.FirstName;
sf.lastName.Text = student.LastName;
sf.dateOfBirth.Text = student.DateOfBirth.ToString("d"); // Format the date to omit the time element
// Display the form
if (sf.ShowDialog().Value)
{
// When the user closes the form, copy the details back to the student
student.FirstName = sf.firstName.Text;
student.LastName = sf.lastName.Text;
student.DateOfBirth = DateTime.Parse(sf.dateOfBirth.Text);
// Enable saving (changes are not made permanent until they are written back to the database)
saveChanges.IsEnabled = true;
}
break;
// If the user pressed Insert, add a new student
case Key.Insert:
// Use the StudentsForm to get the details of the student from the user
sf = new StudentForm();
// Set the title of the form to indicate which class the student will be added to (the class for the currently selected teacher)
sf.Title = "New Student for Class " + teacher.Class;
// Display the form and get the details of the new student
if (sf.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 = sf.firstName.Text;
newStudent.LastName = sf.lastName.Text;
newStudent.DateOfBirth = DateTime.Parse(sf.dateOfBirth.Text);
// Assign the new student to the current teacher
this.teacher.Students.Add(newStudent);
// Add the student to the list displayed on the form
this.studentsInfo.Add(newStudent);
// Enable saving (changes are not made permanent until they are written back to the database)
saveChanges.IsEnabled = true;
}
break;
}
}
// When the user presses a key, determine whether to add a new student to a class, remove a student from a class, or modify the details of a student
private void studentsList_KeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
{
// If the user pressed Enter, edit the details for the currently selected student
case Key.Enter: Student student = this.studentsList.SelectedItem as Student;
// Use the StudentsForm to display and edit the details of the student
StudentForm sf = new StudentForm();
// Set the title of the form and populate the fields on the form with the details of the student
sf.Title = "Edit Student Details";
sf.firstName.Text = student.FirstName;
sf.lastName.Text = student.LastName;
sf.dateOfBirth.Text = student.DateOfBirth.ToString("d"); // Format the date to omit the time element
// Display the form
if (sf.ShowDialog().Value)
{
// When the user closes the form, copy the details back to the student
student.FirstName = sf.firstName.Text;
student.LastName = sf.lastName.Text;
student.DateOfBirth = DateTime.Parse(sf.dateOfBirth.Text);
// Enable saving (changes are not made permanent until they are written back to the database)
saveChanges.IsEnabled = true;
}
break;
}
}
// When the user presses a key, determine whether to add a new student to a class, remove a student from a class, or modify the details of a student
private void studentsList_KeyDown(object sender, KeyEventArgs e)
{
Student student;
StudentForm sf = new StudentForm();
switch(e.Key)
{
case Key.Enter: // TODO: Exercise 1: Task 1a: If the user pressed Enter, edit the details for the currently selected student
student = this.studentsList.SelectedItem as Student;
sf.Title = "Edit Student Details";
sf.firstName.Text = student.FirstName;
sf.lastName.Text = student.LastName;
sf.dateOfBirth.Text = student.DateOfBirth.ToString("d");
if(sf.ShowDialog().Value)
{
student.FirstName = sf.firstName.Text;
student.FirstName = sf.lastName.Text;
sf.dateOfBirth.Text = student.DateOfBirth.ToString("d");
saveChanges.IsEnabled = true;
}
break;
case Key.Insert:
student = new Student();
break;
case Key.Delete:
student = this.studentsList.SelectedItem as Student;
break;
// TODO: Exercise 1: Task 2a: Use the StudentsForm to display and edit the details of the student
// TODO: Exercise 1: Task 2b: Set the title of the form and populate the fields on the form with the details of the student
// TODO: Exercise 1: Task 3a: Display the form
// TODO: Exercise 1: Task 3b: When the user closes the form, copy the details back to the student
// TODO: Exercise 1: Task 3c: Enable saving (changes are not made permanent until they are written back to the database)
}
}
