//brings up screen that allows user to select class
 private void ClassChoose_Click(object sender, EventArgs e)
 {
     ofd.Filter = "sqlite3|*.sqlite3";
     if (ofd.ShowDialog() == DialogResult.OK)
     {
         className     = ofd.FileName;
         classNameSafe = ofd.SafeFileName;
         student       = new backend(className);
         studentList   = student.randomizeArray("COSC101");
     }
 }