private void BtnAdd_Click(object sender, EventArgs e)
{
FrmAddStudents addForm = new FrmAddStudents();
Student s = addForm.GetNewStudent();
if (s != null)
{
students.Add(s);
StudentDB.SaveStudents(students);
FillStudentListBox();
}
}
private void BtnDelete_Click(object sender, EventArgs e)
{
int x = lstStudents.SelectedIndex;
if (x != -1)
{
Student student = students[x];
DialogResult result = MessageBox.Show("Are you sure you want to delete" + "\n" + student.StudentID + "\t" + student.StudentName, "Confirm Delete", MessageBoxButtons.OKCancel);
if (result == DialogResult.OK)
{
students.Remove(student);
StudentDB.SaveStudents(students);
FillStudentListBox();
}
}
}
private void BtnUpdate_Click(object sender, EventArgs e)
{
int x = lstStudents.SelectedIndex;
if (x != -1)
{
Student student = students[x];
FrmAddStudents updateForm = new FrmAddStudents();
student = updateForm.UpdateStudent(student);
if (student != null)
{
students[x].MidtermGrade = student.MidtermGrade;
students[x].FinalGrade = student.FinalGrade;
StudentDB.SaveStudents(students);
FillStudentListBox();
}
}
else
{
MessageBox.Show("Please select a student to update", "Error");
}
}