// When the user presses a key, determine whether to add a new student to a class, remove a student from a class, or modify the details of a student
private void studentsList_KeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
{
// If the user pressed Enter, edit the details for the currently selected student
case Key.Enter: Student student = this.studentsList.SelectedItem as Student;
// Use the StudentsForm to display and edit the details of the student
StudentForm sf = new StudentForm();
// Set the title of the form and populate the fields on the form with the details of the student
sf.Title = "Edit Student Details";
sf.firstName.Text = student.FirstName;
sf.lastName.Text = student.LastName;
sf.dateOfBirth.Text = student.DateOfBirth.ToString("d"); // Format the date to omit the time element
// Display the form
if (sf.ShowDialog().Value)
{
// When the user closes the form, copy the details back to the student
student.FirstName = sf.firstName.Text;
student.LastName = sf.lastName.Text;
student.DateOfBirth = DateTime.Parse(sf.dateOfBirth.Text);
// Enable saving (changes are not made permanent until they are written back to the database)
saveChanges.IsEnabled = true;
}
break;
// If the user pressed Insert, add a new student
case Key.Insert:
// Use the StudentsForm to get the details of the student from the user
sf = new StudentForm();
// Set the title of the form to indicate which class the student will be added to (the class for the currently selected teacher)
sf.Title = "New Student for Class " + teacher.Class;
// Display the form and get the details of the new student
if (sf.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 = sf.firstName.Text;
newStudent.LastName = sf.lastName.Text;
newStudent.DateOfBirth = DateTime.Parse(sf.dateOfBirth.Text);
// Assign the new student to the current teacher
this.teacher.Students.Add(newStudent);
// Add the student to the list displayed on the form
this.studentsInfo.Add(newStudent);
// Enable saving (changes are not made permanent until they are written back to the database)
saveChanges.IsEnabled = true;
}
break;
// If the user pressed Delete, remove the currently selected student
case Key.Delete: student = this.studentsList.SelectedItem as Student;
// Prompt the user to confirm that the student should be removed
MessageBoxResult response = MessageBox.Show(
String.Format("Remove {0}", student.FirstName + " " + student.LastName),
"Confirm", MessageBoxButton.YesNo, MessageBoxImage.Question,
MessageBoxResult.No);
// If the user clicked Yes, remove the student from the database
if (response == MessageBoxResult.Yes)
{
this.schoolContext.Students.DeleteObject(student);
// Enable saving (changes are not made permanent until they are written back to the database)
saveChanges.IsEnabled = true;
}
break;
}
}
// When the user presses a key, determine whether to add a new student to a class, remove a student from a class, or modify the details of a student
private void studentsList_KeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
{
// If the user pressed Enter, edit the details for the currently selected student
#region Enter Key Press
case Key.Enter: Student student = this.studentsList.SelectedItem as Student;
// Use the StudentsForm to display and edit the details of the student
StudentForm sf = new StudentForm();
// Set the title of the form and populate the fields on the form with the details of the student
sf.Title = "Edit Student Details";
sf.firstName.Text = student.FirstName;
sf.lastName.Text = student.LastName;
sf.dateOfBirth.Text = student.DateOfBirth.ToString("d"); // Format the date to omit the time element
// Display the form
if (sf.ShowDialog().Value)
{
// When the user closes the form, copy the details back to the student
student.FirstName = sf.firstName.Text;
student.LastName = sf.lastName.Text;
student.DateOfBirth = DateTime.Parse(sf.dateOfBirth.Text);
// Enable saving (changes are not made permanent until they are written back to the database)
saveChanges.IsEnabled = true;
}
break;
#endregion
// If the user pressed Insert, add a new student
#region Insert Key Press
