private void WinUpdateGrade_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
BO.StudentCourse scBO = (sender as GradeWindow).curScBO;
MessageBoxResult res = MessageBox.Show("Update grade for selected student?", "Verification", MessageBoxButton.YesNoCancel, MessageBoxImage.Question);
if (res == MessageBoxResult.No)
{
(sender as GradeWindow).cbGrade.Text = (sender as GradeWindow).gradeBeforeUpdate.ToString();
}
else if (res == MessageBoxResult.Cancel)
{
(sender as GradeWindow).cbGrade.Text = (sender as GradeWindow).gradeBeforeUpdate.ToString();
e.Cancel = true; //window stayed open. cancel closing event.
}
else
{
try
{
bl.UpdateStudentGradeInCourse(curStu.ID, scBO.ID, (float)scBO.Grade);
}
catch (BO.BadStudentIdCourseIDException ex)
{
MessageBox.Show(ex.Message, "Operation Failure", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
}
public static BO.StudentCourse CopyToStudentCourse(this DO.Course course, DO.StudentInCourse sic)
{
BO.StudentCourse result = (BO.StudentCourse)course.CopyPropertiesToNew(typeof(BO.StudentCourse));
// propertys' names changed? copy them here...
result.Grade = sic.Grade;
return(result);
}
private void btUpdateGradeInCourse_Click(object sender, RoutedEventArgs e)
{
BO.StudentCourse scBO = ((sender as Button).DataContext as BO.StudentCourse);
GradeWindow win = new GradeWindow(scBO);
win.Closing += WinUpdateGrade_Closing;
win.ShowDialog();
}
public GradeWindow(BO.StudentCourse scBO)
{
InitializeComponent();
curScBO = scBO;
gradeBeforeUpdate = (float)scBO.Grade;
for (int i = 0; i <= 100; i++)
{
cbGrade.Items.Add(i);
}
DataContext = curScBO;
}
private void btUnRegisterCourse_Click(object sender, RoutedEventArgs e)
{
try
{
BO.StudentCourse scBO = ((sender as Button).DataContext as BO.StudentCourse);
bl.DeleteStudentInCourse(curStu.ID, scBO.ID);
RefreshAllRegisteredCoursesGrid();
RefreshAllNotRegisteredCoursesGrid();
}
catch (BO.BadStudentIdCourseIDException ex)
{
MessageBox.Show(ex.Message, "Operation Failure", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
