private void DeleteDeclaration()
{
if (!String.IsNullOrWhiteSpace(declarationIDTextBox.Text))
{
Student_Major selectedDeclaration = declarationListBox.SelectedItem as Student_Major;
RegistrationDatabase.Student_Major.Remove(selectedDeclaration);
try {
RegistrationDatabase.SaveChanges();
}
catch (Exception ex) {
MessageBox.Show(ex.Message);
}
BindDeclarationList();
}
}
private void AddDeclaration()
{
if (!String.IsNullOrWhiteSpace(majorIDTextBox.Text) &&
!String.IsNullOrWhiteSpace(studentIDTextBox.Text))
{
Student_Major newDeclaration = new Student_Major {
Major_Id = Convert.ToInt32(majorIDTextBox.Text),
Student_Id = Convert.ToInt32(studentIDTextBox.Text)
};
RegistrationDatabase.Student_Major.Add(newDeclaration);
try {
RegistrationDatabase.SaveChanges();
}
catch (Exception ex) {
MessageBox.Show(ex.Message);
}
BindDeclarationList();
}
}
private void DeclarationListBox_SelectedIndexChanged(object sender, EventArgs e)
{
Student_Major selectedDeclaration = declarationListBox.SelectedItem as Student_Major;
declarationIDTextBox.Text = selectedDeclaration.Id.ToString();
}