case Key.Insert:
// Use the StudentsForm to get the details of the student from the user
sf = new StudentForm();
// Set the title of the form to indicate which class the student will be added to (the class for the currently selected teacher)
sf.Title = "New Student for Class " + teacher.Class;
// Display the form and get the details of the new student
if (sf.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 = sf.firstName.Text;
newStudent.LastName = sf.lastName.Text;
newStudent.DateOfBirth = DateTime.Parse(sf.dateOfBirth.Text);
// Assign the new student to the current teacher
this.teacher.Students.Add(newStudent);
// Add the student to the list displayed on the form
this.studentsInfo.Add(newStudent);
// Enable saving (changes are not made permanent until they are written back to the database)
saveChanges.IsEnabled = true;
}
break;
#endregion
// TODO: Exercise 3: Task 1a: If the user pressed Delete, remove the currently selected student
#region Delete Key Press
case Key.Delete:
student = studentsList.SelectedItem as Student;
// TODO: Exercise 3: Task 2a: Prompt the user to confirm that the student should be removed
MessageBoxResult resultMessageBox = MessageBox.Show(
string.Format($"Remove {student.FirstName} {student.LastName}"),
"Confirm", MessageBoxButton.YesNo, MessageBoxImage.Question, MessageBoxResult.No);
// TODO: Exercise 3: Task 3a: If the user clicked Yes, remove the student from the database
if (resultMessageBox == MessageBoxResult.Yes)
{
schoolContext.DeleteObject(student);
// TODO: Exercise 3: Task 3b: Enable saving (changes are not made permanent until they are written back to the database)
saveChanges.IsEnabled = true;
}
break;
#endregion
}
}
// When the user presses a key, determine whether to add a new student to a class, remove a student from a class, or modify the details of a student
private void studentsList_KeyDown(object sender, KeyEventArgs e)
{
// Use the StudentsForm to display and edit the details of the student
StudentForm sf = new StudentForm();
Student student = this.studentsList.SelectedItem as Student;
switch (e.Key)
{
// If the user pressed Enter, edit the details for the currently selected student
#region Key Enter Press
case Key.Enter:
// Set the title of the form and populate the fields on the form with the details of the student
sf.Title = "Edit Student Details";
sf.firstName.Text = student.FirstName;
sf.lastName.Text = student.LastName;
sf.dateOfBirth.Text = student.DateOfBirth.ToString("d"); // Format the date to omit the time element
// Display the form
if (sf.ShowDialog().Value)
{
// When the user closes the form, copy the details back to the student
student.FirstName = sf.firstName.Text;
student.LastName = sf.lastName.Text;
student.DateOfBirth = DateTime.Parse(sf.dateOfBirth.Text);
// Enable saving (changes are not made permanent until they are written back to the database)
saveChanges.IsEnabled = true;
}
break;
#endregion
#region Key Insert Press
case Key.Insert:
// TODO: Exercise 2: Task 1a: If the user pressed Insert, add a new student
// TODO: Exercise 2: Task 2a: Use the StudentsForm to get the details of the student from the user
sf = new StudentForm();
// TODO: Exercise 2: Task 2b: Set the title of the form to indicate which class the student will be added to (the class for the currently selected teacher)
sf.Title = "New Student for Class " + teacher.Class;
// TODO: Exercise 2: Task 3a: Display the form and get the details of the new student
if (sf.ShowDialog().Value)
// TODO: Exercise 2: Task 3b: 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 = sf.firstName.Text;
newstudent.LastName = sf.lastName.Text;
newstudent.DateOfBirth = DateTime.Parse(sf.dateOfBirth.Text);
// TODO: Exercise 2: Task 4a: Assign the new student to the current teacher
this.teacher.Students.Add(newstudent);
// TODO: Exercise 2: Task 4b: Add the student to the list displayed on the form
this.studentsInfo.Add(newstudent);
// TODO: Exercise 2: Task 4c: Enable saving (changes are not made permanent until they are written back to the database)
saveChanges.IsEnabled = true;
}
break;
#endregion
}
}