private void AddGrade_Click(object sender, RoutedEventArgs e)
{
// If the user is not a teacher, do nothing (the button should not appear anyway)
if (SessionContext.UserRole != Role.Teacher)
{
return;
}
try
{
// TODO: Exercise 2: Task 3a: Use the GradeDialog to get the details of the new grade.
// TODO: Exercise 2: Task 3b: Display the form and get the details of the new grade.
// TODO: Exercise 2: Task 3c: When the user closes the form, retrieve the details of the assessment grade from the form
// and use them to create a new Grade object.
// TODO: Exercise 2: Task 3d: Save the grade.
// TODO: Exercise 2: Task 3e: Refresh the display so that the new grade appears
GradeDialog gd = new GradeDialog();
if (gd.ShowDialog().Value)
{
Grades.DataModel.Grade newGrade = new Grades.DataModel.Grade();
newGrade.AssessmentDate = gd.assessmentDate.SelectedDate.Value;
newGrade.SubjectId = gd.subject.SelectedIndex;
newGrade.Assessment = gd.assessmentGrade.Text;
newGrade.Comments = gd.comments.Text;
newGrade.StudentUserId = SessionContext.CurrentStudent.UserId;
SessionContext.DBContext.Grades.Add(newGrade);
SessionContext.Save();
Refresh();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error adding assessment grade", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
// If the user clicks OK to save the Grade details, validate the information that the user has provided
private void ok_Click(object sender, RoutedEventArgs e)
{
// Data validation functionality to be added in Exercise 3
try
{
Grades.DataModel.Grade newGrade = new Grades.DataModel.Grade();
testGrade.ValidateAssessmentDate(assessmentDate.SelectedDate.Value);
testGrade.ValidateAssessmentGrade(assessmentGrade.Text);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error creating assessment", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
// Indicate that the data is valid
this.DialogResult = true;
}
// If the user clicks OK to save the Grade details, validate the information that the user has provided
private void ok_Click(object sender, RoutedEventArgs e)
{
// Create a Grade object and use it to trap and report any data validation exceptions that are thrown
try
{
Grades.DataModel.Grade testGrade = new Grades.DataModel.Grade();
object p = testGrade.ValidateAssessmentDate(assessmentDate.SelectedDate.Value);
testGrade.ValidateAssessmentGrade(assessmentGrade.Text);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error creating assessment", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
// Indicate that the data is valid
this.DialogResult = true;
}
