private void frmCourse_Load(object sender, EventArgs e)
{
txtID.Text = course.CourseID;
txtDesc.Text = course.Description;
cbxFall.Checked = course.Fall;
cbxWinter.Checked = course.Winter;
cbxSpring.Checked = course.Spring;
cbxSummer.Checked = course.Summer;
if (course.Prereqs != null && course.Prereqs.Length > 0)
{
NList iter = course.Prereqs;
for (iter.MoveFront(); iter.Index >= 0; iter.MoveNext())
{
lbxPre.Items.Add(iter);
}
}
else
{
lbxPre.Items.Add("None");
}
if (course.Coreqs != null && course.Coreqs.Length > 0)
{
NList iter = course.Coreqs;
for (iter.MoveFront(); iter.Index >= 0; iter.MoveNext())
{
lbxCo.Items.Add(iter);
}
}
else
{
lbxCo.Items.Add("None");
}
}
private void AddCourse(Course course, CourseDB term, ListBox lbx)
{
NList iter = course.Prereqs.Copy();
AcademicYear ay;
Course cs;
bool found;
// Check previous years for prereqs
for (int i = 0; i < yearIndex; ++i)
{
ay = plan[i];
for (iter.MoveFront(); iter.Index >= 0; iter.MoveNext())
{
cs = (Course)iter.Get();
found = ay.Fall.ContainsKey(cs.CourseID) || ay.Winter.ContainsKey(cs.CourseID) || ay.Spring.ContainsKey(cs.CourseID) || ay.Summer.ContainsKey(cs.CourseID);
if (found)
{
iter.Delete();
}
}
}
ay = plan[yearIndex];
// Check current year for prereqs
for (iter.MoveFront(); iter.Index >= 0; iter.MoveNext())
{
cs = (Course)iter.Get();
if (term == ay.Winter)
{
found = ay.Fall.ContainsKey(cs.CourseID);
}
else if (term == ay.Spring)
{
found = ay.Winter.ContainsKey(cs.CourseID) || ay.Fall.ContainsKey(cs.CourseID);
}
else if (term == ay.Summer)
{
found = ay.Spring.ContainsKey(cs.CourseID) || ay.Winter.ContainsKey(cs.CourseID) || ay.Fall.ContainsKey(cs.CourseID);
}
else
{
found = false;
}
if (found)
{
iter.Delete();
}
}
// Only add the course if it's prerequisites have been satisfied
if (iter.Length < 1)
{
term.Add(course.CourseID, course);
ay.SaveYear();
term.PopulateListBox(lbx);
}
}