public void Teardown()
{
_passwordForm.Dispose();
while (_passwordForm.Disposing)
{
}
_passwordForm = null;
}
//*******************************************
// event handling method for the idTextBox
//
public void IdTextBoxKeyUp(object source, KeyEventArgs e)
{
// We only want to act if the Enter key is pressed
if (e.KeyCode == Keys.Enter)
{
// First, clear the fields reflecting the
// previous student's information.
ClearFields();
// We'll try to construct a Student based on
// the id we read, and if a file containing
// Student's information cannot be found,
// we have a problem.
currentUser = new Student(idTextBox.Text + ".dat");
currentUser.ReadStudentData(schedule);
// Test to see if the Student fields were properly
// initialized. If not, reset currentUser to null
// and display a message box
if (!currentUser.StudentSuccessfullyInitialized())
{
// Drat! The ID was invalid.
currentUser = null;
// Let the user know that login failed,
string message = "Invalid student ID; please try again.";
MessageBox.Show(message, "Invalid Student ID",
MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else
{
// Hooray! We found one! Now, we need
// to request and validate the password.
passwordDialog = new PasswordForm();
passwordDialog.ShowDialog(this);
string password = passwordDialog.Password;
passwordDialog.Dispose();
if (currentUser.ValidatePassword(password))
{
// Let the user know that the
// login succeeded.
string message =
"Log in succeeded for " + currentUser.Name + ".";
MessageBox.Show(message, "Log In Succeeded",
MessageBoxButtons.OK, MessageBoxIcon.Information);
// Load the data for the current user into the TextBox and
// ListBox components.
SetFields(currentUser);
}
else
{
// The id was okay, but the password validation failed;
// notify the user of this.
string message = "Invalid password; please try again.";
MessageBox.Show(message, "Invalid Password",
MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
// Check states of the various buttons.
ResetButtons();
}
}
//**********************************************
// event handling method for "Log In" Button
//
public void LogInButtonClicked(object source, EventArgs e)
{
// First, clear the fields reflecting the
// previous student's information.
ClearFields();
// Display password dialog
passwordDialog = new PasswordForm();
passwordDialog.ShowDialog(this);
string password = passwordDialog.Password;
string id = passwordDialog.Id;
passwordDialog.Dispose();
// We'll try to construct a Student based on
// the id we read, and if a file containing
// Student's information cannot be found,
// we have a problem.
currentUser = new Student(id+".dat");
currentUser.ReadStudentData(schedule);
// Test to see if the Student fields were properly
// initialized. If not, reset currentUser to null
// and display a message box
if (!currentUser.StudentSuccessfullyInitialized()) {
// Drat! The ID was invalid.
currentUser = null;
// Let the user know that login failed,
string message = "Invalid student ID; please try again.";
MessageBox.Show(message, "Invalid Student ID",
MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
else {
// We have a valid Student. Now, we need
// to validate the password.
if (currentUser.ValidatePassword(password)) {
// Let the user know that the login succeeded.
string message =
"Log in succeeded for " + currentUser.Name + ".";
MessageBox.Show(message, "Log In Succeeded",
MessageBoxButtons.OK, MessageBoxIcon.Information);
// Load the data for the current user into the TextBox and
// ListBox components.
SetFields(currentUser);
}
else {
// The id was okay, but the password validation failed;
// notify the user of this.
currentUser = null;
string message = "Invalid password; please try again.";
MessageBox.Show(message, "Invalid Password",
MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
// Check states of the various buttons.
ResetButtons();
}
