// Search Button Event.
// Summary: Handles the Search Button Event.
// Displaying a filtered list of Students or Lecturers based on
// the key typed in the search text box by the user.
private void btnIconSearch_Click(object sender, EventArgs e)
{
if (dgvStudent.Visible)
{
try
{
dgvStudent.DataSource = FormsMethods.FilterList(AddStudent.EnrolledStudents, txtSearch.Text);
}
catch (ArgumentException ex)
{
MessageBox.Show(ex.Message, "Information",
MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
else if (dgvLecturer.Visible)
{
try
{
dgvLecturer.DataSource = FormsMethods.FilterList(AddLecturers.ListOfLecturers, txtSearch.Text);
}
catch (ArgumentException ex)
{
MessageBox.Show(ex.Message, "Information",
MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
// Add Button Event
// Try to initialize a new student acquiring all the properties from the user entries.
// Then Add this new Student to the List<Student> of all Enrolled Students.
// Catch four kind of main Exceptions that the user might enter while typing students properties.
private void btnAddStud_Click(object sender, EventArgs e)
{
try
{
Student newStudent = new Student(txtFirst.Text,
txtSurname.Text,
txtAddress.Text,
txtCity.Text,
txtCountry.Text,
txtPPS.Text,
txtPhone.Text,
txtEmail.Text,
(Status)(cmbStatus.SelectedIndex),
int.Parse(txtId.Text),
txtDegree.Text);
FormsMethods.AddRecordToList(EnrolledStudents, newStudent);
this.Close();
}
catch (ArgumentNullException ex)
{
MessageBox.Show("All the fields need to be completed. " + ex.Message,
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (ArgumentOutOfRangeException ex)
{
MessageBox.Show("Field values are not valid. " + ex.Message,
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (ArgumentException ex)
{
MessageBox.Show(ex.Message, "Information",
MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (FormatException ex)
{
MessageBox.Show("Impossible store data. " + ex.Message, "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
// Add Button Event
// Try to initialize a new Lecturer object with all properties getting from user entries.
// Catch some major Exceptions and then Add the new object to the List<Lecturer> if it
// doesn't throw any exceptions.
private void btnAddLect_Click(object sender, EventArgs e)
{
try
{
Lecturer newLecturer = new Lecturer(txtFirst.Text,
txtSurname.Text,
txtAddress.Text,
txtCity.Text,
txtCountry.Text,
txtPPS.Text,
txtPhone.Text,
txtEMail.Text,
int.Parse(txtId.Text),
decimal.Parse(txtSalary.Text),
txtSubjects.Text);
FormsMethods.AddRecordToList(ListOfLecturers, newLecturer);
this.Close();
}
catch (ArgumentNullException ex)
{
MessageBox.Show("All the fields need to be completed. " + ex.Message,
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (ArgumentOutOfRangeException ex)
{
MessageBox.Show("Field values are not valid. " + ex.Message,
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (ArgumentException ex)
{
MessageBox.Show(ex.Message, "Information",
MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (FormatException ex)
{
MessageBox.Show("Impossible store data. " + ex.Message, "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}