protected void btnAddCourse_Click(object sender, EventArgs e)
{
if (HttpContext.Current.Session["chosenCRN"] != null)
{
var current = HttpContext.Current.Session["User"] as User;
StudentDAL courseAdder = new StudentDAL();
int crn = (int)HttpContext.Current.Session["chosenCRN"];
try
{
SemesterDAL semesterChecker = new SemesterDAL();
if (semesterChecker.CheckIfAddDropHasPassed(this.ddlSemester.SelectedValue))
{
CourseSignUpHelper helper = new CourseSignUpHelper();
if (helper.CheckIfStudentCanSignUpForCourseBasedOnPreReqs(crn, current.UserId))
{
if (helper.CheckIfCanSignUpForCourseBasedOnTimes(crn, current.UserId,
this.ddlSemester.SelectedValue))
{
courseAdder.addCourseByCRNAndStudentUID(crn, current.UserId);
Response.Redirect("BrowseCourses.aspx", false);
}
else
{
this.lblCourseToAdd.Text =
"You can't sign up for this course, its time conflicts with another course you have already signed up for.";
}
}
else
{
this.lblCourseToAdd.Text =
"You can't sign up for this course due to pre-requisite requirements" + Environment.NewLine;
this.lblCourseToAdd.Text += helper.GetPreReqsAndFormatForDisplay(crn);
}
}
else
{
{
this.lblCourseToAdd.Text = "The add drop deadline for this semester has already passed.";
}
}
}
catch (Exception ex)
{
if (ex.Message.Equals("This course is still in progress."))
{
this.lblCourseToAdd.Text = ex.Message;
}
else
{
this.lblCourseToAdd.Text = "You are already in this course";
HttpContext.Current.Session["chosenCRN"] = null;
}
}
}
}
protected void AvailableCourses_SelectedIndexChanged(object sender, EventArgs e)
{
int crn = (int)this.AvailableCoursesGrid.SelectedValue;
HttpContext.Current.Session["chosenCRN"] = crn;
CourseDAL courseGetter = new CourseDAL();
Course courseToAdd = courseGetter.GetCourseByCRN(crn);
TeacherDAL dal = new TeacherDAL();
Models.Teacher instructor = dal.GetTeacherByCRN(crn);
string instructorName = instructor != null ? instructor.Name : "TBA";
this.lblCourseToAdd.Text = "Course to Add: " + courseToAdd.CRN + " " + courseToAdd.Name + " " +
courseToAdd.SectionNumber + " Instructor: " + instructorName;
CourseSignUpHelper degreeChecker = new CourseSignUpHelper();
var current = HttpContext.Current.Session["User"] as User;
if (!degreeChecker.CheckIfCourseContributesToMajor(crn, current.UserId))
{
this.lblCourseToAdd.Text +=
Environment.NewLine + "This course does not contribute to your degree program.";
}
}
