public Form1()
 {
     collegeEntities = new CollegeEntities();
     courseForm      = new CourseForm();
     enrollmentForm  = new EnrollmentForm();
     instructorForm  = new InstructorForm();
     majorForm       = new MajorForm();
     sectionForm     = new SectionForm();
     studentForm     = new StudentForm();
     InitializeComponent();
 }
 private void EnrollmentForm_Click(object sender, EventArgs e)
 {
     if (collegeEntities.Students.ToList().Count > 0 && collegeEntities.Courses.ToList().Count > 0)
     {
         enrollmentForm = new EnrollmentForm();
         enrollmentForm.Show();
     }
     else
     {
         MessageBox.Show("Error! The Student and Course tables must both have at least\none entry before the Enrollment table can be modified.");
     }
 }