void LoadResults()
{
try
{
ClearAndFill(Results, Honglorn.GetResults(CurrentCourse, CurrentYear));
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
void LoadYears() => ClearAndFill(Years, Honglorn.YearsWithStudentData());
void LoadCourseNames() => ClearAndFill(Courses, Honglorn.ValidCourseNames(CurrentYear));