private void handleStudentDelete()
{
int index = studentsListBox.SelectedIndex;
if (index < students.Count && index != -1)
{
bool isLastIndex = index == studentsListBox.Items.Count - 1;
students.RemoveAt(index);
StudentIO.RemoveStudent(index);
if (isLastIndex)
{
index = index - 1;
}
}
if (studentsListBox.SelectedIndex != -1)
{
studentsListBox.SelectedIndex = index;
updateStudentDetails(index);
toggleStudentDetailsEdit(false);
}
else
{
idDisplayText.Clear();
nameDisplayText.Clear();
classDisplayText.Clear();
sectionDisplayText.Clear();
contactDisplayText.Clear();
addressDisplayText.Clear();
editStudentButton.Enabled = false;
}
idText.Text = StudentIO.NextId().ToString();
}
public MainWindow()
{
InitializeComponent();
students = new BindingList <Student>(StudentIO.LoadStudents());
ShowData();
idText.Text = StudentIO.NextId().ToString();
editStudentButton.Enabled = false;
}
private void handleLoadButtonClick()
{
toggleStudentDetailsEdit(false);
List <Student> loadedStudents = StudentIO.LoadStudents();
if (studentsListBox.Items.Count != loadedStudents.Count)
{
students = new BindingList <Student>(loadedStudents);
ShowData();
}
idText.Text = StudentIO.NextId().ToString();
}
private void saveStudentButton_Click(object sender, EventArgs e)
{
toggleStudentDetailsEdit(false);
updateStudentDetails(studentsListBox.SelectedIndex);
int _id = StudentIO.NextId();
string _name = nameText.Text;
string _class = classText.Text;
string _section = sectionText.Text;
string _contact = contactText.Text;
string _address = addressText.Text;
if (IsValid(_name) && IsValid(_class) && IsValid(_section) && IsValid(_contact) && IsValid(_address))
{
Student student = new Student(_id, _name, _class, _section, _contact, _address);
StudentIO.SaveStudent(student);
students.Add(student);
idText.Text = StudentIO.NextId().ToString();
}
else
{
MessageBox.Show(text: "Please enter all the details!", caption: "Invalid Input Error!", buttons: MessageBoxButtons.OK, icon: MessageBoxIcon.Error);
}
studentsListBox.SelectedIndex = studentsListBox.Items.Count - 1;
}