//Constructor
public MainWindow()
{
InitializeComponent();
dis1 = new DisplayStudents();
selectedStudent = null;
context = new Model1();
passedStudents = new StudentList();
failedStudents = new StudentList();
}
private void editSelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (buttonDisabled)
{
mw.editStudent.IsEnabled = true;
buttonDisabled = false;
}
studentList = (StudentList)studentGrid.DataContext;
//When deleting a student the list box can become confused due to
//the selected index disappearing. If it gets confused this resets
//the selected item back to the default -1
try
{
mw.SelectedStudent = studentList[studentListBox.SelectedIndex];
}
catch
{
studentListBox.SelectedIndex = -1;
mw.editStudent.IsEnabled = false;
buttonDisabled = true;
}
e.Handled = true;
}
//Window Loaded
public void Window_Loaded(object sender, RoutedEventArgs e)
{
//Find the resource
oc = FindResource("myStudentList") as StudentList;
//Query for all students
all = from student in context.Students
select student;
totalCounter = 0;
passedCounter = 0;
//Add students to resource and count how many students
foreach (var result in all)
{
oc.Add(result);
totalCounter++;
}
//Count students that have achieved either an A, B, C or D passing grade
foreach (var student in oc)
{
if (student.gradePassed(student.FinalGrade))
{
studentPassed(student);
}
else
{
studentFailed(student);
};
}
PercentPassedCalc(totalCounter, passedCounter);
//Displays the listbox, labels, etc. in the frame
Main.Content = dis1;
}