/// <summary>
/// Communicates with server and exchange login info.
/// Upon successful login of normal user, it shows a popup
/// Upon successful login of admin user, it shows a popup + load admin panel
/// If login credentials are not correct, it shows a popup reporting this
/// </summary>
private void TryLogin()
{
try
{
ServiceReference.ServiceClient login = new ServiceReference.ServiceClient();
bool isFound = login.MakeLogin(UserNameTextBox.Text, EncodedPassword);
if (isFound == false)
{
MessageBox.Show("User Not Found");
}
else
{
if (isFound == true && UserNameTextBox.Text == "admin")
{
MessageBox.Show($"Successfull Login. Welcome {UserNameTextBox.Text}!");
AdminWindow adminWindow = new AdminWindow();
adminWindow.Show();
}
if (isFound == true && UserNameTextBox.Text != "admin")
{
MessageBox.Show($"Successfull Login. Welcome {UserNameTextBox.Text}!");
}
}
}
catch (Exception err)
{
MessageBox.Show($"Error while trying to login in client side: {err}");
}
}
private void button_Click(object sender, RoutedEventArgs e)
{
mitoden_dbgr13Entities db = new mitoden_dbgr13Entities();
List<Person1> mylist = new List<Person1>();
try
{
mylist = db.Person1.ToList();
for (int i = 0; i < mylist.Count; i++)
{
if (UserNameTextBox.Text == mylist[i].PK_Username && PasswordBox.Password == mylist[i].Password)
{
if (mylist[i].trueorfalse == true)
{
AdminWindow adw = new AdminWindow();
adw.Show();
}
if (mylist[i].trueorfalse == false)
{
StatisticsWindow stw = new StatisticsWindow(UserNameTextBox.Text);
stw.Show();
}
this.Hide();
UserNameTextBox.Text = "";
PasswordBox.Password = "";
return;
}
else
{
}
}
MessageBox.Show("Invalid Username or Password. Please try again.");
}
catch (Exception)
{
MessageBox.Show("Error");
}
}
// Same as ShowMainWindow but for the AdminWindow
private void ShowAdminWindow()
{
if (AdminWindow != null && !AdminWindow.Dispatcher.CheckAccess())
{
AdminWindow.Dispatcher.BeginInvoke((Action)ShowAdminWindow);
}
else
{
if (!AdminWindowShown)
{
AdminWindow = new AdminWindow(Connection, CurrentUser);
AdminWindow.Closed += (s, o) => AdminWindowShown = false;
AdminWindow.Show();
AdminWindowShown = true;
}
else
{
AdminWindow.Activate();
}
}
}
// Same as ShowMainWindow but for the AdminWindow
private void ShowAdminWindow()
{
if (AdminWindow != null && !AdminWindow.Dispatcher.CheckAccess())
AdminWindow.Dispatcher.BeginInvoke((Action)ShowAdminWindow);
else
{
if (!AdminWindowShown)
{
AdminWindow = new AdminWindow(Connection, CurrentUser);
AdminWindow.Closed += (s, o) => AdminWindowShown = false;
AdminWindow.Show();
AdminWindowShown = true;
}
else
AdminWindow.Activate();
}
}
private void LogInAnswer(IAsyncResult ar)
{
networkStream.EndRead(ar);
byte[] dataLogInAnswer = (byte[])ar.AsyncState;
IFormatter formatter = new BinaryFormatter();
TrueMessage trueMessageFromServer = new TrueMessage();
using (MemoryStream memoryStream = new MemoryStream(dataLogInAnswer))
{
trueMessageFromServer = (TrueMessage)formatter.Deserialize(memoryStream);
}
if (trueMessageFromServer.Command == Command.Approve)
{
Disconnect();
if ((string)trueMessageFromServer.Message == "Student")
{
Application.Current.Dispatcher.Invoke((Action) delegate
{
string login = UsernameTextBox.Text;
StudentWindow dashBoard = new StudentWindow(login);
dashBoard.Show();
this.Close();
});
}
else if ((string)trueMessageFromServer.Message == "Teacher")
{
Application.Current.Dispatcher.Invoke((Action) delegate
{
string login = UsernameTextBox.Text;
TeacherWindow dashBoard = new TeacherWindow(login);
dashBoard.Show();
this.Close();
});
}
else if ((string)trueMessageFromServer.Message == "Admin")
{
Application.Current.Dispatcher.Invoke((Action) delegate
{
string login = UsernameTextBox.Text;
AdminWindow dashBoard = new AdminWindow(login);
dashBoard.Show();
this.Close();
});
}
else
{
MessageBox.Show($"Error message from server. Message: {(string)trueMessageFromServer.Message}", "Error");
}
}
else if (trueMessageFromServer.Command == Command.Reject)
{
MessageBox.Show((string)trueMessageFromServer.Message);
}
else
{
MessageBox.Show("Received message from server is incorrect.", "Error");
}
}
