private void saveButton_Click(object sender, EventArgs e)
{
Student aStudent = new Student();
string regNo = regNoTextBox.Text;
aStudent = studentManager.SearchStudent(regNo);
string message = "";
if (aStudent != null)
{
foreach (Book aBook in books)
{
bookManager.UpdateBook(aBook.Id, aBook.OutsideCopy, 1);
}
string dateTime = dtpIssueDate.Text;
message = issueManager.GetBook(books, DateTime.ParseExact(dateTime, "dd-MM-yyyy hh:mm:ss", CultureInfo.InvariantCulture), aStudent);
ClearAll();
MessageBox.Show(message);
}
}
