private void loginButton_Click(object sender, RoutedEventArgs e)
{
try
{
if (usernameTextBox.Text == "")
{
errorLabel.Content = "Please enter your Librarian username.";
}
else if (passwordTextBox.Password == "")
{
errorLabel.Content = "Please enter your password.";
}
else
{
LibrarianBLL user = null;
foreach (PersonBLL p in people)
{
if (p is LibrarianBLL l)
{
if (usernameTextBox.Text == l.UserID)
{
if (passwordTextBox.Password == l.Password)
{
User = l;
DialogResult = true;
}
}
}
if (user == null)
{
errorLabel.Content = "Invalid username and password.";
}
}
}
}
catch (Exception ex)
{
errorLabel.Content = ErrorHandler.InnermostExceptionMessage(ex);
}
}
public CheckInAndOutMenu(LibrarianBLL User, CardholderBLL Patron)
{
InitializeComponent();
user = User;
patron = Patron;
}
//This constructor is used to display the user (librarian) data of the logged in librarian.
public SearchResultsPage(BookSearch SearchResults, LibrarianBLL User)
: this(SearchResults)
{
user = User;
modeLabel.Content = user.LoginMessage();
}
public LibrarianMenu(LibrarianBLL librarian)
{
InitializeComponent();
User = librarian;
}