private void Hyperlink_Click(object sender, RoutedEventArgs e)
        {
            if (Student != null)
            {
                long id      = Student.Id;
                bool?success = new StudentIDForm(Student).ShowDialog();
                if (success != null && (bool)success)
                {
                    //fetch the new student
                    Student = Student.GetStudent(Student.Username);
                    RefreshInfo();

                    if (Student.Id == id)
                    {
                        MessageBox.Show("User ID matched the previously entered ID no edits will take place ", "Error", MessageBoxButton.OK, MessageBoxImage.Warning);
                    }
                    else
                    {
                        MessageBox.Show("Successfully changed your id");
                    }
                }
                else
                {
                    MessageBox.Show("Your id did not change.");
                }
            }
        }
Exemple #2
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        private void Application_Startup(object sender, StartupEventArgs e)
        {
            //Stop the program if classroom isn't defined
            if (string.IsNullOrWhiteSpace(Settings.Default.Classroom))
            {
                MessageBox.Show("Classroom not found. Please check the configuration files.",
                                "404 error", MessageBoxButton.OK, MessageBoxImage.Error);
                Shutdown(0);
                return;
            }

            MainWindow = new MainWindow();
            ((MainWindow)MainWindow).HideWin();

            string userName = Environment.UserName;

            DateTime now     = DateTime.Now;
            Course   course  = null;
            Student  student = null;

            try
            {
                //may throw a sql exception
                course = Course.GetCoursesByTime(Settings.Default.Classroom, now);

                //may throw a sql exception
                student = Student.GetStudent(userName);

                if (student == null)
                {
                    //ask for student id
                    StudentIDForm stuIdForm = new StudentIDForm(userName);
                    bool?         success   = stuIdForm.ShowDialog();

                    if (success != null && (bool)success)
                    {
                        student = Student.GetStudent(userName);
                        if (student == null)
                        {
                            MessageBox.Show("Sorry, some error has occurered, and you will not be counted as attended. Please try agian.",
                                            "Internal error", MessageBoxButton.OK, MessageBoxImage.Error);
                        }
                    }
                }
            }
            catch (MySqlException ex)
            {
                MessageBox.Show(ex.Message, "Server Error", MessageBoxButton.OK, MessageBoxImage.Error);
            }

            if (student != null && RegisterAttendance(course, student, now))
            {
                ((MainWindow)MainWindow).Course  = course;
                ((MainWindow)MainWindow).Student = student;
                ((MainWindow)MainWindow).ShowWin();
            }
            else
            {
                //Shutdown();
                MainWindow.Close();
            }
        }